Arduin-home-automation

In this Instructable I will tell you about an example of home automation controlled by a ZELIO SR3 PLC and Arduino boards used to measure and control light, heat and humidity.

This system is used by my students to learn basics of automation.

The ZELIO PLC is the master of this system in which you have to download a program made under ZELIO SOFT 2 software (Free). This PLC is combined with 2 additional cards:

-one to communicate in MODBUS RTU with the HMI

-an other one including analog 0/10V inputs and outputs.

I wired a COOLMAY MT6050HA HMI according to the supplied schematic and tutorial. I give you too, the HMI program and the Zelio program.

I used 3 Arduino clone boards:

-as a 0/10V to 0/12V DC dimmer for Led lamps

-as a measurement system for °C/%/Lux to three analog 0/10V DC outputs.

-as a 0/10V to 0/230V AC dimmer for the heater.

They are only slave with no other functions programed.

Just an example sheet files project given to my students.

It's a very robust system but If you have got some communication problems with the 0/10V outputs/inputs due to EMC interferences (for long wires), I advise you to use shielded cables.

Thanx to all valuable instructables all over the net.