Soil Testing Module Overview

kanerob88

kanerob88

so is that a complete soil testing module sending the data over lora
271 days

flux

0:39

Yes – your schematic already implements a full LoRa-based soil-monitoring core:
  • Analog front-end: the soil probe input comes in at sensor, is buffered/amplified by IC1 (MAX40005ANS02+T) and fed into
  • MCU: U2 (STM32L031G6U6S) via PA8 ADC, which processes the measurement, then
  • Radio: communicates over SPI to U1 (RFM95W-915S2) and sends out via the antenna at J2.
  • Power and decoupling are handled by your battery input [BATT1], rail decouplers ([C1]–[C4]) and net portals for 3V3/GND.
  • LEDs and current-limit resistors provide status indicators.
All that remains is to attach your actual soil-moisture probe to the [sensor] net portal (and flash the appropriate firmware). Would you like to add a dedicated connector footprint for the probe, or select a specific sensor?
Add JST connector
Add screw terminal
Select capacitive sensor
I2C sensor modules
Create net class
271 days
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    LoRa soil monitor Reference Design.png

    LoRa soil monitor Reference Design.png

    LoRa soil monitor Reference DesignThumbnail

    LoRa soil monitor Module

    LoRa soil monitor Module thumbnail
    This is a LoRa soil monitor module. It uses a STM32L031G6U6S microcontroller and a RFM95W-915S2 LoRa transceiver, integrated with sensor interfacing and LED indicators. Communication occurs via USART and SPI. The system is powered using a battery. #reusable #module #sublayout #simple-embedded #stm

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