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Read weight values from popular different loadcell ADCs: HX711, ADS1232, and ADS1220, then transmit via LoRaWAN network.

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iPAS/Mbed_LoRa_Loadcell

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Introduction

This project is meant to test low-power embedded system over wireless communication such LoRaWAN. Based on Mbed platform and EmOne's STM32L151x controller, modules: HX711, ADS1232, and ADS1220 have been used for recording and streaming weights over the network.

Wiring Diagram

Using

All helper scripts are placed in scripts directory.

  • To compile code: scripts/compile.sh
  • To flash firmware, it depends on your programmer:
    • ST-Link: use the scripts/flash_stlink.sh which commands with the ST-Flash software.

    • SEGGER's J-Link V2: use the scripts/flash_jlink.sh which commands with the SEGGER's J-Flash software.

Experiment

The result

Notes

Mbed Framework

LoRaWAN & Gateway

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Read weight values from popular different loadcell ADCs: HX711, ADS1232, and ADS1220, then transmit via LoRaWAN network.

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