In this project, arduino is connected to LCD and Keypad using only two pin using I2C communication. I2CCircuit.pdsprj is the circuit, while KeypadI2CNoLib.ino is the code - EbelAlfie/IoT_I2c_Commun ...

Screens may come with different I2C addresses, trying these addresses should help : 0x27 or 0x3f If your display still does not work : Use testing mode in order to show "hello world" on the screen at ...

Makers and developers that enjoy creating projects using the Arduino platform may be interested in a new shield for Arduino that incorporates an LCD JEMshield++, keypad and enclosure all in one ...