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. Bluetooth Module is interfaced with the arduino microcontroller Atmega328. The microcontroller has full duplex UART which is used for communication with Bluetooth Module. The light intensity control has been developed to demonstrate the feasibility and effectiveness of the application. We can control the intensity of lights wirelessly using android phone.
The Android Software in Mobile Phone sends proper commands to Bluetooth module which is then decoded by microcontroller to perform required operation of electrical loads. 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
- Bluetooth Module.
- MOC 3021 OPTO-COUPLER
- BT136 TRIAC DRIVER
- 16*2 LCD Display
- AC Loads (Lamp etc.)
- Regulated Power Supply