Grounding of the RJ45 Shielding Connectors to Reduce EMI

[boxomatic]

@robomaniac

1. Solder chip select to ground on encoder board

What do you mean solder chip select to GND on encoder board? I don’t see any chip select on that board, the AS5600 is I2C.

Sorry, my mistake in terminology. It’s not chip select but the direction pin. It’s currently floating on the PCB, though looks like it’s grounded in the schematic?

Basically since it’s floating people are have instances where the motors are running in reverse.

Push to extend bug?

I have a new theory: [image] The encoders have a direction pin which can be used to set which direction of rotation is the positive direction. I left that pin unconnected because we didn’t need to change direction, but that was bad practice. I should have tied it to something to ensure that it couldn’t float around. My current theory is that something in your environment is causing that pin to get pulled up sometimes causing the encoder to switch directions. I’ve just sent you a second set …