Build a Computer-Based 220V Dimmer

[Liad]

How can I build a computer-based 220v dimmer?

I'm not asking about the programming part, but the electronic.

 

[NoTime]

Try http://en.wikipedia.org/wiki/X10_(industry_standard ) for a start at this.

 

[oswaler]

To build a computer-based 220V dimmer, you will need to have a basic understanding of electronics and circuitry. Here are the steps you can follow to build one:

1. Gather the necessary components: You will need a microcontroller (such as Arduino), a solid-state relay, a potentiometer, a power supply, and some resistors and capacitors.

2. Design the circuit: Use a schematic diagram to design the circuit for your dimmer. The basic principle is to use a pulse width modulation (PWM) signal from the microcontroller to control the switching of the solid-state relay, which in turn controls the amount of voltage supplied to the load (light or appliance).

3. Assemble the circuit: Follow the schematic diagram and assemble the circuit on a breadboard or a PCB. Make sure to double-check all the connections and components.

4. Program the microcontroller: Write the code for the microcontroller to generate the PWM signal and control the dimming level. You can find many tutorials and resources online for programming microcontrollers.

5. Test the dimmer: Once the circuit is assembled and programmed, test the dimmer with a light or appliance connected to it. Use the potentiometer to vary the dimming level and make sure it is working correctly.

6. Enclose the circuit: Once the dimmer is tested and working, you can enclose the circuit in a suitable housing to make it safe and durable.

Remember to take necessary precautions while working with electricity and always consult a professional if you are unsure about any aspect of the project.