User's Manual

7/13 Rev1.2
4. Power Input
MESSI-V M2 power input pin is VBAT. The power input range is from 3.4V to 5V with
USB, external power or Battery. Figure 4-1 shows external power source to MESSI
module.
Pin NO.
Pin name
Description
2
3.3V
Power input
4
3.3V
70
3.3V
72
3.3V
74
3.3V
Figure4-1: External power for MESSI-V M2 board.