UM982-EB User Manual
6 Power Supply UC-08-M31 EN P1.0.3
The availability of the ports depends on the firmware version of the UM982 module.
3 Power Supply
The power supply of the UM982-EB is input from the VIN pin, passing through a circuit
with surge protection and filter capacitors, to provide power for the 3.3 V LDO circuit and
5 V DC/DC boost circuit.
The input range of VIN is 3.2 V to 5 V.