Early PWM board...

A project log for Short Stack

A small cubiform stackable development platform.

Charles AylwardCharles Aylward 11/09/2015 at 06:311 Comment

A hitherto untested medusian PWM board sent off to OSHPark. For servo power, one can connect a JST PH connector, 3.5mm terminal block, or vanilla 100mil header. An on-board LDO powers the PWM IC from the bus power connection or the 100mil header breakout. Its enable pin is routed out to the bridge connector (PA02). Current configuration does not support an external oscillator. I2C lines are broken out at the same location as on the controller board (I2C is part of the bridge connection). Solderable 0603 jumpers exist on the back side for I2C address configuration. Presumably can dissipate 400mW :)

I laid this out rather quickly so I might make some changes after experimenting with the first cut.


Craig Hissett wrote 11/10/2015 at 17:21 point

This project is getting better and better!

Using this board and the control board you could provide full control over a robotic arm, in a package so small it easily fits inside or can be mounted discreetly.

Christ, with bluetooth or an ESP8266 added you would be able to turn many a tethered project into a standalone device. The ESP8266 could even run a webserver-based remote control for easy wireless control.

I am far too excited about your project, and I can only apologise.


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