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Last modified by Xiaoling on 2025/04/27 16:45
From version 169.7
edited by Xiaoling
on 2022/06/15 09:34
Change comment: There is no comment for this version
To version 170.4
edited by Xiaoling
on 2022/06/15 09:40
Change comment: There is no comment for this version

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197 -== 1.5 ​ Applications ==
197 +== 1.6 ​ Applications ==
198 198  
199 -* Horizontal distance measurement
200 -* Liquid level measurement
201 -* Parking management system
202 -* Object proximity and presence detection
203 -* Intelligent trash can management system
204 -* Robot obstacle avoidance
205 -* Automatic control
206 -* Sewer
207 -* Bottom water level monitoring
199 +* Smart liquid control solution.
200 +* Smart liquefied gas solution.
208 208  
209 -== 1.6  Pin mapping and power on ==
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212 -[[image:1654847583902-256.png]]
204 +== 1.7  Precautions ==
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206 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
207 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
208 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
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216 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
217 217  
212 +== 1.8  Pin mapping and power on ==
213 +
214 +
215 +[[image:1655257026882-201.png]]
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217 +
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219 += 2.  Configure LDDS20 to connect to LoRaWAN network =
220 +
221 +
218 218  == 2.1  How it works ==
219 219  
220 220  (((
221 -The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
225 +The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
222 222  )))
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224 224  (((
225 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
229 +In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0UsingtheATCommands"]]to set the keys in the LDDS20.
226 226  )))
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