In this project, we have implemented the hand gesture based Door open/close and Light on/off system using Edge Artix 7 FPGA board. This reminds people to avoid touching of door.
Table of Contents
Hardware Required
Edge Artix 7 FPGA development board
Edge digital sensor Add-on
Edge motor drive Add-on (Servo motor/relay)
Block Diagram
Project explanation
In our project, we have introduced an innovative way of practicing social distancing with gesture based door control system. This is a prototype but it could also be used in real life situations; it would be helpful in many public places and in reducing the spread of coronavirus.
Flow of Operation:
The Ultrasonic sensor always measures the distance of the person near the door and display the distance in 7 segment display.
LCD display shows “Don’t touch the door keep distance” as a warning message.
If the person reaches near the door at less than 1 meter, the alarm will be on and also display the message in LCD as “Use Hand Gesture to open/close door”. This distance can be changed according to your preferences but it has to be more than 1 metre.
Now the person has to do the hand gesture to open or close the door. The door is connected with the servo motor. If we do the hand gesture left to right, the servo motor will move forward and door will open. If we do the hand gesture right to left, the servo motor will move backward and door will close.
And also we can turn on and off the light in the room by hand gesture. For the light on and off, do the hand gesture top to bottom and vice versa. The light is connected with the relay which is act as a switch.
List of I/O ports and its description
| CLOCK | 50Mhz clock input |
| RESET | logic signal which, when active, resets the system |
| AN | Anode output pin |
| SSEG(7:0) | 8 bit 7 segment output |
| PULSE_PIN | Ultrasonic sensor output pin |
| TRIGGER_PIN | Ultrasonic sensor input pin |
| SERVO | Servo motor output |
| SCL | Serial clock line for Gesture sensor |
| SDA | Serial data line for Gesture sensor |
| LCD_E | LCD enable output line |
| LCD_RS | LCD register select line |
| DATA(7:0) | 8 bit output data line |
| ALARM | Buzzer output |
| RELAY(1:0) | Relay output |
Project Demo on EDGE Artix 7 FPGA kit
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EDGE Artix 7 FPGA Development Board₹ 13,750
