SIM800L power saving question


#1

Hi, I have one of these sim800L modules. My question is…im trying to get my project to save some battery power by putting my nodeMCU to sleep, but the sim800L still have a flashing red light. Any idea to disable the light? The module gets power from the nodeMCU

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#2

Hi,
The NETLIGHT will always blink every 3 seconds when connected to network even if its in sleep mode. The current is negligible. You can check in AT commands guide, i think there is a command to disable the netlight.