4 ms·
Seems perfectly in line with what I can glance at on the MCU's datasheet.
by jdiff 3y ago
Seems perfectly in line with what I can glance at on the MCU's datasheet.
- steve_adams_86 3y agoIt's in line, I think it might seem high because there are well known microcontrollers which can deep sleep with µA-level current. For example, the ESP32 consumes 0.15mA if the the ULP processor is on, and 10µA if it's off. I'm pretty sure the STM32WB can go as low as 2µA though. If I recall correctly it has STOP and STOP2 instructions, with the former being what FlipperZero is using and the latter requiring even less power. I think it's really complicated to manage the deeper sleep state and the radio with STOP2 though, and that might be why they stuck with STOP. (edit: whoops, they cover this and more in their write up)