Jiangsu SL700 Air Pressure Sensor E-paper User Manual

June 13, 2024
Jiangsu

SL700 Air Pressure Sensor(E-paper)–ShowDoc
SL700 Air Pressure Sensor(E-paper)
User Manual for SL700 Series(E-Paper)
LoRaWAN Air Pressure Sensor V1.0

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

General Information

SL700 is long range low power air pressure sensor based on Semtech SX1262/SX1268.

Sensor Type Product Number
Built-in SHT30,2.9-inch E-Paper SL700CN, SL700EU,SL700US,SL700AS

1.1 Main features:
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

1.2 Details

Parameters Feature
Parameters Feature
CPU STM32L151
Wireless LoRaWAN(SX1262/SX1268)
Encryption AES128
Battery Built-in Li-battery (Changeable, and No Recharge)
Battery Capacity 4800mAh
E-Paper Temperature 0℃~+ 50℃
Air pressure range 300~1250hPa(-40℃~85℃)
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

1.3 Size: 102mm60mm25mm

1.4 Installation

User Guide

Make sure antenna is installed before turn on the device.
2.1 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.

2.2 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.

2.3 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.

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. Sensor Tool Manual.

Connect to LoRaWAN Network

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.

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

Sensor LoRaWAN
SL100CN
SL100EU
SL100US
SL100AS

4.1 Set ID and Key

Data analysis example for JavaScript:

Wireless LoraWAN Sensor Data Format

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

Sensor Data Definition

6.1 Device Information(0x00)

Type Value Value Value
1 Byte 3 bit 5bit 1 Byte
0x00 Version Battery Level Reserve

6.2 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

e.g. 0xFF88 is -120 (-12℃), Network byte order mode is {04 FF 88}
6.3 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
0x07| Air Pressure| 4-byte signed integer. The default unit is PA

Local Configuration:

Note: Factory reset data uploading is every 10 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 Sensor Tool Manual.

doc.rejeee.com/web/#/32?page_id=346

References

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