Battery Holder Case Cover Shell For micro:bit 2pcs AAA Batteries 3V

The UNO is an for Arduino compatible board. It is based on for Arduino UNO Rev3 design. Some visible improvement on hardware make more flexible and easier to use. SPI, COM and IIC bus breakout make bus connect easier. The for Arduino Uno Rev3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.