May 2020
Intermediate to advanced
262 pages
6h 48m
English
Content preview from Hands-On Edge Analytics with Azure IoT
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Soil moisture sensor
If you wanted to build an automated smart garden system, having a soil moisture sensor is required. The name of this sensor is pretty self-explanatory: it measures the moisture level in the soil. The following is a photograph of a soil moisture sensor:
As you can see in the photograph, the sensor is made up of two parts. The bottom piece is the part that is actually inserted into the soil. It connects to the other piece, the controller, via a wire. The four pins in the controller are as follows:
- VCC: Used to provide power to the sensor
- GND: For ground
- D0: For digital output (either high or low) from the sensor
- A0: For ...