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 ...

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 ...

The I2C (Inter-Integrated Circuit) bus is a synchronous serial communication protocol that allows multiple electronic components (sensors, displays, memories, etc.) to be connected within the same ...

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, ...