Here to learn How to Make an Bluetooth controlled Door Opening and closing System Using Arduino, LCD, servo, LED and android application. The Servo Motor to control door open and close through bluetooth using android application. The Red/Green (Bi colour) LED using for Door Lock/Unlock indication and LCD display 16x2 using for Door open/close status.
The Door locked/unlocked information number storing in Arduino EEPROM at every time of door Open/close. When the power of the Arduino the EEPROM remember the previously stored number and maintaining the door lock/unlock status.