<
From version < 73.8 >
edited by Xiaoling
on 2022/06/07 17:31
To version < 73.14 >
edited by Xiaoling
on 2022/06/07 17:41
>
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73 73  == 1.1 ​What is LoRaWAN Soil pH Sensor ==
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75 75  The Dragino LSPH01 is a (% style="color:#4f81bd" %)**LoRaWAN Soil pH Sensor**(%%) for IoT of Agriculture. It is designed to measure the soil PH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
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77 77  LSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** (% style="color:#4f81bd" %)pH (%%)**with high accuracy and stable value. The LSPH01 probe can be buried into soil for long time use.
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79 79  The LoRa wireless technology used in LSPH01 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
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81 81  LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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83 83  Each LSPH01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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85 85  
86 86  [[image:1654592435432-887.png]]
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211 211  [[image:image-20220607170442-2.png]]
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214 214  (% style="color:blue" %)**Step 3**(%%)**:** The LSPH01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
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215 215  
216 216  [[image:1654592697690-910.png]]
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219 219  
220 220  == 2.3 ​Uplink Payload ==
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222 222  LSPH01 will uplink payload via LoRaWAN with below payload format: 
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223 223  
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224 224  Uplink payload includes in total 11 bytes.
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225 225  
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226 226  Normal uplink payload:
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227 227  
228 228  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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617 617  * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
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620 620  === 2.8.5 AS920-923 & AS923-925 (AS923) ===
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622 622  (% style="color:blue" %)**Default Uplink channel:**
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732 732  * Blink once when device transmit a packet.
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735 735  == 2.10 ​Firmware Change Log ==
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827 827  * Reply to the confirmation package: 26 01
828 828  * Reply to non-confirmed packet: 26 00
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830 830  Device will send an uplink after got this downlink command. With below payload:
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832 832  Configures info payload:
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