โปรเจกต์ เครื่อง Hand wash timer

This project is a simplified handwashing timer with basic components, I have thought it because I wanted to do a project to prevent covid but simple, low cost and accessible in arduino stores.

This project works like this: press the button and the code will turn it on, the timer will start counting, it will last 20 seconds and it will start ringing when finished.

An image

How to build the project:

1. Ride the lights.

The red led connected to pin 13, green led to pin 12 and both connected to ground with a resistance and gnd connect to the negative side of the bread board

2. Mount button.

Connect pin 5v to the positive part of the breadboard also connect to pin 10 with 10k ohm resistance to ground

3. Mount the buzzer

connect pin 11 to positive part and with ground wire

4. Finally place the LCD I2C like this:

SDA to SDA

SCL to SCL

VCC to 5V

GND to GND

And so it is done