Thanks, Beth, I'm working on documenting my work with directing a motor to do the output portion of this project. For now, I hope others see its usefulness as an input device to multiplex many inputs to a single pin. -- Jerald C
Yes, Naperlou, I tried using two photocells to find the brighter direction right/left. The trouble was that after the motor and photocells turned, they now found another decision -- go right or left. The motor turned erratically. I looked at charts of the sun's path and found that 110 degrees of east/west scan would be a useful range of solar energy for any latitude up to 49 degrees. 30 samples gives us 3.67 degrees of precision, so the the microcontroller could go to sleep for 3 minutes between scans. -- Jerald C
This could also be used for tanning. Either instructions could be given to the user, or a movable platform could be moved automatically. The microcontroller could allow one to add an audible roll over tone.
All kidding aside, it is interesting that Jerald found he had to use so many photo transistors, and that he had experimented to find the result. Good work.
I could have used Jerald's gadget a couple of weeks back when we were experimenting with solar lighting in a couple of gardens in the back yard. Took a few days (perhaps more since we did it in a good stretch of rain) before we got the small main panel situated properly. Jerald's invention could have saved us some serious time!
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
In a bid to boost the viability of lithium-based electric car batteries, a team at Lawrence Berkeley National Laboratory has developed a chemistry that could possibly double an EV’s driving range while cutting its battery cost in half.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.