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Control the temperature of your aquarium or greenhouse

The sensor (DS18b20) measures the temperature of your aquarium or greenhouse.
The display shows the current temperature and the status: cooling or heating.

<25°C -> Relay Channel 1 active -> heating
>25°C -> Relay Channel 2 active -> cooling

You can easily change the temperature values in the arduino code.

Step 1: Parts

Step 2: Arduino Board

<p>What a great use of an aurduino! </p>

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