Mini Teleprompter

I have trouble with public speaking so I decided to make a miniature teleprompter about the size of an index card that I can use while giving a speech.

Software

Autodesk Fusion

Autodesk Tinkercad Circuits

Arduino IDE

Hardware

1x Arduino UNO R3 Board

1x Mini Breadboard

1x 16x2 LCD Display

1x 10k Potentiometer

1x 220 Ohm Resistor

15x Jumper Wires

1x 9v Battery with Snap-on Connector

1x Roll of Scotch Tape

Make sure you have the correct number of cables, the correct type of potentiometer, AND DOUBLE CHECK YOU HAVE THE CORRECT RESISTOR, YOU RISK BURNING OUT THE LCD.

Use this picture to assist in assembling the bread board circuit or use the diagram in the next step.

Use the diagram that I created with Tinkercad circuits to ensure you assemble the teleprompter properly.

Plug in your Arduino using the USB cable and use the Arduino IDE application to put this code on the board (You can enter your own text by putting it where it says "INSERT YOUR TEXT HERE"):

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

String script = "DIY Teleprompter: INSERT YOUR TEXT HERE";

void setup() {

lcd.begin(16, 2);

}

void loop() {

for (int i = 0; i < script.length() - 16; i++) {

lcd.setCursor(0, 0);

lcd.print(script.substring(i, i + 16));

delay(200); // Adjust speed here

}

}

Use this file to 3d print the case for the teleprompter. If you dont own a 3d printer, I recommend contacting your schools technology teacher, local makerspaces, local libraries. or a local university to ask for permission to print this.

I recommend using scotch tape to hold the LCD and other components to the case. The battery should slide nicely into place.