Powering NodeMCU from NiMh batteries
Posted: Fri Jul 16, 2021 4:32 pm
Hello everybody. I guess, I am going to raise the issue of powering ESP8266 for a hundredth time at least. I apologize for that. For a test, I am trying to power my NodeMCU from 3 NiMH cells, which output 2000mAH and 4.5V, through a LM2596 DC-DC converter, which outputs 3.31V. When I wire the NodeMCU, there is no reaction from it. Of course, I checked, it worked when powered by the computer. What is going wrong ?