My egg bot is somehow buggered. Bruce generously gave me the frame, and I’ve been trying to get the circuitry to work. It’s clearly been about a decade since I tried to think coherently about electronics.
Back to trying to figure out where my 5 volts are leaking out of the system. I put in 12V from the power supply, regulate it down to 5V for the control logic, and run the motors off the 12V stream. As soon as I plug it in, it drops to about 7V. Gah. Debugging hardware is much trickier than software, at least for me.