We’ve been noticing static electricity discharges from our robot whenever we’ve been driving for long enough, and a metal part touches a metal field element.
Based on experiments the static seems to be building up while driving around. Sitting still and cycling the intake/shooter doesn’t accumulate charge.
We’re driving on 6" colson wheels, on carpet that should be remarkably similar to field carpet. 4 NEO drivetrain through WCP flipped gearboxes, versablock mounting system…
The real issue, other than the surprise electroshock therapy: sometimes the discharge appears strong enough that our radio briefly stops communicating. Not a full reset or reboot on the radio, just disconnects from the roboRIO and our PI vision processors for about 15 seconds, then reconnects. We’ve done this at super low speeds, or by just barely grazing a metal robot part against another piece of metal - based on this I’m entirely convinced it is indeed the audible and visible static discharge, not some mechanical jostling of loose wires.
Frame to battery impedance is effectively infinite (beyond what any meter we have can read).
We’re considering dragging a fabric grounding strap on the ground, and putting ferrite beads on all wires leading to the radio.
Anyone dealt with something similar before? I saw lots of 2009 posts about it, but not a ton of “here’s the silver bullet fix!” Any other root causes or mitigations folks can think up?