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Last modified by Xiaoling on 2025/04/27 16:45
From version 170.1
edited by Xiaoling
on 2022/06/15 09:37
Change comment: Uploaded new attachment "1655257026882-201.png", version {1}
To version 170.4
edited by Xiaoling
on 2022/06/15 09:40
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204 -== 1.6  Pin mapping and power on ==
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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207 -[[image:1654847583902-256.png]]
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212 +== 1.8  Pin mapping and power on ==
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211 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
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215 +[[image:1655257026882-201.png]]
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219 += 2.  Configure LDDS20 to connect to LoRaWAN network =
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221 +
213 213  == 2.1  How it works ==
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215 215  (((
216 -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.
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220 -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.
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