Tag Archives: Modbus
HC-21 Simple Wifi Serial for Arduino Tutorial

The Simple Wi-Fi HC-21 module is a meager $10-$15 bucks on ebay right now. It is a simple Wi-Fi serial port server or virtual serial port. This means it is self contained and will handleimage all the overhead of negotiating a Wi-Fi connection and communication leaving more room for your application in the Arduino.

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X10 Control Using Arduino, Modbus, and ScadaBR

X10 Lighting and appliance modules are cheap on Ebay, I wanted to control them with my HMI (ScadaBR) so I put a X10 and Modbus library together in an  Arduino to turn on and off the modules.

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Arduino Modbus PLC / RTU

PLC/RTU

A Programmable Logic Controller, PLC or Programmable Controller is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs are used in many industries and machines.  http://en.wikipedia.org/wiki/Programmable_logic_controller

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Home Automation HMI with Mango M2M

HMI

A HMI (Human Machine Interface) is the system by which people can interact with a machine. The user interface includes hardware (physical) and software (logical) components.

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