The voltage is 3.3v, i update the firmware with ai-thinker-v1.1.1 and it’s all ok.
Now I have another problem. I think I brick the esp.
I try to power with 6LR61 / 9V connected to RAW pin. Cactus work, but the esp, after the battery, stop to work and reply with garbage.
I thought I could power with a battery from pin Raw.
I try with nodemcu, write blank and after upload the firmware, nothing.
I try 1,1,1 , 0.9.5.2 and espduino firmware but nothing.
Is there any way to check if it is completely dead?