Bus Pirate v3.6a is a troubleshooting tool that communicates between a PC and any embedded device over 1-wire, 2-wire, 3-wire, UART, I2C, SPI, and HD44780 LCD protocols all at voltages from 0-5.5V DC. Working with the Bus Pirate is simple and effective type commands into a terminal on your computer..
I2C Interface 1602 2004 LCD Adapter Plate for Arduino has PCF8574 I2C chip that converts I2C serial data to parallell data for the LCD display. It can be connected to a standard HD44780 compatible 16x2 or 20x4 Character Display Module that supports 4 bit mode. In general, LCD connection with A..