I believe most of the people don't like to drink water, they prefer soft drinks, coffee, or other sugary drinks. Actually drink about 2 liters of water a day is good to your body, so why don't you try! This instructable is here to help you as a reminder to drink water. The timer is set for 30 minutes, when the time is up, the flagstaff is up, and it will automatically switch your computer screen to remind you to drink water.

For this project, there are a few steps you are going to follow:

1: Setting up the circuit

2: Upload code

3: Upload your code and decorate it

* When writing your own code, don't afraid, I will have annotation beside to help you.

Step 1: Materials

- Arduino Leonardo x1 (in this project, only Leonardo is allowed) https://www.amazon.com/Arduino-org-A000057-Arduin...
- Laptop x1 - USB caple x1 https://www.amazon.com/AmazonBasics-Male-Micro-Ca...

- Servo Motor x1 https://www.amazon.com/-/zh_TW/Pastall-Digital-He...

- Solid core jumper wires https://www.amazon.com/-/zh_TW/Pastall-Digital-He...

- Pencil (for hanging the flag)

- Paper (for writing "Drink Water" )

Step 2: Setting Up the Circuit

Connect the servo motor to the Arduino board within six solid core jumper wires. Counting from left to right, the order are negative charge, positive charge, and D pin, as shown in the graph.

Another part is the keyboard command. In this, you only need one solid core jumper wires, connected GND to pin 10.