Description
Components
1. Microcontroller – This is the brain of an Arduino, and is the component that we load programs into. Think of it as a tiny computer, designed to execute only a specific number of things.
2. USB port – used to connect your Arduino board to a computer.
3. USB to Serial chip – the USB to Serial is an important component, as it helps translate data that comes from e.g. a computer to the onboard microcontroller. This is what makes it possible to program the Arduino board from your computer.
4. Digital pins – pins that use digital logic (0,1 or LOW/HIGH). Commonly used for switches and to turn on/off an LED.
5. Analog pins – pins that can read analog values in a 10-bit resolution (0-1023).
6. 5V / 3.3V pins- these pins are used to power external components.
7. GND–also known as ground, negative or simply -, is used to complete a circuit, where the electrical level is at 0 volts.
8. VIN–stands for Voltage In, where you can connect external power supplies.
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