In this light intensity is controlled by controlling the PWM pulses from the ARDUINO, which are fed to the TRIAC through MOC3021 opto-coupler interface. The light intensity is controlled by using two buttons. One for increasing and another for decreasing light illumination. We can control brightness in 16 steps. Zero cross detector circuit is constructed. The 16*2 LCD Display is used to show the status of the circuit.
Software Tools:
- ARDUINO IDE
- EMBDDED CPP CODE
- PROTEUS SIMULATOR
Hardware :
- ATMEGA328 Microcontroller
- Zero Cross Detector
- MOC 3021 OPTO-COUPLER
- BT136 TRIAC DRIVER
- 16*2 LCD Display
- AC Loads (Lamp etc.)
- Regulated Power Supply