Setup Guide

02nerdonic.com
Exen Mini - Pinout
POWER
GND
DIGITAL
ANALOG
PWM
SERIAL
I2C
PIN ID
5V - MICRO USB
3.3 - 20V
3.3V
SCL / PA23SCL
SDA / PA22SDA
0 / PA11RX
1 / PA10TX
A4 / PA05
A3 / PA04
A2 / PB09
A1 / PB08
RESET
POWER LED PROGRAMMABLE LED
SWD HEADER
8 / PA06
SWCLK SWDIO RESET 3.3V GND
3.3-20V INPUT
REGULATED TO 3.3V
3.3V INPUT OR
REGULATED 3.3V OUTPUT
A1 / PB08
Use the pin ID in the diagram above to refer to that pin in the Arduino IDE.
Each pin ID consists of 2 numbers, for example:
The first part (In this case = A1) is the pin ID to use in the Arduino IDE.
The second part (In this case = PB08) is the pins port number. In most cases
you wont need to use the pins port number, however in certain situations using
the port can be useful.