Template: Moisture Sensor STM32 Guide

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The examples provided are based on the STM32F103RBT6 and the STM32H743, the connection provided is based on the STM32F103RB.
If you want to use other STM32 boards, please change the connection and you may need to port the codes yourself.

Hardware connection

Hardware connection-STM32
Connect to STM32F103RBT6
Moisture STM32 Description
VCC 3.3V Power input
GND GND Ground
AOUT PA6 Analog data output

Examples

The examples are based on the HAL library. Please download the demo codes, unzip them and find the STM32 examples.

  • Open the project from Moisture-Sensor-code\STM32\STM32F103RB\MDK-ARM by Keil.
  • Build the project and program it to the STM32 board.
  • connect the UART1 of the STM32 board to the PC and check the serial data by SCCOM software.
Moisture STM32 3.png

Expected result

Insert the sensor into the soil and gradually add water to the soil. The output data of the serial port changes accordingly