To light the way home after a late night cramming at the library, Christina and friends designed this smart bike light. Using two microcontrollers and powered by a battery pack that mounts to the bike's down tube, the device monitors both the bicycle speed (via Hall Effect magnet) and amount of daylight (via photoconductive cell). When dwindling light is detected during operation, the unit sounds an on-tone and exposes and turns on an array of white LEDs. A four-line LCD display indicates both status and speed.
Click here to download instructions for the The Vindicator XL Bike Light Smart Bike Lights Parts List
Amt
Part Description
Allied Part #
1
5V Battery
774-0610
1
Miniature speakers
623-2144
1
Photoconductive cell
980-0015
1
Instrument case
806-5050
1
4×16 character 1 cm, stn reflective
769-0119
1
Voltage regulator
263-0135
1
25V transistor
263-0319
1
Miniature sensor
642-2257
10
LED bright white
749-3330
1
Switch, None-on
676-3175
Additional parts required: PIC 16F84A and PIC 16F88 microcontroller; mini DCM pulse motor, generator, 60 tooth gear
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
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A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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