Hi, i can successfully shutdown and restart the Seeed XIAO nRF52840 via GPIO (Pulldown) switch pushes. nrf_gpio_cfg_sense_input(digitalPinToInterrupt(2), NRF_GPIO_PIN_PULLDOWN, NRF_GPIO_PIN_SENSE_HIGH); delay(2000); NRF_POWER->SYSTEMOFF = 1; Being connected to a 280mAh LiPo battery, i measure a c…

Hi eric, There are limits to how much current can be reduced with “mbed”, but the following post #13 may be helpful. [image] System_ON_Sleep of XIAO BLE XIAO I got information from hobbya and daCoder about the on-chip DCDC converter and on-board flash memory. I have trie…

Hi @msfujino thanks for pointing me to this thread. I had made a problem myself. I’ve used two RGB with internal controller (WS2812 / PL9823). When turning the color to black / disable them, the controller still consumes about 1mA permanently. After going in sleep mode, the 3.3V remains on and po…

XIAO nRF52840 Sleep SYSTEMOFF and flashTransport command

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msfujino June 10, 2023, 9:59pm 2

Hi eric,
There are limits to how much current can be reduced with “mbed”, but the following post #13 may be helpful.