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FA33 Motherboard User Manual
CN18: SPI
CN19: UART
CN20: 5V output
Note: Current 1A.
*CN22: MB On / Off
*optional connector
Pin №
Name
1
+3.3V
3
MOSI
5
SCLK
Pin №
Name
1
+5V
3
RXD
Pin №
Name
1
+5V
2
GND
Pin №
Name
1
NC
3
GND
Pin №
Name
2
MISO
4
CS
6
GND
Pin №
Name
2
TXD
4
GND
Pin №
Name
2
On/Off
4
GND
19
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