04-06-2015, 05:26 PM
(04-06-2015, 03:47 PM)Vinny Wrote: Sounds like he'll need a pull up on the arduino to make this measurement. Ed, didn't you use the same code?
He shouldn't need a pullup. The Arduino outputs are not open collector and they're capable of driving 40mA. The input to the driver is about an 18mA load.
I did use mostly the same code. I had to strip out all of the LCD and keyboard stuff and do some hard coding of variables.
Ed