Guides
2
Guides · ESP32 low-power design
Low-power guides
Measured notes on running ESP32 boards from a battery: sleep modes, standby current, chargers and regulators. Every figure comes from our bench or the Espressif datasheet, and each guide shows how it was measured.
Language
EN
Test bench
DeepSleep dev board powered by MicroPowerCore v1.2, current measured at the board input
Guide index
ESP32 hibernate mode: 5 µA with the RTC timer only What stays powered, which wake-up sources survive, how long the chip can sleep, the code, and the bench that measured 4.9–5 µA. Sleep modes 4.9–5 µA DeepSleep dev board: flashing, schematic and comparison Why a bare ESP32 board sleeps at microamps, how to flash it without a USB-UART chip, and what every part on the schematic does. Boards ≈5 µABoards on the test bench
MicroPowerCore v1.2LiPo charger + 3.3 V buck-boost, 17–18 µA
€16.00
DeepSleep dev boardBare ESP-WROOM-32 board, ≈5 µA in hibernate
€5.00
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