You have received your Arduino UNO and want to quickly verify and test arduino uno that it is in good condition or you want to write your first Arduino UNO program. To do so you need to follow the following steps:
- Launch the Arduino IDE. If you have not installed, you can download from following site and install it.
- Connect the Arduino to USB port.
- Write the following code to blink the on board LED
- Compile and upload the code.
- The on board LED should start blinking every second.