Charge LED pulses when no battery is present
Posted: Wed Dec 26, 2018 7:53 pm
I am using a clone of the Feather/Huzzah shown in the schematic here:
https://github.com/pantaluna/esp32-mjd- ... ematic.png
When I power the circuit via the usb port and there is no battery connected, the charge led pulses. With a battery connected it is steady bright when a less than charged battery is connected; with a charged battery, the LED is less bright and steady.
At first I thought it might be something with the external 3v circuitry I was powering. So I rigged a separate 3v supply for the external circuitry. This made no change in behavior.
Note: the external circuitry responds correctly to the program that is running, battery or not.
Any ideas on what might be going on?
https://github.com/pantaluna/esp32-mjd- ... ematic.png
When I power the circuit via the usb port and there is no battery connected, the charge led pulses. With a battery connected it is steady bright when a less than charged battery is connected; with a charged battery, the LED is less bright and steady.
At first I thought it might be something with the external 3v circuitry I was powering. So I rigged a separate 3v supply for the external circuitry. This made no change in behavior.
Note: the external circuitry responds correctly to the program that is running, battery or not.
Any ideas on what might be going on?