The ADC code builds upon the USBVcom tutorial, which is recommended reading if you haven’t already. In this tutorial, we will make use of the onboard potential divider to read the voltage present at the battery connector. If you have a battery connected then this will be the current battery state, if not then it…

Voltage regulators come in two main flavours, linear and switchmode (DC-DC). The output of a linear regulator is always lower than the input, this may only be by a couple of hundred millivolts depending on the regulator but will always hold true.A switchmode regulator can have an output that is higher than the input (boost…