battery power supply

[jeslielop]

hello, I am jesus lieras, esp32 works usb, but it does not work battery 3v CR123 connected pins GND and VIN, someone could help me please, I have esp32 devkit module.

[ESP_Sprite]

3V is too low for Vin. You may have more luck connecting the CR123 on the 3.3V pin. Note that this still is not guaranteed to work, it's dependent on the current capacity and discharge curve of the battery in question.