RAK1906 Environment Sensor data format

v.zanevskij · October 3, 2024, 10:24am

Dear Support and users,
I am using RAK1906 Environment Monitoring Sensor, which is connected to RAK4631 and is periodically sending data to RAK7246G gateway. The firmware flashed on the RAK4631 is coming from the example:

github.com

RAKWireless/WisBlock/blob/master/examples/RAK4630/solutions/Environment_Monitoring/Environment_Monitoring.ino

/**
   @file Environment_Monitoring.ino
   @author rakwireless.com
   @brief This sketch demonstrate how to get environment data from BME680
      and send the data to lora gateway.
   @version 0.1
   @date 2020-07-28
   @copyright Copyright (c) 2020
**/

#include <Arduino.h>
#include <LoRaWan-RAK4630.h> // Click to install library: http://librarymanager/ALL#SX126x-Arduino
#include <SPI.h>

#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME680.h> // Click to install library: http://librarymanager/All#Adafruit_BME680
#include <U8g2lib.h>		   // Click to install library: http://librarymanager/ALL#u8g2

U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0);

This file has been truncated. show original

However, I do not know how to transform the measurement result into decimal parameters. The format of the measurement data is:

But on the gateway in the frames I receive:
frm_payload:“010829155000018f40000265c6”

How is the frm_payload structured? Could you please advise how to get the decimal data? Thank you!

beegee · October 3, 2024, 11:49am

You have to decode the payload in your end-point, which can be the LoRaWAN server, or an extension like Datacake, NodeRED, …

Chirpstack LNS ==> https://docs.rakwireless.com/Product-Categories/WisNode/RAK7204/Quickstart/#input-decoding-function-in-chirpstack

For other LSN or extensions it is similar, but everyone has a different syntax for the decoders.

This decoder might work as well ==> GitHub - RAKWireless/RUI_LoRa_node_payload_decoder: This decoder can be used for all LoRa nodes which are built based on RUI.

v.zanevskij · October 4, 2024, 8:17am

Thank you Bernd! I am working on the decoder code using your example for Chirpstack. Have a good day!

system · October 14, 2024, 8:17am

This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.