ESP32 to power 1.2v external circuit

ESPHome
1

I have a solar powered novelty balloon which has a small solar panel, a 1.2V battery and a small circuit board. I’d like to bypass the solar
panel and just power the external board with 1.2(ish) volts. I’ve been so far unsuccessful in either powering the circuit board or measuring anything more than 0.03v across Pin32 and 3v3 with the following esphome config:

light:
  - platform: monochromatic
    output: Pin32
    name: Pin32

output:
  - platform: ledc
    pin: GPIO32 
    id: Pin32

Am I missing something?

2

Why do you want to power it from a GPIO?
I doubt it will work since the max current from a pin is very small.

Edit 20 mAh is what you safely can get from a pin.

3

Sounds like russian roulette between your esp32 and circuit board!
Present more info about that circuit and maybe we can help

4

It’s possible the 1.2 is boosted to 3V on the circuit.

5

I have a small lighthouse that has a rotating light (motor+led). It’s solar powered with a 1,5V battery, and I wanted to make it controllable via esphome. I took away the circuit and realized that the motor was using 1,5V and the circuit boosted the voltage to 3V for the led as Spiro said.