Alcohol Reminder

This device is to remind people to spray alcohol when they went back home. The device will flash the blue light when the alcohol are placed, and when a person take the alcohol up, the blue light will be disappeared.

1. Arduino Leonardo*1

2. Breadboard*1

3. 5mm Red LED*1

4. 100 Ohm Resistor*2

5. Jumper Cables*7 (3 long ones, 4 short ones)

6. Photoresistance*1

7. USB elongation*1

8. Tape and scissors

9. Cardboard box

Upload the following code onto Arduino.

link to the code: https://create.arduino.cc/editor/michelle_chien/bdf051d2-986b-4725-a8f7-71de57a3df5c/preview

1. Connect the 7 Jumper Cables

2. Connect the 2 Ohm Resistors

3. Connect the Photoresistance

4. Connect the LED lightbulb

When the person walk passed by the device, he or she will notice the flashing red lights, which reminded the person to spray the alcohol before he or she enters their house.