Arduino Pro Mini Pin Configuration. Uno nano and pro mini it has pin 11 12 and 13 as spi s mosi miso and sclk signals but at the same time these signals are also available on those board s in circuit serial programming icsp header pin 4 1 and 3 except for pro mini which does not have a dedicated icsp header. The pins on the other two sides are an assortment of power and gpio pins just like the standard arduino.
The pins on the other two sides are an assortment of power and gpio pins just like the standard arduino. The arduino pro mini has the new pin called the raw pin. You can connect up to 12v to the raw pin and vcc will remain at a constant voltage.
Each pin can provide or receive a maximum of 40 ma and has an internal pull up resistor disconnected by default of 20 50 kohms.
The 14 digital input output pins can be used as input or output pins by using pinmode digitalread and digitalwrite functions in arduino programming. Note that on earlier pro mini boards the orientation of the 6 pin header may be reversed. The arduino pro mini has the new pin called the raw pin. Each of the 14 digital pins on the pro mini can be used as an input or output using pinmode digitalwrite and digitalread functions.
