Chapter 5 Ice, Ice Blinky
Ingredients
- 1 Arduino Uno
- 1 Arduino USB cable
- 1 breadboard
- A piece of ice
- Your computer
Special Items
- 1 thermistor (model TMP36)
Thermometers are important. They help you decide whether you need a jacket today, and they let you know if the aquarium water is the right temperature for your tropical fish. Thermometers connected to tiny computers can make decisions based on temperature, doing things like turning on lights at a certain temperature, sounding alarms when things are too hot or too cold, and keeping track of temperatures over time.
Let’s get started by making an LED react to cold water.
Concepts: Temperature Sensing
“Thermistors”—you can think of the word as a mashup of “thermal” and “resistor”—are ...
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