esp32 WiFi does not work with battery power
Posted: Mon Feb 05, 2024 5:03 pm
Hello
I am developing a project that employs either a DOIT DEVKIT or ePulse Feather esp32 board. The project relies on using WiFi to communicate to a Raspberry Pi. I would like to power the board entirely by battery, preferably rechargeable NiMH AA batteries. Currently I am using 4 in-series AAs via an LDO that feeds the 3.3v pin.
However, when powered by these batteries I am not getting a reliable WiFi connection, but if I power the board from my PC via the USB it connects immediately. I have tried also feeding 5v to the VIN or USB pins but no luck.
So there is something going with the WiFi chip that I don't understand. I would appreciate any suggestions how to get it to consistently work.
- Jack
I am developing a project that employs either a DOIT DEVKIT or ePulse Feather esp32 board. The project relies on using WiFi to communicate to a Raspberry Pi. I would like to power the board entirely by battery, preferably rechargeable NiMH AA batteries. Currently I am using 4 in-series AAs via an LDO that feeds the 3.3v pin.
However, when powered by these batteries I am not getting a reliable WiFi connection, but if I power the board from my PC via the USB it connects immediately. I have tried also feeding 5v to the VIN or USB pins but no luck.
So there is something going with the WiFi chip that I don't understand. I would appreciate any suggestions how to get it to consistently work.
- Jack