DISPLAY LCD 4 x 20 command TWI (I²C compatible) INTRODUCTION: We all know how the free pins microcontrollers are precious. The use of an LCD display in our projects is often unavoidable. In the best ...

This library uses a PCF8575 to read the pulses of a rotary encoder. As a PCF8575 has 16 lines up to 8 decoders can be read over I2C. The PCF interrupt line can be used to detect changes in the ...

To connect an LCD to an Arduino without using an I2C module, you'll need to connect the LCD directly to the Arduino using its parallel interface. Below is a guide to help you achieve this: ...