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vshymanskyy / TinyGSM

A small Arduino library for GSM modules, that just works
GNU Lesser General Public License v3.0
1.93k stars 715 forks source link

TinyGSM Sleep mode? #218

Closed Bambofy closed 5 years ago

Bambofy commented 5 years ago

Hi,

Is there a way to put the SIM800L into a low power sleep mode?

SRGDamia1 commented 5 years ago

You can use the radioOff() function, which uses AT+CFUN=0 to put the module in reduced functionality or the powerOff() function which uses AT+CPOWD=1 to power it down. To use powerOff() you need to have connection to the PWRKEY pin to turn it back on. The SIM800 hardware integration guide has a log of information about the various power modes.