Arduino Tutorial: Temperature Sensor

If you’re like me, every morning before you leave for work you wonder whether you should wear a jacket before heading outside. You might not have time to check outside your front door, but you always have time to check your iPhone! :]

The problem is, standard weather apps tell you about the temperature in a nearby city or suburb – but not necessarily about extremely local conditions. And what about that aquarium you would like to monitor, or your mini indoor greenhouse?

This is a job for the latest open source microcontroller – the Arduino.

In this tutorial, you’ll build an Arduino project for the iPhone that lets you connect multiple temperature probes you can place in different locations and query for their readings.

Keep reading to learn more about the Arduino, find out what materials you’ll need for this tutorial, and finally – build your own networked temperature-monitoring station!

This tutorial assumes you have been through some of the earlier tutorials on the Arduino. If not, you may want to check out our beginner Electronics for iPhone Developers tutorial series before starting.