Cool uses for Arduino

There are very many cool Arduino projects and project sites in Internet (make Google search to see). Here are some interesting links to check out:
Arduino Projects at indestructables

Arduino user projects

Arduino Project Ideas

Top 40 Arduino Projects of the Web

Arduino Rising: 10 Amazing Projects People Are Doing With The Tiny Microcontroller

Electronics For The Everyman: 25 Kick Ass Arduino-Powered Projects

10 Simple-But-Fun Projects to Make With Arduino


Codeduino projects

Internet of Thing with Arduino

11 Arduino projects that require major hacking skills—or a bit of insanity

I will be posting more links to more interesting projects as comments to this post, like I did in my Cool uses for the Raspberry Pi posting. Some of the most interesting that spend some more time at can get their entire own postings this blog in Arduino section.


  1. Tomi Engdahl says:

    A USB-C connector on a flex PCB

    Let’s use an ATtiny84A as a structural element!

  2. Tomi Engdahl says:

    This Samsung Ballie-inspired spherical robot gets around on a couple of wheels

    Back in early 2020, Samsung demonstrated their Ballie robot concept at CES, and although it never got off the ground, it inspired Derek Lieber to create his own version of a gyroscopically stabilized robot that moves with a pair of hemispherical “wheels” on each side.

    Lieber’s project, which he calls “Ballbot2”, is based around a single Arduino Mega connected to a set of two LM6234 drivers that take the incoming 5V PWM signals and boost them up to the 12V required by the motors.

  3. Tomi Engdahl says:

    In this post, David Johnson-Davies shows how to write a reaction timer in uLisp by accessing Input Capture on the Arduino Uno:

  4. Tomi Engdahl says:

    Homecomputer from scratch © GPL3+
    Build your own 80s home computer from scratch based on an Arduino DUE – graphics display, keyboards, SD card disk and real time clock.

  5. Tomi Engdahl says:

    Adding LEDs to a Cross-Stitch Picture
    You can add LEDs to your cross-stitch project using an Arduino LilyPad and conductive thread.

  6. Tomi Engdahl says:

    Four-Button Wall-Mounted Arduino Uno Remote Makes Switching TV Channels More Accessible
    Designed for elderly relatives, this four-button remote makes it easy to flip between three favorite channels

  7. Tomi Engdahl says:

    Add a Rad CPU Load Graph to Your PC Case
    If you want to see exactly how hard your CPU is working, you can add this rad TurboLEDz 88s CPU Load Graph to your PC case.

  8. Tomi Engdahl says:

    Automatic Attendance and Classroom Environmental Monitoring © GPL3+
    This project simulates a Smart Classroom automatic attendance using RFID module and classroom environmental monitoring using DHT11.

  9. Tomi Engdahl says:

    Adafruit Brings Floppy Disk Support to Arduino Boards, Creates an Open Source USB Floppy Drive
    Adafruit Floppy project goes beyond CircuitPython with an Arduino port, MFM decoding, and a USB adapter mode — with more to come.


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