Focbox Unity issues

[mr.shiteside]

@mr.shiteside

Got out today and at some point my throttle got very jerky - would engage and disengage very suddenly for a few seconds and then behave. I assumed it was a traction issue fighting with current control because there were wet leaves and poor surfaces around but then…

Throttle started slowly ramping up and not responding to the remote. No brakes, no idea if it was just going to keep accelerating, VX2 no longer showing battery reading from the board, pointed directly towards a river. Managed to turn onto a quiet pedestrianised road (and away from the river) with grass I could bail onto but at this point it was at 30-35 km/h and I’d have to clear some pavement before reaching the grass. Just before I was about to dive I decided to try powering down the remote, and thank the sweet FSM the board slowed down to a stop.

Sounds like a flaky UART connection, anyone want to make guesses while I’m opening it up?

I’m sort of in shock, this goddamn thing took out four high discharge 3S 8Ah batteries on its way out. Just destroyed a couple hundred euros worth of batteries, discharged to zero while sitting idle doing nothing. I had a xenigotchi logging everything that looks like it shut down 2 hours beforehand for some reason, so no obvious record of what happened