How-To Geek on MSN

Arduino's new DIY electronics starter kit has an UNO R4 board

A rduino boards are a popular choice for DIY electronics, but it's not always clear how to get started with building projects ...
EDN

LCD Interface Using I2C or SPI

An LCD can be made to connect to a microcontroller using two wires with the aid of the I2C interface which includes pins for an SPI interface version for flexibility. The I2C LCD interface is used ...