Connect your Arduino Nano to your computer using a USB cable. Open the Arduino IDE and copy the modified Arduino code into a new sketch. Make sure to select the correct board and port for your Arduino ...

Programmers who use PlatformIO can efficiently code and upload programs to Arduino boards using Visual Studio Code. The programming experience is enjoyable, time-saving, and efficient.

You can use arduino-cli to compile and upload code to non AVR boards as well such as ESP8266 and ESP32. For this, we need to add the additional package indexes in the Arduino CLI configuration file.

Click Sketch > Verify / Compile to make sure the code is properly in there. Save the file and then attach the Arduino to your computer with the USB cable. Click File > Upload.

Arduino simplifies things by only using just one coding language. Here's what you need to get started with developing software for the tiny device.

Over on the codebender blog [Vasilis] and his team are rolling out a way to remotely upload code to an Arduino over Ethernet.

To fix Arduino upload error, make sure you've selected the right board in the Arduino IDE, remove pins from the board, and reset the board.