On-board AMS1117-3.3 / AMS1117-5 power chip
Input voltage: DC 6.5 to 12 V
Output voltage: 3.3V / 5V switchable
On-board USB female socket， be used as a power input and USB power output
On-board power switch， convenient for power control
On-board M2 diode， effectively prevent the input across the reverse connection
High quality bread plate， special power supply module