Dragino LSE01, Руководство пользователя

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LSE01 LoRaWAN Soil Moisture & EC Sensor User Manual 13
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If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/100 = 2.61 °C
If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
2.3.4 Soil Conductivity (EC)
Obtain soluble salt concentration in soil or soluble ion concentration in liquid fertilizer or
planting medium ,. The value range of the register is 0 - 20000(Decimal)( Can be greater than
20000).
For example, if the data you get from the register is 0x00 0xC8, the soil conductivity is
00C8(H) = 200(D) = 200 uS/cm.
Generally, the EC value of irrigation water is less than 800uS / cm.
2.3.5 Decode payload in The Things Network
While using TTN network, you can add the payload format to decode the payload.
The payload decoder function for TTN is here:
LSE01 TTN Payload Decoder:
http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decod
er/
2.4 Uplink Interval
The LSE01 by default uplink the sensor data every 20 minutes. User can change this interval
by AT Command or LoRaWAN Downlink Command. See this link:
http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Comm
ands#Change_Uplink_Interval
2.5 Downlink Payload
By default, LSE50 prints the downlink payload to console port.
Downlink Control Type FPort Type Code Downlink payload size(bytes)
TDC (Transmit Time Interval) Any 01 4
RESET Any 04 2