An Arduino is used to decode the commands from the alarm system and interface with the SmartThings hub. The output of the IT-100 interface is RS232 at 12V levels therefore it can't be directly ...

Note: This program will configure pins 2-7 as pull up inputs and pins 8-13 as outputs with initial values of LOW. This can be modified if you would like a different distribution of inputs and outputs.

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 ...

This project is based on a classical Arduino uno (a Nano or a Mega can also be used) and a Nextion touch screen. The two parts communicate using an Arduino serial RS232 line. In order to free the ...

Enhanced Arduino Leonardo platform developed by an electronics teacher as an educational board, but also suitable for hobby environments.

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 ...