The Optoma library contains functions that help to control the beamer from an Arduino. The library is tested with an UNO and an Optoma W305ST Beamer. The commands can work on other Optoma Beamers.

For the challenge, I wanted to send data from my computer's real serial port (RS232 9-pin connector). For that, I created an adaptor circuit because the voltages on a computer serial port are ...

Arduino and PLCs Hook Up Via RS232 and Modbus There is a thriving online developer community using RS232, Arduinos, and PLCs to build industrial and home automation systems on the familiar serial ...

Next generation USB/Serial Bridge/BOB using a FT231XQ, normal pin headers and a Micro-USB connector. VCCIO is +1.8..3.3 V but 5 V UART logic tolerant.

Electronic engineers, developers and hobbyists looking for a fully featured Arduino Mega compatible PLC may be interested in a new Indiegogo campaign launched today for a new development board ...

developers looking for a programmable logic controller might be interested in the CANADUINO Arduino MEGA 2560 compatible computing module ...