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Topics - dr3x

1
Bus Pirate Support / BPv3.6 Getting Started - how do I identify the signal in a RC car controller?
Working on a project to programmatically inject commands to an RC car controller; I've opened it up (photos linked below):
https://photos.app.goo.gl/iiEfXgRKhvKzsiKk8

I think the most straightforward way is to tap into the signal wires coming off of the left/right and accelerator controls.  On the image they are the two sets red/yellow/black wires coming into connectors off the top of the PCB.

I measured the red/black voltage at 3V.  How would I use the BP to identify the signals on the yellow wires?

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