This is a machine that can remind you to take medicine. People often forget to take medicine, whether before going out or before going to bed. It will drop a medicine when you pass by the machine, so put it where you regulary pass, like by the bed or by the door.

Let's get started!

Download this first https://github.com/johnrickman/LiquidCrystal_I2C

Step 1: Prepare What We Need

Step 2: Code

https://create.arduino.cc/editor/meganlin123/b8b303b6-1095-435f-9e7e-37d5e45ced33/preview

Copy the code and paste it on Arduino.
Don't upload it yet.

Step 3: Connect the Circuit

(On a breadboard)

Connect 5V to positive electrode (+)
Connect GND to negative electrode (-)
Connect the motor to Pin 8, 9, 10, 11
Connect #Trig to Pin 4
Connect #Echo to Pin 5
Other according to the picture

Step 4: Start Assembly

Cut a rectangle at the bottom on the box so that the screen is exposed and stuck.
Cut two round holes beside the screen to expose the Ultrasonic Wave Detector.
Also cut a small rectangle on the back of the box to connect with the computer (be tight).
Leave the wires in the box.
Cut a rectangle on the side to take out the motor.
Sealed off the box.
Stick the motor in the cylinder.
Put a small sector on the motor (to make it move).
A big sector is glued under the motor, in this way, when the motor rotates, there will be a hole for the medicine to fall off.

You can upload the code now!