Introduction: Arduino Powered Digital Thermometer

Picture of Arduino Powered Digital Thermometer

This is a digital temperature measurement device powered by the Arduino UNO R3. It is quite simple and a very handy thing to be able to make. A suitable project to learn about Liquid Crystal Displays (LCDs) interacting with an Arduino.

Step 1: Gather the Components Needed

For this project you will need:

- An Arduino with USB connectivity

- 220 ohm resistor

- 10K Potentiometer

- Arduino-compatible 16 x 2 LCD

- Temperature sensor

- Breadboard and wires

Step 2: Get Power

Picture of Get Power

To give your breadboard power, connect the 5v and GND pins on your arduino to the + and - on the side of the breadboard respectively.

Step 3: Wire Up the Temperature Sensor

Picture of Wire Up the Temperature Sensor

Connect the left pin on the flat side of the temperature sensor to +. The centre pin of the temperature sensor goes to A0 (Analog Input 0). And the right pin on the flat side of the temperature sensor goes to -. The temperature sensor is now active.

Step 4: Wire Up the LCD and Potentiometer

Picture of Wire Up the LCD and Potentiometer

To make explaining a lot easier, use this diagram to wire up the LCD and potentiometer. The potentiometer will control the brightness/contrast of the LCD.

Step 5: Program

Picture of Program

This is the code I wrote. Feel free to copy.

Step 6: End Result

Picture of End Result


Karavan (author)2016-05-22

Млять, well who so makes out projects?
Neither temperature sensor models, nor scheme, nor opportunity to copy a code.

TylerB10 (author)2015-05-14

pleas epost copy of code in comment box.

TylerB10 (author)2015-05-14

Gaige Kerns (author)2015-04-02

Why would you need the 220 Ohm Resistors? The LCD can take all 5V and so can everything else on the board, comparing to the one I built, and secoundly the Temp Sensor, was it the LM36GZ

dratek (author)2015-03-24

maybe it would be good to write what sensor is used....

Mr AbAk (author)2015-01-24

Nice Ible ...

About This Instructable




Bio: 14 Years Old || Love Electronics || Robots || INSPIRED BY QTECHKNOW!!
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