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Last modified by Xiaoling on 2025/04/27 16:45
From version 170.7
edited by Xiaoling
on 2022/06/15 09:47
Change comment: There is no comment for this version
To version 169.4
edited by Xiaoling
on 2022/06/15 09:28
Change comment: There is no comment for this version

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145 145  [[image:image-20220615092044-12.png]]
146 146  
147 147  
148 +(% style="color:blue" %)**Step3:  **(%%)Test the installation point.
148 148  
149 -(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
150 -
151 151  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.
152 152  
153 153  
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174 174  (% 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.
175 175  
176 176  
176 +(% style="color:blue" %)**Step4:  **(%%)Install use Epoxy ab glue.
177 177  
178 -(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
178 +[[image:image-20220615091045-8.png]]
179 179  
180 180  Prepare Eproxy AB glue.
181 181  
182 +
182 182  Put Eproxy AB glue in the sensor and press it hard on the container installation point.
183 183  
185 +
184 184  Reset LDDS20 and see if the BLUE LED is slowly blinking.
185 185  
186 -[[image:image-20220615091045-8.png||height="226" width="380"]] [[image:image-20220615091045-9.png||height="239" width="339"]]
188 +[[image:image-20220615091045-9.png]]
187 187  
190 +(% style="color:red" %)Note1:
188 188  
189 -(% style="color:red" %)**Note 1:**
190 -
191 191  Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
192 192  
193 193  
194 -(% style="color:red" %)**Note 2:**
195 +(% style="color:red" %)Note 2:
195 195  
196 -(% style="color:red" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
197 +(% style="color:blue" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
197 197  
198 198  
199 199  
200 -== 1.6 ​ Applications ==
201 201  
202 -* Smart liquid control solution.
203 -* Smart liquefied gas solution.
204 204  
205 205  
204 +== 1.5 ​ Applications ==
206 206  
207 -== 1.7  Precautions ==
206 +* Horizontal distance measurement
207 +* Liquid level measurement
208 +* Parking management system
209 +* Object proximity and presence detection
210 +* Intelligent trash can management system
211 +* Robot obstacle avoidance
212 +* Automatic control
213 +* Sewer
214 +* Bottom water level monitoring
208 208  
209 -* 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.
210 -* 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.
211 -* 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.
216 +== 1.6  Pin mapping and power on ==
212 212  
213 213  
219 +[[image:1654847583902-256.png]]
214 214  
215 -== 1.8  Pin mapping and power on ==
216 216  
217 217  
218 -[[image:1655257026882-201.png]]
223 += 2.  Configure LDDS75 to connect to LoRaWAN network =
219 219  
220 -
221 -
222 -= 2.  Configure LDDS20 to connect to LoRaWAN network =
223 -
224 -
225 225  == 2.1  How it works ==
226 226  
227 227  (((
228 -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.
228 +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
229 229  )))
230 230  
231 231  (((
232 -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.
232 +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.
233 233  )))
234 234  
235 235  
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