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Last modified by Xiaoling on 2025/04/27 16:45
From version 169.5
edited by Xiaoling
on 2022/06/15 09:34
Change comment: There is no comment for this version
To version 170.6
edited by Xiaoling
on 2022/06/15 09:46
Change comment: There is no comment for this version

Summary

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101 101  * 8500mAh Battery for long term use
102 102  
103 103  
104 +
104 104  == 1.3  Suitable Container & Liquid ==
105 105  
106 106  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
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111 111  * Pure liquid without irregular deposition.
112 112  
113 113  
115 +
114 114  == 1.4  Mechanical ==
115 115  
116 116  [[image:image-20220615090910-1.png]]
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143 143  [[image:image-20220615092044-12.png]]
144 144  
145 145  
148 +
146 146  (% style="color:blue" %)**Step3:   **(%%)Test the installation point.
147 147  
148 148  Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
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171 171  (% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
172 172  
173 173  
177 +
174 174  (% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
175 175  
176 -
177 177  Prepare Eproxy AB glue.
178 178  
179 179  Put Eproxy AB glue in the sensor and press it hard on the container installation point.
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182 182  
183 183  [[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
184 184  
188 +
185 185  (% style="color:red" %)**Note 1:**
186 186  
187 187  Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
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193 193  
194 194  
195 195  
200 +== 1.6 ​ Applications ==
196 196  
202 +* Smart liquid control solution.
203 +* Smart liquefied gas solution.
197 197  
198 198  
199 -== 1.5 ​ Applications ==
206 +== 1.7  Precautions ==
200 200  
201 -* Horizontal distance measurement
202 -* Liquid level measurement
203 -* Parking management system
204 -* Object proximity and presence detection
205 -* Intelligent trash can management system
206 -* Robot obstacle avoidance
207 -* Automatic control
208 -* Sewer
209 -* Bottom water level monitoring
208 +* 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.
209 +* 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.
210 +* 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.
210 210  
211 -== 1.6  Pin mapping and power on ==
212 212  
213 +== 1.8  Pin mapping and power on ==
213 213  
214 -[[image:1654847583902-256.png]]
215 215  
216 +[[image:1655257026882-201.png]]
216 216  
217 217  
218 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
219 219  
220 += 2.  Configure LDDS20 to connect to LoRaWAN network =
221 +
222 +
220 220  == 2.1  How it works ==
221 221  
222 222  (((
223 -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
226 +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.
224 224  )))
225 225  
226 226  (((
227 -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.
230 +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.
228 228  )))
229 229  
230 230  
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