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What you will learn: How to create a moisture sensor with Scratch and your Pi.
Check out the video on what you will be creating.​​
What you will need:
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1. Moisture Sensor
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2. DAC
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3. 5 M/F jumpers
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4. Sense hat on your Pi
1. VCC to 5V
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2. GND to GND
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3. SIG to a GPIO, we used GPIO 4.
Because we are using a Sense Hat, it uses some GPIO's.
This image shows what GPIO's are open. Also, click on the image to go to the site for more information.
Video 2
Video 3
Remember:
Long LED into the wire (positive)
Short LED into a resistor (negative)
Video 4
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