Bluetooth Based Smart Home using atmega8 microcontroller

This project is used to automate the home appliances through Bluetooth enabled PC. You can use the USB Bluetooth at the PC side and an Serail Bluetooth converter is used at the microcontroller side. The sparkfun bluetooth module is used here, but you can use any serial bluetooth module which supports SPP profile. Atmega8 microcontroller is used in this project
The PC application software was written using visual basic and the microcontroller coding was done through Bascom Basic. The project had the following features
  • 2 Temperature sensor (1 Indoor & 1 Outdoor)
  • High resolution temperature sensors are used (0.06deg)
  • 1 Light sensor with help of LDR
  • 1 PIR motion sensor
  • 5 Devices can be controlled
  • LCD & LED interface to display the status

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Circuit Diagram


PC Screenshot

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1 comment:

  1. hello. i build this circuit and i have a problem with commiunicating between computer and the avr, im using a hc05 bluetooth module which has default baud rate of 9600. vb application opens the comport but there are no any response from the avr, please help me. thanank you