Introduction: Non-contact Switch for Public Water Dispenser - Arduino
Story
Maintaining hand hygiene and washing hands are the most important personal hygiene measures to prevent the new coronavirus. In daily life, we inevitably touch various public facilities, such as the switch of the company's water dispenser. Since drinking water is everyone's daily and you need to touch the switch of the dispenser many times a day. In order to avoid cross infection caused by bacterial virus transmission as much as possible, I made the simplest automatic sensor switch on my Arduino and shared it with you.
Hardware
Grove Base Shield V2.0 for Arduino X1
(Could replace arduino uno rev3 and grove base shield V2.0 to Seeeduino Lotus, less hardware, less cost)
Grove - IR Distance Interrupter v1.2 X1
Grove - Rotary Angle Sensor X1
USB Cable X1
Power Bank X1
Software
Arduino IDE
Step 1: Hardware Connection
Step 2: Upload the Code
Quick Note on Servo Control:
Standard servos allow the shaft to be positioned at various angles, usually between 0 and 180 degrees. Continuous rotation servos allow the rotation of the shaft to be set to various speeds.
"servo.write(angle)" writes a value to the servo, controlling the shaft accordingly. On a standard servo, this will set the angle of the shaft (in degrees), moving the shaft to that orientation. On a continuous rotation servo, this will set the speed of the servo (with 0 being full-speed in one direction, 180 being full speed in the other, and a value near 90 being no movement).
Attachments
Step 3: Install the Device to a Suitable Location
Install the device to a suitable location and test to the perfect. Enjoy the results of your work!
I guess you cannot wait showing off your great work to your families and friends already! Run and go shooting some great pictures and videos now! You are very welcomed to also share your unique work with us. Should you have any further question about this project, or want to share your work with me, feel free to drop an email to wym627@qq.com. I am Makerming from Shenzhen, China. Finally, thanks for reading, your comments are the biggest support to my work.
Step 4:
