Schematic of CEMARC V2
RXI
S2
S1
9V
C6
Capacitance
100nF
SDA
9V
3.3V
TX0
SCL
S2
9V
S1
C7
Capacitance
100nF
3.3V
9V
Servo1
Servo2
LD1117V3
U2
SW1