Schematics ? #1709
Replies: 4 comments
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Posted at 2016-12-07 by Ollie Can't help with schematics, but re motors.. @allObjects recently pointed me in the direction of "H-bridge" circuits. It was a good steer. |
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Posted at 2016-12-07 by artag Thanks, I'm fine with driving them, it's where to connect them. Are all the pins capable of PWM, analog in etc. ? I suppose I could experiment but I like cold, hard, data :) re: H-bridges - the large boards used by Arduino projects may be OK, but for the small devices that might get used with the Puck, I want something miniature. I recently came across the L9110S devices from China : typically packaged on a PCB as two full h-bridges at 0.8A for as little as £1 on ebay. Perfect for a little robot. |
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Posted at 2016-12-07 by @allObjects ...yes indeed... that's what you can use... it heavily depends on what type of motor you have in mind... stepping or continuously running motors... if you need no reverse on a motor, a plain driving (Darlington) Transistor or MOS FET does it. |
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Posted at 2016-12-08 by @gfwilliams Hi - I'll post schematics up soon, but basically: The pins (and some pads) on the board are labelled as D0,D1,etc - you can just use that directly in your code, so I2C/SPI/UART/PWM/OneWire can work in any combination on any pins. The numbers correspond directly to the nRF52's pins, so for more info you can look on the chip datasheet if you need. The actual pin holes on the board mostly support analog in - but try with analogRead - it should complain if they don't. Right now:
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Posted at 2016-12-07 by artag
I'm looking for hardware information : I want to drive some motors from my puck.js. (Yes, I know I can't drive them directly off the pins).
Perhaps also connect i2c or analog devices.
Where can I find schematics, please ?
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