Enter ESP Deep Sleep
Power down most of the chip between readings.
What Deep Sleep Is
Deep sleep powers down almost the entire chip, leaving only a tiny timer awake. Current can drop from milliamps to mere microamps. 😴
Sleep, Then Restart
Unlike a pause, deep sleep clears most memory. When the ESP wakes, it restarts from the top of setup, just like a fresh power-on.
All lessons in this course
- Where the Power Goes
- Enter ESP Deep Sleep
- Wake on Timer or Pin
- Design a Battery Sensor Node