First contact.
Look at the Arduino.
- Two rows of sockets for connecting pins.
- A power socket, a USB port and a RESET button.
Four onboard LEDs
- ON — the board has power.
- RX — receive: data coming in.
- TX — transmit: data going out.
- L — the built-in LED.
LED = Light Emitting Diode.
Pins are grouped into
Digital · Analog · Power
Each pin has a label: a number or a tag.
Connect the Arduino.
- Connect it to the computer with USB.
- The ON LED lights up.
The Arduino has power. - In the IDE, click Select Board and choose its COM port.
- If asked to choose a board, search “Uno” and select Arduino Uno.
If needed: Select other board and port…
Press RESET.
You may see LEDs blink. Something happened!
We just reset the board.