44+ Arduino Uno R3 Pinout Diagram Background. The arduino uno has in total 14 digital pins which provide a maximum current of 20 ma. Six of the 14 digital i/o pins are able to produce a pwm signal.
The arduino uno has in total 14 digital pins which provide a maximum current of 20 ma.
The arduino uno has in total 14 digital pins which provide a maximum current of 20 ma. For the uno r3 there is no build in wifi. He hits a lot of the important points here, and in addition he explains the limits of all the pins and interfaces in the rest of the post. This is pulled up with a 10k resistor to help prevent spurious resets in noisy environments;