Original thread:
http://www.chiefdelphi.com/forums/sh...d.php?t=147470
MVPWM-102 is a FRC motor controller tester similar to the AM Thrifty Throttle, featuring a 0-100% knob-adjusted forward and reverse and powered by Micro USB (android phone charger cable) or direct 5v power.
Due to fabrication limitations, I cannot implement the Talon SRX power in this revision (although I'm looking into alternative ways to do it).
Boards are $4.82 each to make not including the Talon SRX header (that makes it $5.59) or shipping. Please answer the poll on what you would pay for a product like this. I'm not aiming to make money, but I do want to be able to offer this to as many teams as I can. With that in mind, I'll be releasing the design files for both a surface-mount and a through-hole version (which is slightly more expensive, around $7 not including shipping) once I test to see if the Talon SRX header can be used. PM me if you would like the current design files.
Nerd facts: pulse high time tolerances are +/- 2us on average when the potentiometer is held still, about a 0.4% power variation, with a range of 700-2300us (slightly larger than the normal 1000-2000 range, but this is because of potentiometer limitations). Much better than I expected.
You can see a video of it outputing pulses here:
https://youtu.be/rlQgoI_rx1o
The numbers on the screen are in microseconds, and change as I turn the potentiometer up and down.
Please reply below if you have any comments or reasons as to why you would or would not use this.
