Dear All,
everything is going pretty well and I love the Electron.
But currently I’m observing some peak current draws while sleeping.
System mode is set to semi:
SYSTEM_MODE(SEMI_AUTOMATIC);
and I (currently) never connect to cloud or 2g (LED is never green)
I go to sleep with
System.sleep(WKP, RISING, 30, SLEEP_NETWORK_OFF);
and I still see some current peaks about every 900ms:
Anybody knows what this is?
@derchris does that graph only represent the current draw from the Electron? Are there any other peripherals or sensors connected to that power source/graph that might draw power? If there are, are those peripherals connected directly to the power bus or via an Electron power pin?
@ninjatill It represents the Electron’s current draw w/o any peripherals attached
The first time you cold boot an Electron in SEMI_AUTOMATIC or MANUAL mode you need to turn the modem on before going to sleep. This is counter-intuitive, but putting the modem to sleep is done by sending AT commands at it, so if you don't turn it on, it stays half-awake because it doesn't get the command to sleep.
Note that you only need to do this on cold boot. I use a retained variable to know this. If the modem was previously asleep it will stay asleep.
This post is for SLEEP_MODE_DEEP but it also applies to stop mode sleep with cellular off.
