4-Digit Countdown Timer (in minutes and seconds)
![](https://i.ytimg.com/vi/wV6O_Kjl81U/mqdefault.jpg)
37:29
"Valves" Escape Room Puzzle
![](https://i.ytimg.com/vi/aBUnAhrSVu0/mqdefault.jpg)
24:03
LED Displays
![](https://i.ytimg.com/vi/8aMsJWpXyE8/mqdefault.jpg)
17:56
Improve your Arduino programming skills - Using the ATmega328P registers.
![](https://i.ytimg.com/vi/f_f_5cL0Pd0/mqdefault.jpg)
17:16
Escape Room Object Placement Puzzle using Arduino/RFID
![](https://i.ytimg.com/vi/Ob9mrq_Lj9k/mqdefault.jpg)
8:58
All About TM1637
![](https://i.ytimg.com/vi/ZPRntiAheZs/mqdefault.jpg)
3:00:56
Ed Sheeran, Bruno Mars, Dua Lipa, Adele, Maroon 5, Rihanna, The Weeknd - Pop music 2024
![](https://i.ytimg.com/vi/xdJxRIIzu8o/mqdefault.jpg)
3:00:30
3 Hours Countdown Timer Flip Clock ✔️
![](https://i.ytimg.com/vi/dfojvebIwJc/mqdefault.jpg)
3:25:27