Instructions | DIY Hand Wash Reminder

1
Making a Vibration Sensor:
- Take a single stand wire remove the coating.
- Make a spring using the wire.
- Also take a straight wire of length same as the spring that we made.
- Solder the spring and wire as shown in image to RST and GND of the Arduino board.
- Make sure that wire is inside the spring and not touching the spring.
- Using plastic tape cover the pins which are under the spring so that spring does not comes in contact to them.
2
Circuit Connections:
- Make all the connections as shown in circuit diagram.
3
Code:
- Code is given in the files section above.
- Open the code in Arduino IDE make sure to install FastLED library in the Arduino IDE.
- Connect the Arduino to PC,select the board type,select port and upload.
- After the code is uploaded make sure everything is working.
4
Final:
- 3D print the given STL files.
- Make a strap using the clips and belt or you can use any other strap that you have.
- Assemble everything with the help of glue.
5
Note:
- You can adjust the sensitivity of the band by adjusting the spring and the wire on the board.
- Adjust the sensitivity such that it should not trigger during the normal work, it should only trigger when the hand is jerked with a force.

DIY Hand Wash Reminder