An Arduino UNO R3 with a USB cable has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, 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
Arduino Starter Kit
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Arduino Starter Kit Multi-language — Arduino Official Store
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Arduino Starter Kit Multi-language — Arduino Official Store