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BGS5 current increase when using GPIO functionality | Telit Cinterion IoT Developer Community

July 8, 2016 - 11:41am, 1919 views

BGS5, preconditions: no USB connected, AT^spow=0,0,0, AT+CGACT=0,1, AT+CGATT=0

When enabling GPIO functionality by making at least 1 GPIO input (at^scpin=1,6,0), power consumption is increasesd by 7.5mA instantly, regardless if this GPIO is connected to something or not.

GPIO input is not attached to external pull-up/down resistors as BGS5 has internal pull-up resistor (thought to be around 14kohm). Current cannot come from that resistor, so where is it coming from?