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MicroView Learning Kit

06 Temperature Sensor

Introduction

A temperature sensor is exactly what it sounds like – a sensor used to measure ambient temperature. This particular sensor has three pins – a positive, a ground, and a signal. This is a linear temperature sensor. A change in temperature of one degree centigrade is equal to a change of 10 millivolts at the sensor output. The TMP36 sensor has a nominal 750 mV at 25°C (about room temperature). In this circuit, you’ll learn how to integrate the temperature sensor with your MicroView, and use the serial monitor to display the temperature.

When you’re building the circuit be careful not to mix up the transistor and the temperature sensor, they’re almost identical. Look for “TMP” on the body of the temperature sensor.

Parts

Component Reference Image
TMP36 Temperature Sensor TMP36 Temperature Sensor Diagram
Blue Jumper Blue Jumper Diagram
Red Jumper Red Jumper Diagram

Checkout our breadboard guide and MicroView Pinout for more information.

Breadboard Setup

MicroView Arduino Code

What you should see

As you warm and cool your temperature sensor, you should be able to see the gauge on your MicroView's display go up or down.

Troubleshooting

Temperature Value is Unchanging

Try pinching the sensor with your fingers to heat it up or pressing a bag of ice against it to cool it down.

Still No Success?

A broken circuit is no fun, send us an e-mail and we will get back to you as soon as we can: help@geekammo.com

Continue on to circuit 07 Servo