For electronic hobbyists may already be familiar with Arduino UNO, but for beginners or who just want to learn to make electronic projects using Arduino UNO may experience difficulties. In this article, we will try to help by presenting information about Arduino UNO pinout.
OK. Before we go on to the main topic of Arduino UNO pinout, I will tell you a bit about What is Arduino UNO? To answer it is as follows.
The Arduino UNO is a microcontroller board based on ATmega328. On board Arduino UNO using Atmega328p microcontroller with DIP form, which has 28 pin number. The Arduino UNO has 14 digital input/output pins (6 of which can be used as PWM output), 6 analog inputs, a 16 MHz Crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.
With the Arduino UNO loading everything needed to support the microcontroller, it is very convenient and easy to connect it to a computer with a USB cable or supply it with an AC adapter to DC or use a battery to start it.
The Arduino Uno R3 differs from all previous Arduino boards, the Arduino UNO R3 does not use the USB-to-serial FTDI driver chip. In contrast, Atmega16U2 (Atmega8U2 to R2) features are programmed as a USB to serial converter. Revision 2 of the Arduino Uno board has a resistor that draws the 8U2 HWB line to ground, which makes it easier to put into DFU mode. Revision 3 of the Arduino UNO board features an additional Pinout 1.0: plus SDA and SCL pins close to the AREF pin and two other new pins placed close to the RESET pin, the IOREF allowing the shields to adjust the voltage provided from the board. For the future, the shield will be compatible with a board that uses AVR that operate with 5V voltage and with Arduino Due which operates with 3.3V voltage. The second one is an unrelated pin, provided for the future purpose. LONGER RESET circuit. Meanwhile, Atmega 16U2 replaces 8U2.