/arduino-2560-blink

Hello world equivalent for Arduino Mega 2560 board

Primary LanguageC++

Arduino blink 💡

A "hello world" example for Arduino Mega 2560 Board

Prerequisites 📚

  • Arduino Mega 2560 Board [1] and a USB 2.0 Type-A-to-Type-B [2] cable;
  • Linux OS with Python3 and python3-venv package installed (known to work on Ubuntu 22.04 with Python 3.10.4 + python3-venv);
  • Visual Studio Code installed and ready (known to work with v1.70.0).

Setup 🛠

  1. Add the user you work as to the dialout group. Otherwise this error will pop-up when trying to upload compiled code to the Arduino board:

    Could not open port /dev/ttyACM0: [Errno 13] Permission denied: '/dev/ttyACM0'

  2. Start VS Code. The IDE will prompt you to install the PlatformIO IDE plugin - please do so. (If not, go to plugins, search for PlatformIO and install it PlatformIO IDE plugin.) After the installation succeeds restart VS Code (do NOT just reload the window - doesn't seem to be enough).

  3. Clone the repository and open it as a directory in VSCode. Now open src/main.cpp and take a look at the source code there.

Build 🏗

Try to build the project binary using the "✓" button on the status line, bottom of the VS Code window.

A successful build would end with something like

======= [SUCCESS] Took 0.71 seconds =======

Run 🚀

If building succeeds, make sure the board is plugged in via the Type-A-to-Type-B USB cable and then upload the code to the board using the "→" button down on the status line. (The first time you do this a bunch of libraried are going to be downloaded, which may take some time.)

The Arduino should now blink fast for short with couple service LEDs to indicate an upload has been performed, then start executing the code from src/main.cpp, which is blinking with the default LED following the timing pattern given in that code.

That's it! ;)

Enjoy!

Resources 📖