In this instructable I show You how to make 230V dimmer based on Arduino.
I use remote controller of my Samsung TV, but it's not necesary. Take a look at YouTube video embedded above.
In nex steps I describe shortly how to build a circuit.
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Step 1: You Will Need...
Parts to buy:
- MOC 3021 optocoupler
- BT136 triac
1 x 360 ohm 1/4W
1 x 330 ohm 1/4W
1 x 33K ohm 1/4W
2 x 68K ohm 2W
- AC/DC 5V power supply
- Arduino ;)
Step 2: Circuit Sketches
We can split this circuit in three parts:
- Ardunio as a microcontroller.
Keeps all instructions how to behave.
- Zero cross detection module based on PC814 or EL814.
Tells Arduino when it should trigger the Triac BT136.
- 230V trigger based on Triac BT136 and optocoupler MOC3021 to dim a bulb.
All images You have above of this step.
More info You can find below. It's the best description of I've found about 230V and Arduino dimming.