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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 111.3
edited by Karry Zhuang
on 2024/04/29 15:59
Change comment: There is no comment for this version
To version 119.4
edited by Karry Zhuang
on 2024/04/30 16:19
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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316 316  
317 317  Each AIS Sensor is shipped with a sticker with the default DEV EUI as below:
318 318  
319 -[[image:image-20230426083617-1.png||height="294" width="633"]]
321 +[[image:image-20240430155056-2.png||height="207" width="450"]]
320 320  
321 321  Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
322 322  
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326 326  
327 327  Add APP KEY and DEV EUI
328 328  
329 -[[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
331 +[[image:image-20240430155117-3.png||height="544" width="563"]]
330 330  
331 -[[image:1655776122894-257.png]]
333 +[[image:image-20240430154736-1.png||height="414" width="658"]]
332 332  
335 +
333 333  **Default mode OTAA**
334 334  
338 +[[image:image-20240430155302-4.png||height="630" width="453"]]
335 335  
336 -
337 -
338 -[[image:1655776241177-240.png]]
339 -
340 340  **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.
341 341  
342 342  === 3.1.1 Uplink Payload (Fport~=5) ===
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379 379  
380 380  These four bytes display the integers in the digital wheel face
381 381  
382 -[[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]][[image:1714374445395-196.png]]
382 +[[image:1714374445395-196.png]]
383 383  
384 384  Read table integer：0x00000002=2
385 385  
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387 387  
388 388  These four bytes display decimals on the digital wheel.
389 389  
390 -[[image:1714374493101-914.png]][[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]
390 +[[image:1714374493101-914.png]]
391 391  
392 392  Read table decimals：0x005E3B0/1000000= 0.385968
393 393  
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394 394  
395 395  == (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) ==
396 396  
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.
397 397  
399 +=== 3.2.1 The image packets are obtained by TTN ===
400 +
401 +Make sure that node ACK is on: AT+PNACKMD=1 or 34 01
402 +
403 +Then send the graph instruction 0B 01.
404 +
405 +
406 +
407 +
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