BOOOLE Arduino Compatible Uno Rev3 - DIY Maker Open Source

Single chip microcomputer: ATmega328, working voltage: 5 v, the input voltage (recommended); 7-12 V, the input voltage (range) : 6-20 V, digital I/O pins: 14 (including six for PWM output), analog input pins: 6, each of the dc current I/O pins: 40 Ma, 3.3 V dc current pin: 50 Ma,