DSC Alarm interface to SmartThings. Able to arm/disarm, monitor zone status and trigger the panic alarm. The IT-100 interface is connected to the communication and power lines of the DSC alarm panel ...

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 ...

A single Arduino Uno/Mega can carry up to 14 RS-232 boards. Each board is distinguished by ID, which is set via a DIP switch. If you are a beginner, you can get started with Arduino Tutorials for ...

In researching industrial controls projects for my “Introduction to PLCs” and “Advanced Programmable Logic Controllers” courses that I teach at a local Alabama community college, I was quite surprised ...