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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 111.2
edited by Karry Zhuang
on 2024/04/29 15:08
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To version 119.3
edited by Karry Zhuang
on 2024/04/30 16:18
Change comment: There is no comment for this version

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27 27  
28 28  === 2.1.2 Fix Sensor to a Water Meter ===
29 29  
30 -The assembly necessitates the use of two screws, two spacers, and this specific device. Additionally, there are AIS Sensors available along with TTL adapters for AIS Sensors.
30 +The assembly necessitates the use of two screws, two spacers, and this specific device.
31 31  
32 +Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors.
33 +
32 32  The fixture below is just a demo, user might adjust it with their water meter. Here is the STEP file for the fixture as below: [[Water Meter Fixture Demo>>https://www.dropbox.com/scl/fo/p1ykgysrv8p454swsh4zj/AHCYr5pcOM0WNad4fT1sf_I?rlkey=7x964q1tuvh0ezbhgxb9b2zqg&st=wxxq87t3&dl=0]].
33 33  
34 34  [[image:image-20240428163842-3.png||height="425" width="609"]] [[image:image-20240428155254-1.png||height="424" width="358"]]
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307 307  
308 308  == (% title="Click and drag to resize" %)3.1 Get Digital Reading After Calibration(%%) ==
309 309  
312 +This section shows an example for how to join the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
310 310  
314 +
315 +Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the AIS Sensor device in TTN V3 portal. 
316 +
317 +**Step 1**:  Create a device in TTN V3 with the OTAA keys from AIS Sensor.
318 +
319 +Each AIS Sensor is shipped with a sticker with the default DEV EUI as below:
320 +
321 +[[image:image-20240430155056-2.png||height="207" width="450"]]
322 +
323 +Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
324 +
325 +Add APP EUI in the application.
326 +
327 +choose to create the device manually.
328 +
329 +Add APP KEY and DEV EUI
330 +
331 +[[image:image-20240430155117-3.png||height="544" width="563"]]
332 +
333 +[[image:image-20240430154736-1.png||height="414" width="658"]]
334 +
335 +
336 +**Default mode OTAA**
337 +
338 +[[image:image-20240430155302-4.png||height="630" width="453"]]
339 +
340 +**Step 2**:  Use ACT button to activate LHT52 and it will auto join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
341 +
311 311  === 3.1.1 Uplink Payload (Fport~=5) ===
312 312  
313 313  The uplink payload includes totally 14 bytes. Uplink packets use FPORT=5 and (% style="color:#4472c4" %)**every 20 minutes**(%%) send one uplink by default.
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348 348  
349 349  These four bytes display the integers in the digital wheel face
350 350  
351 -[[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]][[image:1714374445395-196.png]]
382 +[[image:1714374445395-196.png]]
352 352  
353 353  Read table integer：0x00000002=2
354 354  
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356 356  
357 357  These four bytes display decimals on the digital wheel.
358 358  
359 -[[image:1714374493101-914.png]][[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]
390 +[[image:1714374493101-914.png]]
360 360  
361 361  Read table decimals：0x005E3B0/1000000= 0.385968
362 362  
363 363  
364 364  == (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) ==
396 +
397 +To get the AIS current image on the PC, you can issue commands through TTN or connect AIS to your PC with TTL to send commands through the serial port to obtain relevant data packets.
398 +
399 +=== 3.2.1 The image packets are obtained by TTN ===
400 +
401 +In TTN, make sure that node ACK is on: AT+PNACKMD=1 or 34 01
402 +
403 +Then send the graph instruction 0B 01.
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