JONA ROV has been experiencing major power stability problems with its 5V system. I’ve been attempting to isolate and solve the problem for… a while, and I’m still not really any closer to solving it.
The new Power Distribution Board is done and it has quite the janky capacitor+diode addition to it. I can’t really tell if the capacitor is helping much, though.
I tried adding some capacitors to the 5V system and they do help, but they also make turning the ROV on a bit of a hassle. The RPi5 is fussy with how it receives power and the capacitors interfere with it turning on smoothly. I ended up adding a 2.2mF capacitor and a 2.5F supercapacitor.