PowerBoost 500C LBO lights LoBat LED when connected
So I tried connecting the LBO pin to an analog input on the Arduino, with the software checking the pin, and if it goes low, a normally-green bi-color LED, connected to two other pins, switches to red. But as soon as I physically connect the LBO pin to the Arduino - with power switched off, of course - the red LoBAT LED on the PowerBoost