Product Data Sheet

15
D6
Digital
GPIO, can be used as PWM
16
D7
Digital
GPIO can be used as PWM
17
D8/MOSI
Digital
SPI MOSI, can be used as GPIO, can be used as PWM
18
D9/SCK
Digital
SPI SCK, can be used as GPIO, can be used as PWM
19
D10/MISO
Digital
SPI MISO, can be used as GPIO
20
D11/SDA
Digital
I2C SDA, can be used as GPIO
21
D12/SCL
Digital
I2C SCL, can be used as GPIO
22
D13/RX
Digital
USART RX, can be used as GPIO
23
D14/TX
Digital
USART TX, can be used as GPIO
24
RESETN
Digital
Reset input
25
GND
Power
Power Ground
26
+3V3
Power Out
27
VIN
Power In
Vin Power input
28
+5V
Power Out
Power Ground
4.3 Debug
Pin
Function
Type
Description
1
+3V3
Power Out
2
SWD
Digital
Single Wire Debug Data
3
RESETN
Digital In
Processor Reset
4
SWCLK
Digital In
Single Wire Debug Clock
5
GND
Power