Electron deep sleep not working after first power up

[rickkas7]

Yes, that won't work right. The problem is in SEMI_AUTOMATIC mode on cold boot the modem is somewhat powered up, not fully powered and operational, but not asleep either.

Putting the modem into SLEEP_MODE_DEEP requires that the modem be on in order to send the AT commands to it, which is why you're not going into deep sleep.

The workarounds are listed here:

Electron SLEEP_MODE_DEEP tips and examples

It’s a little confusing getting an Electron to go into deep sleep, using the 130 µA that it should. These six annotated code examples should hopefully clear things up. All tests were run on 0.6.0 on a Electron G350. AUTOMATIC, no system thread #include "Particle.h" void setup() { } void loop() { // Results in 133 uA power consumption // Modem is turned off, full cellular resync after restart (blinking green, blinking cyan, fast blinking cyan), 5-6K of data usage System.sleep(SLEEP_MODE_DE…