It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, a 16 MHz crystal oscillator. 2.1mm DC socket for for power and has a reset button.
Specifications: * Controller: ATMEGA328P-AU * USB to serial chip: CH340 * USB Port: type-C * Input Voltage (recommended):7-12V * Digital IO pins:14 (of which 6 provide PWM output) * Analog input pins :6 DC * Current per I/O Pin:40 mA * USB Clock Speed: 16 MHz * Operating voltage: 5V * Input Voltage (limits): 6-20V
