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 ...

Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very ...

This library uses a PCF8575 to read the pulses of a rotary encoder. As a PCF8575 has 16 lines up to 5 decoders with a switch can be read over I2C. The PCF interrupt line can be used to detect changes ...

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: Hardware ...

I made a simple way to use the i2c fm receiver from Seeed Studio. It uses an ATmega328p, an 8x2 character LCD display and a rotary encoder and is built on the ELPB-NG (150180). The rotary encoder is ...