3 ms·
I guess you could toggle wifi on and off to conserve power. The S3 uses about 20mA without wifi, which isn’t too bad. It’s on par with the Pi Pico and Arduino N
by steve_adams_86 4y ago
I guess you could toggle wifi on and off to conserve power. The S3 uses about 20mA without wifi, which isn’t too bad. It’s on par with the Pi Pico and Arduino Nano Connect as I recall. They all guzzle power when wifi is enabled, otherwise idle fairly low and peak around 80-120mA depending on processor power.
- jareklupinski 4y agoi just finished an esp32 design with incredibly aggressive power savings as the primary goal it saves persistent variables to non-volatile storage and deep-sleeps at 15-20uA according to my power profiler 2, waking up on a timer when it wakes up, connects, checks battery, and updates display, it can peak 350mA, but mostly stays around 100-150mA while it works
- steve_adams_86 4y agoAwesome, I've been curious about deep sleeping. How long does it take to come back online?
- jareklupinski 4y agoCorrelating to current measurements, my first Serial log shows up almost as soon as I can see the current spiking from waking up (within a half-second) I haven't timed it super precisely (my off-state is 30 min and my on-state is 4-5 seconds), but definitely going to check this for thoroughly in my next project, which will wake from deep sleep on button press; curious if there's some delay as everything powers on.