I’ve been having some trouble setting the current limit of my driver. I’ve watched the video on the product page a hundred times but it seems my driver doesnt work like the one in the video does.
When I place my multimeter on potentometer and start turning it clockwise, Vref doesnt change then suddenly itll drop down by 100mV. When I turn it anti-clockwise, same thing happens except the voltage jumps back up. Vref also doesn’t increase past 300mV. Sometimes it’ll stay at 260mV until it suddenly decided to jump back up again to 300. No amount of turning seems to help and the behaviour is completely erratic.
I’ve checked my soldering connections with the multimeter and they’re fine. However, the enable pin is not completely low - its at ~300mV. i dont know why this is, ive checked for shorts and there apperas to be nothing. the driver is also meant to have a 200k internal resistor on enable so it should be low by default. also, Vmot is not powered on, but I saw someone in another post say that it should be? Please help!
PS. i dont know the specs or model of my motor but it was previously working fine with the DRV8834.