I’m using this module:
I’ve managed to reduce the power consumption to 9,55mA after removing the LED’s on the board and using the following codesnippet, but I’m confused about the power consumption.
void SIM900power() // software equivalent of pressing the GSM shield "power" button { digitalWrite(9, HIGH); delay(1000); digitalWrite(9, LOW); delay(5000); }
Even when I use the sleep command AT+CSCLK=2 it’s the same. I’m not sure, what consumes power on the board anymore, but is it maybe the low-dropout voltage regulator MIC29302WU?
I’m powering the Shield via the VBat with a 3,7 2500mAh Lipo battery. Can somebody else confirm, that the power is not 1.5mA, when the shield is powered off for the same shield?