Use testing mode in order to show "hello world" on the screen at arduino startup : Verify contrast (it could be too low preventing you to see text), you can adjust contrast using the blue ...

Verify contrast (it could be too low preventing you to see text), you can adjust contrast using the blue potentiometer on the I2C backpack. Check the I2C address ...

An RFID-based attendance system transforms the tedious task of manual attendance tracking into an automated, error-free process. What makes this project particularly exciting is how a few inexpensive ...

Have you ever noticed how shopping malls, parking lots, or event venues seem to track the number of people or cars present inside? You might think they use an AI camera to count them, but in reality, ...