Starter Guide

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- 77 -
-
GND
+
3.3V
Operating steps
1. First, we need to prepare the following experimental materials:
1 * microbit
1 * microbit expansion board
1 * USB cable
1 * CM Module
1 * Soil Moisture sensor
- Several Jumper wires
2. Connect the comparator and soil moisture sensor with micro:bit.
connection diagram：