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Pin 4: GND Ground
It is often referred to as “PIR”
Developers & Educational Institutions
Pro Micro 5V 16M compatible with Arduino
and maker applications
Single Cell Lithium Battery Boost Power Module Board Lolin Pin 4: GND GroundSingle Cell Lithium Battery Boost Power Module Board The single cell power board Support FCP voltage and current output protocol. Support Qualcomm QC2. 0 3. 0 classA 5V, 9V, 12V voltage output. It automatically recognize FCP and QC2. 0 3. 0 fast charge protocol. The single cell lithium battery power module is a high power density, fully integrated boost converter with an 11m? power switch and a 13m? rectifier switch that provides an efficient, small