ESP32-H2 SuperMini current consumption
Posted: Thu Sep 18, 2025 7:33 am
Hello everyone! I'm trying to find the most efficient power consumption formula for ESP32 microcontrollers, and after some research, I've chosen the ESP32-H2 SuperMini.
According to the datasheet, this microcontroller consumes no more than 10 µA in deep sleep mode, but after measuring the consumption with PPK2, I got ~880 µA. This board has a charger chip, which I successfully desoldered (as well as the LED), but the consumption changed minimally (~80 µA).
I highly doubt the LDO on the board is the problem. I have no idea why the consumption is so high, so I'm asking for your help.
Example program - Deep Sleep Example, which I used to measure.
According to the datasheet, this microcontroller consumes no more than 10 µA in deep sleep mode, but after measuring the consumption with PPK2, I got ~880 µA. This board has a charger chip, which I successfully desoldered (as well as the LED), but the consumption changed minimally (~80 µA).
I highly doubt the LDO on the board is the problem. I have no idea why the consumption is so high, so I'm asking for your help.
Example program - Deep Sleep Example, which I used to measure.