CHOOVIO SL100 LoRaWAN Temperature and Humidity Sensor User Manual

June 5, 2024
CHOOVIO

CHOOVIO SL100 LoRaWAN Temperature and Humidity Sensor User Manual
CHOOVIO SL100 LoRaWAN Temperature and Humidity Sensor

General Information

SL101 is long range low power temperature and humidity sensor based on Semtech SX1262/SX1268.

Sensor Type Product Number
Built-in SHT30,2.9-inch E-Paper SL101CN, SL101EU,SL101US,SL101AS

Main features

  • Sensirion High Sensitivity Sensor
  • 2.9-inch Screen Local Display
  • Type-C for Local Configuration
  • Internal Battery Up to 5 Years
  • LoRa SX1262/SX1268, Long Range Low Power
Details

Product overview Product overview

Parameters Feature
CPU STM32L151
Wireless LoRaWAN(SX1262/SX1268)
Encryption AES128
Battery Built-in Li-battery (Changeable, and No Recharge)
Battery Capacity 5400mAh
E-Paper Temperature 0℃~+ 50℃
Sensor Temperature -45℃~+ 85℃
Sensor Humidity 0 ~100 %RH
Communication Half duplex
Accuracy Temperature : ±0.3℃ Humidity:±3%RH
Lifespan 5 Years(Every 30 Minutes for data uploading)
Data Speed 300bps-62.5k bps
Size 102mm60mm25mm
TX Power 22dBm Max
RX Sensitivity -140 dBm
Frequency SX1268: CN470

SX1262: EU868 / US915 / AS923

Dimensions

Size: 102mm60mm25mm

Product Dimensions

Installation

Installation Instructions

User Guide

Make sure antenna is installed before turn on the device.

Turn on/off the device

When you get the device, it is off, and on the screen, you can find the device EUI as below, the QR on the screen is Rejeee website. Just press the button for more than 3 seconds, then you can turn on the device. If you want to turn off the device, just press the button 3 seconds. You can change the QR code on the screen to your own website QR code: SensorTool Manual.

Turn on/off the device

Information display on screen

The device screen is 2.9-inch low power e-paper, when turn on the device, you can find information displaying on the screen as below, you can change the logo as you like. SensorTool Manual.

Information display on screen

USB-C Configuration

There is one USB-C port as below, which is for power on and config, connect device to laptop with a USB-C cable,
and you can config the device, make sure to install CH34x USB driver and here is the link for driver: USB-to-Serial Driver.

USB-C Configuration

Data Uploading

When turn on the device, it will send data immediately, also you can press the button a short time(0.1 seconds), then the device will also send data. Normally when you get the device from factory, the reset time for data sending is every 30 mins, and if you want to change the time, you can connect the device to computer for config, here there is instruction about the time configuration. SensorTool Manual.

Connect to LoRaWAN Network

LoRaWAN Network Structure

LoRaWAN Network Structure

SL101 temperature and humidity sensor is based on standard LoRaWAN Class A, so you can connect to any LoRaWAN network as below through OTAA: On the back of device, you can find information as below, with this information, you can connect to any LoRaWAN server.

Device EUI

Connecting to The Things Network , please make sure choose manually connect and OTAA as below:

Sensor

|

LoRaWAN

---|---
SL100CN| Connecting to The Things Networ
SL100EU| Connecting to The Things Networ
SL100US| Connecting to The Things Networ
SL100AS| Connecting to The Things Networ

Set ID and Key

Set ID and Key Interface

Data analysis example for JavaScript:

function decodeUplink(input) {
var obj = {};
var warnings = [];
obj.battery = (input.bytes[1]&0x1F);
obj.vol = (input.bytes[2]);
obj.temperature = (((input.bytes[4] & 0x80 ? input.bytes[4] – 0x100 : input.bytes[4]) << 8)

  • input.bytes[5]) / 10;
    obj.humidity = input.bytes[7];
    if (obj.temperature < -10) {
    warnings.push(“it’s cold”);
    }
    return {
    data: obj,
    warnings: warnings
    };
    }

Wireless LoraWAN Sensor Data Format

LoRaWAN Format:
Picture as below, FRMPayload is sensor data.

PHYPayload:

PHY Payload structure
Figure 6: PHY Payload structure

MACPayload:

MAC Payload structure
Figure 7: MAC Payload structure

MHDR| FHDR| FPort| FRMPayload=Sensor Data(Message)| MIC

4 Bytes

---|---|---|---|---
FPort| Data 1| …| Data N
FPort| Type+Data

N Bytes

| Type+Data

N Bytes

| Type+Data

N Bytes

|

Sensor Data Definition

Device Information(0x00)
Type Value Value Value
1 Byte 3 bit 5bit 1 Byte
0x00 Version Battery Level Reserve
Temperature(0x04)
Type 1 Byte Value 2 Bytes Comments
0x04 Temperature 2-byte signed integer with negative value below zero

The default unit is 0.1 degrees, that is 201 means 20.1 degrees

Humidity(0x05)
Type 1 Byte Value 1 Byte Comments
0x05 Humidity Unsigned integer of 1 byte.

The default unit is 1%RH, that is 10 means 10%RH

FRMPayload Example: 00 3F 24 04 01 1C 05 3E
00 3F24 Device Information, Version is 0x01, level is 0x1F = 31
04 011C Temperature is 0x011C = 284 = 28.4 ℃
05 3E Humidity is 0x3E = 62 = 62 %RH

Local Configuration

Note: Factory reset data uploading is every 30 mins, customers can change data uploading frequency as below:
Connect sensor with a USB-C cable to computer for local configuration, through local configuration, you can change the packet frequency. Refer SensorTool Manual.

Contact Us

Jiangsu Rejeee Intelligent Technology Co., Ltd

Address: No. 20,Xinghuo Road, Jiangbei District, Nanjing, China
Email: Jullie.zheng@rejeee.com
Tel: 0086 158 6180 7793
Web: http://www.rejeee.com

References

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