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The cricket sound is made using the tone(9,thisPitch,10) function.

With the addition of pressure sensors an Arduino can be used to detect collisions and allow for the device to stop pushing or move away

An Arduino could be used to emulate the behavior of a lizard by providing a controller to drive the limbs a robotic lizard. It can also be used to interface to sensors such as a light sensor which could be used to either attrack the robotic lizard or repel it, or such as a heat sensor where the lizard would become less active when cold and more active when warm.

The Arduino could be attached to a gyroscope for allowing the robot to maintain orientation when moving through a 3 dimensional obstical course.

 

glad I could review these after the live session.

Iron

Viewing from archive

Iron

Describe a control method in which the Arduino can operate a Soft Robot? Use PWM to control piezo or other elements that would pull/bend wires and cause soft robot to bend and move. 

 

How can the Arduino emulate the behavior of a lizard? You can program PWMs to control motors to make the body move or to control LEDs to change the body color (chameleon). 

What instruction in the Electronic Cricket Sketch imitates its sound? 

The tone command out the PWM pin (pin9) creates a square wave. When run through a speaker it creates the cricket sound.

Iron

Thank you, Arduino will open new worlds for me.

thank you for a great info

Iron

Thanks for the talk.  Would be good to give a quick overview of the map() and tone() parameters and include them in the slides.

As others have stated, the C-to-F conversion is incorrect.

Thanks again.

Iron

The cricket sound is generated using the tone command

Instead of driving a speaker, the temperature readings could be used to controll the PWM to a motor so the motor drives faster when it gets warmer, and slower when it gets colder.

Signing off now. I will see you guys tomorrow. Have a great day.

Iron

Thanks, mrdon.   Good night.

Iron

The Arduino can be used in the control loop of systems. Part of the design would be in detection in overload conditions such as bumping into something. When this situation occurs the control loop could be designed to relax and flex to reduce the force of the impact.

Thank you for the great presentation.

Iron

Thank you for the presentation

 

Yes. The Arduino DUE is using a high power Atmel SAM microcontroller. It has lots of I/O support therefore reading 4 quadratue encoders is not problem. Just make sure the output generated by the encoder is 3.3V. If its higher,will need a voltage level shifter IC or voltage divider to reduce the signal to 3.3V. Higher voltages will damage the DUE.

Gold

Some responses to the questions:

The Arduino could drive an arm and receive feedback from a sensor for position stops.

To emulate the behavior you could use a thermistor and have code that gives a command for movement after it is above a minimum temperature.

The 'tone(9, thisPitch, 10) along with the delay imitates the cricket sound.

Iron

Thanks Don, Rob, and all involved 

Iron

Fantastic solution luizcosta. Your are truly an innovative Maker/Engineer!

Gold

Correct answer lbrooks!

Gold

@Don, if we use TMP36 instead of thermistor and correct the circuit, should the result be the same?

Iron

Thank you for buying my book. I hope you have a great time exploring the project in the book with your Arudino UNO R3 and shields. Happy Making!!!

Gold

The TMP36 is a temperature sensing IC not a thermistor. This IC is used for low error temperature reading required for critical or sensitive temperature sensing applications. Pull the datasheet for the wiring the device correctly to your Arduino.

Gold
Robandee:
These CEC/DesignNews PowerPoint presentations, viewed using iPad Safari, show all slide numbers as zero "0".
I wonder if the solution would be to export to *.ppt from *.keynote. The problem could be that there is a versio lag in the Keynote software. I've had that problem too.
Iron

thanks to don, rob, digikey and ieee...

Thanks everyone for your participation. Great lecture, Don! See you all tomorrow.

Blogger

Ok and your welcome!

Gold

Now, that's really interesting. Just wondering what could be done to allow those machines to show the correct slide numbers? Any suggestions from the community will be helpful.

Gold

@ALL: Thank you for this fun experience. I need to go for I can't way to get some more of my latest motion detection alarm I am implementing with Teensy+ with the Arduino software. Everyone have fun!

Iron

The Arduino StarterKit that I purchased has yet a different temperature sensor:  semiconductor device "TMP36" that is much easier to use if you want output linearized at higher voltage level.   DegC = (voltage - 0.5) * 100.   DegF = 9.0/5.0 * DegC + 32.   Great for data logging & temperature control of a yogurt maker!

Iron

Correct. The output voltage produced by a thermocouple is in the low micro to millivolt range. Therefore, a signal conditioning amplifier is need to increase or scale the voltage to a level  a microcontroller can read. 

Gold
These CEC/DesignNews PowerPoint presentations, viewed using iPad Safari, show all slide numbers as zero "0".
Iron

Thanks, Don and Rob!

Iron

@mrdon: No, I think I began the class with the complete deck, and may have delete the last while manipulating several screens in two monitors, plus the Arduino IDE. Thanks you for digging into that.

Iron

thanks  Dona and Rob. Ill listen to the archived file.

Iron

Correct. It's part of the Arduino standary library of functions.

Gold

Ok. The slide deck had the page number  centered and at the bottom the page. Interesting that your slide started with 0. Will need to investigate.

Gold

I enjoyed reading the comments even without the audio. I will listen to the audio when it becomes available. 

Thanks 78RPM, the reference does not says what is the highest frequency, any idea?, I have the Due board

 

Iron

Thanks for posting this slide to one of the students.

Gold

thanks Don and all, see you tomorrow.

Iron

Yes it is. There were a group of ITT Tech students who used a PID controller for their self balancing robot project. Worked pretty well.

Gold

@luizcosta:  Slide 16 content...

  int thisPitch = map(sensorReading, expectedMin, expectedMax, 10, 100);

  int thisTemperature =

    map(sensorReading, expectedMin, expectedMax, -10, 40);

   fahrenheit = (5.0/9.0) * (thisTemperature + 32);

  Serial.println(fahrenheit);

   // play the pitch twice, to imitate a cricket:

  tone(9, thisPitch, 10);

   // the delay is proportional to the temperature

  // (faster chirps mean higher temperatures)

  delay(60000/(fahrenheit * 1000));

  tone(9, thisPitch, 10);

  delay(1);        // delay in between reads for stability

}

Iron

There are enough resources left to mimic also the ant from the La Fontaine fable.

Iron

thanks for the presentation Don

Iron

@Don: does the Serial monitor object is global so we do not declar it before the setup() function.

Iron

@Pedro_C The tone is a square wave of the specified frequency and duration with a 50% duty cycle.
http://arduino.cc/en/Reference/Tone

Gold

Audio working now in Chrome but restarted from behinning

Thanks!

Iron

ok... shower and get an early friday morning start... thx for the presentation

Iron

k@Don: My slide file came with 15 slides, according to the numbers on the side bar. And it starts at 1, not 0.

Iron

ok... clear now... thx all

Iron

Correct. If you want to see the Celsius and Farenheit data, then use the Serial Monitor or an LCD.

Gold

@bobybacs: thanks! Syntax for the tone( ) is helpful!

Iron

what is the quality of the tone in terms of bits 16 bits? as CD recording?

 

Iron

You can see the reference for the tone function at http://arduino.cc/en/Reference/Tone

Gold

Is the Arduino powerful enough to implement PID controllers?

Iron

ahhhh thx bobybacs.... how would i know thst from the slides?

Iron

Syntax

tone(pin, frequency)
tone(pin, frequency, duration)

Parameters

pin: the pin on which to generate the tone

frequency: the frequency of the tone in hertz - unsigned int

duration: the duration of the tone in milliseconds (optional) - unsigned long

Iron

Slide 16 is the last .ppt for today's session. Did you have the right slide deck for today?

Gold

The 10l and 1k resistor are in series not in paralell so the  value is different.

Iron

tone(9, thisPitch, 10); what does the 9 and 10 mean???

Iron

Sorry for the audio, probably wasn't speaking loud into the mic. The reason for using the pwm pin is because a squarewave is being produced. This squarewave sounds like a cricket chipring.

Gold

FYI article on front page of Design News on Bio mimicry . DARPA funded project that allows someone to scale vertcial glass wall using inspiration (reversible Adhesives)  from Gecko

Iron

Thanks Don/DigiK

 

Iron

@DON: What is slide 16? I don't see it.

Iron

Great answer automaticbeetle. You are absolutely correct.

Gold

I like how you explained the driver circuit use to allow the chirp sound to be present. Now, look at the sketch on slide 16 and found the comment that explains how the cricket sound is made to get the answer.

Gold

Thank you, I have my Arduino on order so I can start playing around.

Iron

Thank you, Don and Digikey!

@Jafet, 11K is not a standard 5% resistor value

Gold

The conversion from Celsius to Fahrenheit is only needed for display

Iron

Thermocouples have very low output voltage changes per degree temperature change so you'd need an amplifier to use one.

2nd quest.: temp change read. Arduino output: provide current to a motor in same ratio of temp change. 

Iron

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

They can use  stepper motors with thermistor. The stepper activates the tail and front legs.

 

@Don, why we need to connect the speaker into pwm? Because the CEC audio is not good today, sometime I cannot hear your voice. Thank you!

Iron

@DON question on cricket sound: The chirping sound needs a function to emulate the attach and decay of the sound envelope. I don't know if these functions are available from the motor control suyite of libraries.

Iron

Why not use one 11 Kohm resistance ? instead of two? Is it hard to find?

Iron

I think it would be interesting - and not too hard - to replicate the functionality of this arduino cricket simulator with a couple of 555s in astable mode.

Iron

Thank you fo the lesson

Iron

Thanks Don! and Digi-key!

Iron

I have your book coming from Amazon, ans the Arduino R3 UNO, and several interfaces from ebay, so it should be nice when i recieve everything.Thanks for thwe very interesting lecture.

Iron

You are absolutely correct Robandee.

Gold

The NTC is non-linear so the voltage to degrees conversion is much more complicated.

so wot would: tone(1, thisPitch, 2); do?



Iron

Interesting lesson. 

Iron

@paulzad : this page is the live chate page that they told us to "go to".

Here's the link to the Makezine article on biomimicry:

http://makezine.com/2014/06/10/four-student-designed-nature-inspired-transporation-solutions/

Gold

Thanks Don, missed the audio part of it

tone(9, thisPitch, 10);
Iron

Very good speach Don, Thanks all

 

Iron

@dbwarren No, it can't directly read a thermocouple for normal room temperatures.

@dmiddleton:  Fahrenheit formula seems to be in error.   If thisTemperature is deg C, then fahrenheit = 9/5 * thisTemperature + 32.   Do you agree?

Iron

how do u go to the live chat page

 

Iron

Thanks Don, good lesson, see you tomorrow,

@dbwarren, try another arduino like the arduino micro, need to check the data sheet. the adc has an amplifier built in with gain of X1, X40, 100, 200 or something like that.

Iron

Good lecture, I missed any questions today.

Iron

Answer Don's question:
What instruction in the Electronic Cricket Sketch imitates its sound?
using command for pwm DAC?? with a little time could be a sound!! and using some capacitor between speaker and output driver.

Iron

Thanks from Long Island!

 

Iron
Tone() simulates one chirp. With the delay and 2nd tone() you get the second chirp (or 2nd half of a chirp, if you prefer).
Iron

@DON: Use of MimicryP The solenoid-muscle idea I mentioned earlier, would be perfectly useful for artificial limps.

Iron

Thanks Don and Rob

Bronze

tone(9,thisPitch, 10)

 

Iron

tone(9, thisPitch, 10);

 
Iron

thanks see you tomorrow

 

Iron

I understand the example uses a thermister, but I still would likr to know if you can read a thermocouple.

Iron

is there a table of different 'tones' somewhere?

 

Iron

Well that was a waste of a half hour!

Iron

tone(), delay(), tone()

 

Iron

It's the combination of the tone functions with the variable delay.  The tone function by itself doesn't do it.

Iron

Thank you very much Don, good lecture

The tone is played twice to make the cricket sound

Iron

Thank you Don and Rob.

Iron

Thanks once more to Don and Rob for the course

Iron

 tone(9, thisPitch, 10);

Iron

Thank you Don, appreciate the intro to biomimicry.

Iron

Beautiful........Thanks Don

Iron

What instruction in the Electronic Cricket Sketch imitates its sound?


Tone, Delay, Tone

Iron

delay(6000/(fahrenheit... emulates cricket sound temperature sensitivity...

Iron

Thanks, Don.  Another great day.

tone(9, thisPitch, 10)

 

tone(9, thisPitch, 10);

Iron

Answer: thisPitch variable is calculated from mapping the temperature to our range and passed to the tone function

Gold

Use tone( ) function.

Iron

Thank you Don and Rob.

Iron

What instruction in the Electronic Cricket Sketch imitates its sound?

tone(9,thisPitch, 10)

Iron

The chirp is the combination of the 2 tones with the variable delay.

Iron

What instruction in the Electronic Cricket Sketch imitates its sound?

tone(9,thisPitch,10)

Iron

The delay instruction provides the variability neede for the chirps.

Iron

The cricket sound is based on the tone() function along with the variable delay between pulses.

Iron

Tone(9, thisPitch, 10)

Assigns output on pin 9 with PWM for defined thisPitch tone, and a duration of 10

Iron

To play sound:

tone(9, thisPitch, 10);

Iron

  tone(9, thisPitch, 10);

Silver

tone(9, thisPitch, 10);

tone(9, thisPitch, 10);

Iron

Qfinal: tone(9,thisPitch,10)

Iron

tone(9, thisPitch, 10);

Iron

tone plus delay...

Iron

tone() makes the chirp

  // play the pitch twice, to imitate a cricket:
  tone(9, thisPitch, 10);

Iron

tone(9, thisPitch, 10); 

Iron

tone(9, thisPitch, 10);

Iron

tone(9, thisPitch, 10);

 

Iron

  tone(9, thisPitch, 10);

Iron

That would be the tone function.  The tone is played twice, and it sounds like a cricket

The cricket sound is emulated by tone() delay() tone().

 

tone(9, thisPitch, 10);

Iron

The Tone command makes the sound

The tone function call.

Iron

Cricket sound is from the "tone" function call.

Bronze

The tone command makes the cricket sound.

Iron

Tone(9, this Pitch, 10)

Iron

tone(9,thisPitch,10)

Iron

tone(9, thisPitch,10)

 

Iron

I only have IE and I can't get the audio.

Iron

tone(9, thisPitch, 10);

Iron

A: to Cricket sound:  tone()

@DON: Are the functions map(() tone(), etc, all available by default in the "standard" library?

Iron

Can arduino Due read 4 quadrature encoders?

 

Iron

I'm unsure about the temperature conversion to Fahrenheit.

Iron

How does delay() react to a negative number as a parameter?

Don's question:

What instruction in the Electronic Cricket Sketch imitates its sound? (

Blogger

THe example circuit uses a THERMISTOR, not a THERMOCOUPLE.   The Thermistor is a device whose resistance varies with temperature.   The thermistor is the large round device pictured on slide 12, connected with alligator clips.   Positive or Negative Temperature Coefficient devices available.  

Iron

Strangely, IE8 is now blocking http://www.blogtalkradio.com.  Can't add to trusted sites because it is http not https.

Iron

@dbwarren - the thermocouple output voltage is low, so an amplifier will be necessary for any reasonable response from the Arduino.

@mcurry, the tone function, according to the Arduino Reference says that the lower limit of frequency is 31 Hz.

Gold

looping went away after a while on IE

 

Iron

Mr, don't you need a delay time to get a average result? between each read! oh in slide 16 result!

Iron

@dbwarren, thermocouple has a very low millivolt output, usually needs an amp to scale it up to volts for reading.

Iron

last time i tell it

i always hear 'last told radio' all the time.

what can i do, must i do ??

i hopt tomorrow it will be over.

van one send me the chat session of day 5; separated in Q. and A. ?

if not separated, it will be useless, i think.

 

 

Iron

Apologies for the audio issues today. Our techs are looking into it. If you are having trouble with the audio today, you can listen to the archived version right after the live session is over. It will be available at the top of this screen. You will probably need to refresh your browser to see the audio bar after the live session is over.

Control methods question:State machine.

 

Iron

Don, Are the resistor values in series with the thermistor selected to produce a voltage of about 50% (2.5V) when the lower environmental temp exists?

?Pitch Range 10 - 100 HZ?  Sub-audio?

Iron

We're now on slide 16.

Blogger

After playing around with NTCs (and their lack of calibration/precision), I recommend moving along to something still cheap, but more robust (DS18B20 or LM75B).  Then you can make a digital thermometer that works really well.  The arduino libraries/examples make the 1-wire or i2c communication almost trivial.

Iron

@Alll: "When the temperature rises, the restence of the thermistor decreases, and the output of the VD increases, which will alffect the audio pitch according to your needs."

Iron

Can the arduino read a thermocouple, or does it need an aplifier?

Iron

Logout/login again fixed it for about 1 minute.

Iron

Circuit seggestion: Replace the 10k pot with an audio transformer and a small value pot.  Radio Shack offers a very inexpensive (<$3) 10k to 8ohm audio transformer.

Gold

We're now on slide 15.

Blogger

IE audio is not working either

Iron

Why is there a 1Kohm when you already have the 10Kohm in series?

Iron

seems to have fixed itself for the last 5 minutes.... here's hoping

 

Iron

I've tried IE and have same problem

Iron

Thermistor or thermocouples at i/p controlling somekind of motor or servo system.

walk fast or slow depent upon temp.

Iron

We're now on slide 14.

Blogger

Yes.  Layout sometimes has to be adjusted based on dimensions and trace length requirements.

Iron

You can just rotate the entire Fritzing diagram 180 degrees counterclockwise and then the input is on the left and the output is on the right, then the world is okay again :-)

The problems with audio do not carry through to the archived version. Again, please swith from Chrome to Firefox or IE.

Blogger

@SChancey:  good suggestion.

Iron

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

Actuator as you mentioned and differnet PWM in the arduino

Iron

@Curtis, yes, tone is a library function.  See the reference manual at www.arduino.cc under advanced I/O

Gold

This audio problem is making this a true waste of time!

Iron

MY IE doesn't have audio player

Hmm... maybe a 1K to 10K pot would've been better than 10K to 100K pot to drop less voltage across the pot, but not so small to tax the uC pin drive.

Iron

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10:

change slither rate I.E. a motor controled by PMW or stepper motor.

 

Iron

I have lost hope for the lost hope radio.

Iron

Is tone a library function?

Iron

Suggest additional fixed series 499 ohm resistor to limit the max current out of D9.  A small cap across the speaker would serve as a low pass filter and take some of the PWM edges off.  Since this is a simple circuit, a logic level FET could easily be used as a speaker driver.  For more voltage drive a small audio transformer could also be used.  Nothing like a loud cricket.

Iron

You also what it small so it has small thermal mass

We're now on slide 13.

Blogger

We're still have a looping audio problem with Chrome. Please switch to IE or Firefox.

Blogger

Need flash player? Great. How does one get that to happen in Firefox? I have tried to find the magic button for the past 10 minutes.

 

Iron

@Don and All: I successfuly installed the Fritzing software in my MacBook Pro, and already put one of my lates projects ( TeensyL+ board) on it. I just need now to tweak the PCB view. :0)

Iron

While I don't have any audio problems, it did take a minute or so for the login to respond.... server problem ??

Iron

With a temperature sensor and servo, you could cause the lizard's feet to rise up and down like those that live in the desert do when the sand is too hot.

Iron

The lizard: use different color LEDs and light them as the temp goes up or down - green for cold, yellow - red for hot.

Iron

When temp decreases, have lizard go to sleep (stop moving).  when warm have it walk around.

 

Iron

Use the thermistor as the input to an if then else statement to make a servo driven tail move back and forth when the temp is in a certain range. You could use the servo library from yesterdays tilt sensing motor controller example

Iron
If it can be defined, it can be simulated. Replace the speaker with a motor in the block diagram, change the code definition to invert the thermistor measurement (or get a positive response thermistor), and you have motion with higher temperatures.
Iron

We're now on slide 12.

Blogger

Use a thermistor to sense the temperature and vary how fast your "lizard" moves.

Iron

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

make a moving signal to lizard depend on temp.

Iron

Lizard emulation:  Make it walk.

There is no need for having a pair of resistors in series to make 11k.  A 10k resistor can be used and the Arduino can compensate for the calculation difference.

add motors for motion, the robot lizard could sense temperature change

Iron

 

Describe a control method in which the Arduino can operate a Soft Robot?

Amplfier with timer and arduino PWM

Iron

Use a thermister, and stepper motors, ie control the speed of the stepper motor, The stepper could activate the lizard's tail and front legs

 

in my case, the audio is repeating continuously : (

Iron

As temp increases have the crawl speed increase.

Iron

motor drive by thermistor temperature could seek the warmest place and try to stay there. simple RC cars use forward for going straight, reverse turns the car in one direction. keep circling until pointed in the right direction, then go forward.

Iron

Emulate Lizard -- Muscle wire from Spark Fun (COM-11900) for tongue and tail -- and don't forget a multi color LED to emulate skin color say DEV-08467.

Cheers! :-)

Iron

What lizard behavior do you want the Arduino to emulate?

Iron

Don's question:

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

 

Change the speaker.

Iron

You could emulate the cold-blooded aspect of lizards by using a thermister input and vary the speed of actuation as a function of the temperature.  The block diagram would have actuation outputs in place of the speaker.  Or maybe you'd think up something to do with the speaker so that you have both the actuation and the speaker as outputs.

What lizard behavior do you want the Arduino to emulate?

Iron

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

Sense the temperature and wiggle the tail proportionately with a motor.

Iron

yes you can emulate the behavior of a lizard, have the thermistor control a motor that controls the lizards behavior.

 

Iron

We're now on slide 11.

Blogger

Lizard soft biomimicry

Temperature sensor (NTC thermistor) used to provide an input to the Arduino - and drive an output servo (digital PWM output) with an algorithm that coordinates the range of temperature in proportion to the servo movments (vector) with magnitude, speed, and direction.

Iron

Apologies for the audio issues today. Our techs are looking into it. If you are having trouble with the audio today, you can listen to the archived version right after the live session is over. It will be available at the top of this screen. You will probably need to refresh your browser to see the audio bar after the live session is over.

Use a server to "wag" the tail faster as the temperature goes up (slower as temp goes down).

Bronze

Jmelotte, to see archived programs, just go to the day you want to view and you'll see a button to play the archive. Archives are posted about an hour after the conclusion of the program.

 

Blogger

Lizard: use 2 (or more)  thermal sensors to determine which direction to control motors to move towards desired temperture

Emulating a lizard would seem to take a lot of code but it can be done with the movement of the limbs and tail synced to the temperature. 

Iron

Yes I think you can emulate the temerature dependent movements of a lizard. PWM outputs for instance.

Iron

sense the temperature and use the result to affect the actuation of mechanism that flick the tail

Iron

Yes, you can increase volume if the temperature rises to emulate increased activity, decrease volume to show decreased temperature.   You can add any actuators to represent mechanical movement.  Bascially choose whatever mechanical representation of activity.

Iron

drive PWM differentially based on temp sensor variations...

Iron

dan's? high temp go fast low tep go slow. i guess.

Describe a control method in which the Arduino can operate a Soft Robot?

It can be used pirzo elements with an Arduino to move some kind of arm or muscle.

A servomotor can be activated mimicing lizard moving its tail

Iron

A 2 point calibration of the thermistor is helpful: measure the A/D reading at room temp and get a grasp of the range. Then lower the temp by few degrees and do the same; 

Iron
I think i may have missed some questions trying to get audio working..
Iron

instead of output a sound, you can output a servo control signal based on the temperature

Iron

I give up on audio.  Same problem on IE and Firefox

Iron

The "lizard behavior" could be emulated by using the temperature sensor to control the speed/rate of the acutator proportional to the temperature.

Iron

@paulzad, try my suggestion of not opening any other tabs after logging in.

Gold

Yes,  make it move slow when cold and fast when warm.  Sense the temperature and change the PWM duty cycle to change the speed.

Iron

If you add motors for motion, the robot lizard could sense temperature and move to the warmest spot

Sure as the Arduino senses a greater temperature, whatever is being controlled can increase in activity.

Iron

Sense Temp and activate variable motion controller (servo ?)

Iron

Needs to reset de transmision output memory

 

Iron

@TMAZUR: yes, it seems like 1Kohm or 500ohm pot would've been better for an 8ohm speaker.

Iron

I have no audio here either.

Iron

Lizard:  Change the speaker to a moveable system triggered by the thermistor.

Iron

Havent used Firefox in years. ANyone know how to get the audio track to even APPEAR on this page?

 

Iron

A lizard?  How?  Crawl?  Change colors?  Eat insects?  :-)

Iron

Yes, the lizzard could walk slower or sleep when cold and move or run faster when warm - motion control through an Arduino and respective motors or servoes

 

Iron

IE 11 audio working ok now except for periodic announcements still.

Using a thermistor (to emulate your lizard) ; use an if-then-else loop to decide which temp range to do what.

Iron

Have the thermistor control a PWM drive to the movement motors

LizardBot - Sure, use temp sensing to start activity routine.

Iron

I'm getting the audio "Blog talk radio" repaeting over the audio lesson. I'm not in Google Chrome, what do I do?

 

Iron

Yes the behavior of a lizard can be emulated.  How does a lizard behave?

Iron

A: Make the lizard seek high temp zones.

Iron

Ausio is sketchy here...

Iron

Hi everybody with a littler dealy

Iron

can i relook to the webinars later on ; pleas can one giveme all instructions to do this ?

Iron

how does a cricket detect temperature changes

Don's question:

How can the Arduino emulate the behavior of a lizard? HINT: See the Block Diagram on slide 10

Blogger

@Rob Spiegel - IE 11 audio is starting to loop.  Today's lecture is a wash!

 

Iron

Seems like 10K volume control is a very high value for an 8ohm load.

Would've thought a 1K ohm or 500ohm would provide more smooth range control.

Iron

Describe a control method in which the Arduino can operate a Soft Robot?

piezo electric crystal can distort under current.

Iron

Yep no audio at all on IE8

Iron

Same here. there is only 3 sound loop

 

Iron

again as het first 3 days: i see pass the chats, but completely impossible to follow.

see my solutions mentionned the other days.

this is also urgent.

 

Iron

OK. I switched to Mozilla and now there is no sound at all. At least on Chrome I got the intro loop

Iron

@ALL. I just discovered that if you open another tab the intro loops -- even after you close the tab.  Close the browser and DO NOT open another tab after logging in.

Gold

Chirps in 14 seconds +40 = temp in degrees F

No audio player in IE8.

Iron

4:18am in sydney and all i hear is "blog talk radio" every few seconds :(



Iron

We're now on slide 10.

Blogger

there is only 3 sn loop  sound

Iron

Cool idea: cricket!

Iron

We're still having a problem with Chrome. Please change to IE or Firefox.

Blogger

tried switching to IE after closing chrome, no audio at all in IE

Iron

If your geting no audio or a repeating Bog talk radio switch to a nother browser it is not working with Google Chrome.

 

Iron

i still can't hear the audio of day 5 webinar.

i just hear repeatedly 'last told radio'

i just dit logout and again login.

remains the same problem.

can somebody help me ? else i must stop ! 

Iron

current control through materials to control the expansion and contraction of bio-materials

Iron

I was an electrical engineering professor at Iowa Starte University and we never had teaching materials such as is available today.  PIC demo boards were too expensive for students back then.

IE & still loops occasionaly

Iron

A "soft robot" could use a classic PID controller, fuzzy logic, or neural networks to manage input sensors and output actuators.

Iron

IE is doing the looping again also

Iron

solenoids, metal memory wires.

Iron

Robot that tries to come to the top when it starts to sink in water due to its weight.

Iron

Muscle wire with FET control to drive soft robo.

Iron

Arduino could control I/O sensors actuators whatever the need and an algorithm for control

Iron

Soft robot ideas is interesting. Thanks.

Iron

Cannot hear anything. I am logging out. Have a nice day everyone!

Iron

All I get is 3 seconds of l,,,,,,,, something radio

NO other audio

Iron

Sensor input plus servo output

Iron

I noticed the maker movement about 1-1/2 years ago and have found it fascinating.  It sure seems like a great way to get kids interested in STEM.

Answer: The Arduino can be used to energize an eliment that contracts.  PWM drive can be use to vary the drive to pizio electic devices.  Temperature sensor can be used for input to vary and output.

Iron

Using wires & pullies ?

Using Metal memory ?

Arduino Interfaced with motors, heaters, etc.

Iron

control the soft robot by using a control algorithm

Iron

We're now on slide 9.

Blogger

@Soft robot method: I always wanted to investigate the use of micro solenoids interconnected as a mesh to emulate a functionality of a muscle. If the mesh is further encapsulated into a rubbery material, it can be contracted using Arduino to play with those solenoids. This idea is Luiz Costa copyrighted 2014. :0)

Iron

Describe a control method in which the Arduino can operate a Soft Robot?


It can read the sensors and control the actuators.

Iron

Switched from chrome to using IE and still have several intro once I log into chat.  Then intro kind of quits.

Use Arduino to control sensors within 'soft' framework.

Iron

FlexBot - Analog out excites elctrically-flexed material.

Iron

Control of a robot such that it would be consided soft requires the processor to recognize its surrondings and adjust the motion output to compensate for the presence of a hard or soft object.

Iron

Arduino could use a tactile sensor as the input to a control loop to help a servo driven arm locate a part.

Iron
Arduino usage for soft robot would be pretty much the same as for a hard robot control, with additions for sensors of the shape of, or forces on, the soft parts.
Iron

Arduino providing a control algorithm to be used in a soft robot

Touch sensors to determine touch, contact,etc (AD or digital)

Vision recognition to detect objects or obstacles

Soft robotics  to assist in an kitchen to mix materials, or cook - temperature sensing -  using dedicated articulated controls to use in mixing materials.

 

Iron

Perhaps youshould also try to confirm the issue with IE8...

Iron

Arduino would need both control and feedback paths to control a robot.

Iron

Some of these materials  that change shape with current are available from Jameco

Too late for us to listen live. Switching to another browser after the show is over doesn't seem like a good solution at all.

 

Iron

Use a buffered PWM output to vary the current through a niton wire.

Iron

Arduino operating a soft robot: controlling piezo-electric actuators.

Iron

Soft Robot -- use Tactile  (dorce) sensors in groppers etc.

Iron

IE ok but chrome. No audio bar in IE.

Iron

@StephMG MS installed updates this morming in my machine. There has to be something with FLASH  ADobe and Chrome. Unfortunately, I dont have IE or firefox. I'll wait for the archived version.

Iron

1. By applying a voltage (DAC?) to the synthetic muscle

2. If the movement is pneumatic, by controlling a valve system

We're now on slide 8.

Blogger

Talking in terms of robotics it could be used to move the robot in response to a visual input to score.

You can use one of the materials that change shape with electric current to actuate something.  These materials are like steel, so for the "soft robotics" aspect, you would need to cover the material with a soft covering.

Repetitive activities

Iron

for those of us without audio, can someone post the questions that Don asks? 

Control methods:

Loop with timers

State machine

interactive with user control

autonomous action based on sensor inputs

pneumatics could control a soft robot. arduino controls an air valve for on/off or forward/reverse motion. variable pressure with return spring for positioning.

Iron

i don't hear the audio of day 4. i always hear, repaetedly 'last told radio

Iron

Live broadcast is not working - Repeating intro over and over  I have tried 3 browsers and 2 computers with the same result.

 

Iron

Arduino can one or more servomotors that can be used to support robot movements

Iron

It would be cool to mimic a bird, such as an ornithopter.

Iron

Question 1: Perhaps the Arduino could pull wires to flex the worm. It could also use air pressure.

Gold

FLASH problems w/ Audio

Iron

don's? motor control.. ect...

Q. control method: PID

Iron

Remote processing of data, remote control, remote reconfiguration of soft components.

Iron

Tensile feedback from the soft element can detect interference and cause the item to stop or withdraw as commanded by MCU output

Iron

Control of the "muscle" replacement

Iron

PWM can be used to activate piezo elements that will bend under stimulus.

Iron

IE started loopin on me and I switched to Firefox

 

Iron

We have confirmed an issue with Chrome and our techs are looking into it now. Please use IE or Firefox to listen in today.

Also just hearing intro.  How do we fix?

 

Iron

implement a PID controller driven by sensor inputs...

Iron

Use a servo controlled by Ardino to contract the arm shown in the photo.

Bronze

We're now on slide 7.

Blogger

intro is playing over and over.  Can't hear the actual presentation.

Iron

Chrome audio looping on intro here too (worked yesterday).  IE9 audio on Win7 seems to work for me.

Iron

This is most annoying. I have missed the whole talk because the audio track keeps saying "blog talk radio" over and over again.

 

Iron

Good afternoon all.

Stan B.

 

Iron

I've never had any issues up until today.  Chrome is looping, and like others, IE8 does not even show the player.

What is the name of the Webnar product you use -- SO THAT i CAN AVOID IT!

Iron

tried restarting chrome to no avail.  Has worked all week and have had no updates applied.  I'll have to try listening to the archive later.

Iron

I had to use IE from Chrome

Iron

@luizcosta:  just zoom in on the page and you can read it fine. 

@Rob: Sorry, I didn't realize that the link is exactly what I's looking for.

Iron

Don's question:

Describe a control method in which the Arduino can operate a Soft Robot? 

Blogger

i don't hear the audio of day 4. i always hear, repaetedly 'last told radio'

what must i do ?

i started already the pc. smae problem.

Iron

I got an update yesterday and today no audio, no player at all.

Iron

Would NITINOL wire actuators fall within this category of components?

Iron

the intro keep playing over every once in a while.

Iron

@Rob: Slide 7 with the publication references (caterpillar on the top left corner) is not readable. Can it be e-mailed to us

Iron

Nope not there for me

Iron

Some labels on these examples will help.

Iron

No audio player visible.

Iron

looping again now

:(

Iron

I suspect the audio problems are with FLASH, MS installed updates onto my machine this morning. Now - no audio with Chrome or Firefox.

Iron

It works in Firefox, finally.

Iron

@otpw - Your company may be blocking the live stream. The archived version will be available right after the lecture ends on this page. People don't experience any issues when listening to the archive version.

the player is at the top of the page under the title of today's topic

Iron

No audio for me either.

Iron

No player visible in IE8 here also

 

Iron

IE 11 is working fine.

Iron

Neither Chrom nor EI work for me still looping.

Iron

Good audio with Firefox here

Iron

I have only chrome. It has been was working fine for me up to yesterday and rest  of the season.

Iron

We're now on slide 6.

Blogger

No player visible in IE8

Iron

Try hitting the pause button followed by the play button

Iron

No audio in FF or IE here

 

I agree with Rauf_Dunam 

We have confirmed an issue with Chrome and our techs are looking into it now. Please use IE or Firefox to listen in today. Unfortunately, we can not restart a live stream.

Audio did not work with Chrome or IE for me but Firefox is working.

 

Greetings from Denver. Had to switch from Chrome to Firefox browser because the Lost Talk Radio sound kept repeating over and over.

Iron

neither IE nor chrome work

 

Iron

Chrome was looping -- Firefox is OK

Hello from sunny SE Lake Simcoe Ontario Canada.

Iron

Haven't had a problem with audio on Firefox...but I'm using Linux so that could be why everything is fine :-)))

 

BTW, anybody using IE is telling the world, "I want your viruses & malware & bots to run on my machine! COME AND JOIN ME!!!"

Iron

explorer works as well

Iron

Someone please restart the session on DesignNews end.

Iron

If audio is looping for you, please try a different browser. Looks like most people are doing fine with IE and Firefox.

It seems to work after switching to firefox

Iron

Looping seems to be with Chrome.  Switched to IE and audio is fine.

Iron

Audio keep looping. Andy solution?

Iron

dont have firefox Chrome still loooping

 

Iron

We're now on slide 5.

Blogger

Hello, sorry for being late:the Design News website is very slow to load for us, after it has logged me out

Iron

Audio working on FF.

Iron

Works in Internet Explorer, but not in Chrome

In Chrome, just repeated intro.  In IE I don't even get the audio play object

Iron

intro looping here every 20-30 secs

 

Iron

Switched to Firefox and all is well.

Iron

Nope, switched to IE and the intro keeps interrupting. Well, maybe it stopped now. Nope, Blog Talk Radio still interrupts every 5 seconds.

Gold

I am having the problem with Chrome.

 

Audio still OK here, using FireFox

Iron

Audio is excellent here. Best all week

Iron

Makzine is how its spelled?

Iron

No audio - worked yesterday

Iron

chrome keeps looping audio, no resolution. FF OK.

Iron

No Audio Player today, even after logging out and back in.  It was there the previous days.

Iron

You have to have these three books in your cart before the coupon code will work (links will open in new windows):

Learn Electronics with Arduino (Don's book)

Arduino Projects to Save the World

Beginning Arduino Programming

After the books are in your cart enter the coupon code:  330ARD

Iron

"Long talk radio" over and over

Iron

Intro loop seems to be Chrome issue

Iron

I am using FireFox with no audio problem

Iron

Refresh doesn't fix it

We're now on slide 4.

Blogger

I logged out completely and came back in and the intro is still looping.

Iron

it's "blogtalk radio"

Iron

Keep hearing "Lost Talk Radio" over and over.

Iron

Doesn't work in Chrome or IE 

Iron

Audio is totally uncomprehensible

Iron

Tried restarting browser, but audio is still looping

Iron

Cannot here Don, only LapTop radio

 

Iron

No Audio "Lock Talk Radio" keeps repeating

Iron

Audio OK here... using IE

Iron

seems audio stream is blocked by corporate firewall :(

 

Iron

Refreshing might help in audio, also check if you have two sessions of the browser open.

Iron

refreshing browser doesn't fix audio loop

Iron

intorduction keep looping.

Iron

Chrome is experiencing an issue with the audio today. If your audio is looping in Chrome, pls try FF or IE. It's working great in FF and IE for me.

My audio is doing the same thing that john.evans reports.

Iron

Hello from Detroit, MI area.   

Can't hear Don over 'Lost Hope Radio' intro!

Iron

Not getting any audio here either, just the intro in a loop

Iron

I'm getting 3-4 copies of the audio

 

Iron

chrome is looping. use Fire Fox

 

Iron

Just getting repeted intro on audio here

Iron

Just continual repat of Laptop Radio

Iron

Hello from Upstate NY!

 

Iron

Lock port radio keeps repeatiing

Audio is broken in and out.

Iron

we have to eliminate the intro sound by using Arduino Skectch...

Iron

aaaudio announcement is in a continuous restart cycle.

 

Iron

Audio is repeating intro continuously

Good morning everyone. No audio???

Iron

no problem with audio here

Iron

Joining from Canton, Ohio

Bronze

We're now on slide 3.

Blogger

Good day to everyone.

Iron

We're now on slide 2.

Blogger

Hi from Sacramento, CA

 

Iron

If your audio is looping, pls refresh your browser or try FF or IE. It's working great in FF and IE for me.

Hello from Pittsburg

Iron

same here. Blog Talk Radio is in a loop

Gold

Yeah introduction Lock Talk Radio keeps repeating

 Lost Hope Radio :->

Iron

Hello Everyone from Summerville, SC

Iron

Hello from Salt Lake CIty, Utah

Iron

problems with audio - repeting a 3sec sequence. Any idea?

Iron

We're now on slide 2.

Blogger

you guys! the sound is OK?

Iron

Hello from SW Michigan

Iron

We're now on slide 1.

Blogger

Truly and international crowd!

Iron

Love talk radio announcement is repeating over and over.

 

Hellow from Habib UK

Iron

The intro keeps looping...

Iron

endless loop on intro

Iron

sound repeating...

Iron

Hi all -Audio is live! If you don't see the audio bar at the top of the screen, please refresh your browser. It may take a couple tries. When you see the audio bar, if it doesn't start automatically, hit the play button. If you experience audio interruptions and are using IE, try using FF or Chrome as your browser. Many people experience issues with IE. Also, make sure your flash player is updated with the current version. Some companies block live audio streams, so if that is the case for your company, the class will be archived on this page immediately following the class and you can listen then. People don't experience any issues with the audio for the archived version.

Hello from nagpur, India.

Hello from Calgary Canada

Good morning everyone from California, USA.

Iron

good morning richmond, BC

 

Iron

hello everyone from Timisoara

Iron

Hello from El Dorado Hills CA.

Iron

I'd like to know about the ebooks too.

Iron

hello from Dallas, TX....

Iron

Hello from Binghamton, NY

Iron

Hello again from Southeastern Rainy Indiana!

 

Iron

Hello all from rainy Montréal, Québec

Iron

Hello from Oakdale, MN.  And i'd like to know the ebook details also..

 

Tried the circuit from yesterdays lession. Worked great.

Iron

I would like to know about the ebooks.

Iron

Hello from Ham Lake, MN

Iron

Cloudy, foggy New Jersey here...

Yes would like detail son Don's books - please post

 

Iron

Hello from Millington Michigan

Iron

You can get Don's book plus two other Arduino books from Apress in ebook format for $30 through 6/14.  Let me know if you want the details; the details are not available on Apress' website.

Iron

@danlafleur:  Thank you...   I could be having that issue. . .   :-)

Iron

Hi from Quebec City.

Iron

Hello from Sedoan AZ

 

Iron

Hello from western Pennsylvania

Iron

Hola desde Tijuana Mexico

Iron

Hi from Juarez Mexico

Iron

Hello from Minnesota

 

Iron

@Mar, I have the Arduino IDE running on a Win8 tablet. Works great. I did have trouble with having two different IDE versions installed though.

Iron

Hello from Longmont, CO

Iron

Hello from Delavan, WI.

Iron

Hello from Albuquerque.

Iron

-The streaming audio player will appear at the top of this web page when the show starts at 2 PM Eastern time today. If the audio doesn't start automatically, click on the play button to start it. Note however, that some companies block live audio streams. If when the show starts, the audio bar doesn't appear or you don't hear any audio, try refreshing your browser. If that doesn't work, try using Firefox or Google Chrome as your browser. Some users experience audio interruptions with IE. Also, make sure your flash player is updated with the current version. If that doesn't work, your company is likely blocking the live stream. The class will be archived immediately following our live taping and you will be able to listen to it then. You shouldn't experience any problems with the audio when listening on-demand.

Blogger

Good afternoon from Valladolid, Spain

Iron

Greetings from Merlin OR

hello all from Edmonton, Alberta.

Iron

-Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Blogger

It's a beautiful day in Swartz Creek, Michigan. Hope your day is at least OK.

Iron

Good afternoon from South Florida

Bio mimic. As in reproduction, respiration, elimination ?

Hello again from still raining in CT

Iron

Signing in from COS

Iron

Greetings and felicitations.

Iron

greetings from slc ut..

Hello from sunny Montana

Gold

Greetings from NJ.

Iron

A rainy hello from Fort Collins, Colorado.

Iron

Hello from San Jose, CA

Iron

Hello from the Windy City

Iron

hellow from guadalajara!

-You are eligible to earn IEEE Professional Development Hours by attending these courses and participating in the chat function. Additionally, we are no longer using the points system, offering "graduation", or giving grades. The IEEE hours are taking the place of that. There are some important things for you to know about earning the hours. The most important ones are that you need to attend these courses live, you need to attend a minimum of two of them per semester, you need to fill out a course evaluation form within 2 weeks of the end of the class, you need to attend 4 out of the 5 classes per course, and you need to participate in the chat function every day you attend. Please click on the link at the top of this page that says "How do I earn IEEE professional development hours" to read all of these important details and more.

Blogger

Hello from Hudson's Hope BC

Iron

Hi All - see you in 1.5 hours.  Audio will start then.

Iron

did not get any sound

 

hello, from Detroit, Michigan

Greetings from Scottsdale, AZ

Iron

-Please join our DesignNews Reader Network Group at http://bit.ly/dnlinkedin and tweet about today's class using #DNCEC.  You can also follow Design News on social for the latest class information = Twitter: http://bit.ly/dntwitter ; Facebook: http://bit.ly/dnfbook ; Google Plus: http://bit.ly/dngoogleplus

Blogger

Hi from NJ!    Thank you Don, Rob, Chat Participants... all.... 
FINALLY took the Uno out of the box and connected it!
Havin' a bit of issue getting the IDE working on my Windows 8, but
little by little is the motto these days!  Thank you!

Iron

Summer Rain - luckily I work indoors and only get wet at the start and end of the day ;-)

Iron

Hello from Albuquerque, New Mexico,

Blogger

-Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY and be sure to follow @designnews and @DigiKeyCEC on Twitter for the latest class information. We encourage you to tweet about today's class using #DigiKeyCEC.

Blogger

Ha! First one here today. Hi from the 12th floor of the Acme Bldg, in New York!

Iron

Thought I'd download presnetation ahead of time...

Iron


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