A small idea, a little effort, and some creativity — Smart Dumbbells! 😄

Gym people will definitely relate to losing count during a workout 😅. This little innovation can be very helpful when you’re doing your reps while watching a movie, listening to music or a podcast, or even talking to someone. You don’t have to remember the count anymore! Just imagine if a small device like this was built into dumbbells, with a charging port and rechargeable battery.🔋💪 That would be pretty cool, right? 😄

I used Micro to make this project. It’s an amazing programmable board, and one of the best things about it is that it has many sensors and features built in, such as an LED display, buzzer, speaker, microphone, Bluetooth, accelerometer, compass, touch-sensitive logo, and buttons. This means you can simply program it and start creating projects without needing to build complicated circuits, solder, or do lots of wiring. It also has many pins, so you can connect external modules and components, just like you would with Arduino.

Check out the photos and watch the video for more details! 🚀

The dumbbells that count by themselves! 💡💪

September 2026