Z̈oé :antifa: on Nostr: npub1e2z26…yldaf you turn off all peripherals except for a single timer which will ...

npub1e2z26rv2fk5f9k8ex3xtu6whu5425u7dvn4ju40xr4hfve5q83uqyyldaf (npub1e2z…ldaf) you turn off all peripherals except for a single timer which will wake the CPU periodically, let say once per minute. Then you do deepsleep. STM32s with RTC are neat because those have a few bytes of always-on SRAM so you can shut down the main RAM too. But ATSAMD, RP2040, ESP32, can all be made very low power with the right tricks. The atmega MCUs are a bit dated and are easily outperformed by more modern ones.