Last modified by Kilight Cao on 2024/10/12 08:58
<
From version < 101.1 >
edited by Edwin Chen
on 2022/11/14 19:39
To version < 100.1 >
edited by Kilight Cao
on 2022/11/12 16:43
>
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1 -XWiki.Edwin
1 +XWiki.Kilight
Content
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283 283  )))
284 284  
285 285  
286 -== **5.2 Example: LG01v2** ==
286 +== **5.2 Example: LG01**-**V2 Peer-to-Peer** ==
287 287  
288 -=== **5.2.1 Introduce for the example:** ===
289 289  
290 290  [[image:image-20221104102736-3.png||height="282" width="723"]]
291 291  
292 292  
293 -In this example, there are two devices:
292 +The user can run the AT command to set the LG01-V2 RX window always open as a Receiver, The LG01-V2 can display the received data in the built-in server Node-Red, Here are the specific steps:
294 294  
295 -* **LA66 Shield + UNO + DHT11**: The UNO will get the temperature and humidity and broadcast the value via LoRa protocol.
296 -* **LG01v2** : LG01v2 is set to listening the LoRa Channel which LA66 is broadcasting. When LG01v2 get the data from LA66, LG01v2 will plot the data in built-in IoT server.
294 +(% style="color:red" %)**Prerequisites: **(%%)The configuration of LG01-V2 and  LA66 Shield must match and the LA66 Shield firmware is **[[LA66 Peer-to-Peer firmware>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]]**, users can use **AT+CFG** to check all configurations.
297 297  
298 298  
299 -=== 5.2.2 Set Up LA66 Shield + UNO ===
297 +=== **Log Temperature Sensor(DHT11) and send data to LG01-V2, show it in Node-RED.** ===
300 300  
301 301  
302 -==== **Set up LA66 Module** ====
300 +(% style="color:red; font-weight:bold" %)**LG01-V**(% style="color:red" %)**2 as Receiver: (configured as AT+RXMOD=65535,2)**
303 303  
304 -LA66 Module is loaded with the firmware **[[LA66 Peer-to-Peer firmware>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]] **and user can use AT Command to set up LA66 with below parameters:
305 -
302 +(% class="box infomessage" %)
306 306  (((
304 +**LG01-V2 configuration:**
305 +
306 +AT+FRE=868.100,868.100  ~-~--> TX and RX frequency set: 868100000
307 +AT+BW=0,0  ~-~--> TX and RX Bandwidth set: 125kHz
308 +AT+SF=12,12  ~-~--> TX and RX Spreading Factor set: SF12
309 +AT+POWER=14  ~-~--> TX Power Range set: 14dBm
310 +AT+CRC=1,1  ~-~--> TX and RX CRC Type
311 +AT+HEADER=0,0  ~-~--> TX and RX Header Type
312 +AT+CR=1,1  ~-~--> TX and RX Coding Rate
313 +AT+IQ=0,0  ~-~--> TX and RX InvertIQ
314 +AT+PREAMBLE=8,8  ~-~--> TX and RX Preamble Length set: 8
315 +AT+SYNCWORD=0  ~-~-->  Syncword**(0: private，1: public)**
316 +AT+RXMOD=65535,0  ~-~-->  Rx Timeout and Reply mode, RX window always open
317 +)))
318 +
319 +
307 307  (% style="color:red" %)**LA66 Shield as Sender: **
308 308  
309 309  (% class="box infomessage" %)
... ... @@ -325,10 +325,20 @@
325 325  )))
326 326  
327 327  
328 -==== **Set up Arduino UNO** ====
341 +After the above configuration is complete, users can send test simulation data to check whether the configuration is correct, In LA66 sheild serial console send:(% style="color:red" %)**(AT+SEND=1,hello world,2,3).**
329 329  
330 -(% id="cke_bm_1033249S" style="display:none" %)** **(%%)**Hardware Connection**
343 +When LG01-V2 replies with ACK when it receives a packet sent by LA66 sheild.
331 331  
345 +[[image:image-20221108164413-2.png]]
346 +
347 +
348 +In the real-time log of LG01-V2：
349 +
350 +[[image:image-20221108170314-3.png]]
351 +
352 +
353 +**Hardware Connection**
354 +
332 332  (% class="box infomessage" %)
333 333  (((
334 334  **The DHT11 sensor connects to the LA66 Shield:**
... ... @@ -341,13 +341,14 @@
341 341  [[image:image-20221108170731-5.png||height="588" width="441"]]
342 342  
343 343  
344 -===== **1. Open Arduino IDE** =====
367 +==== **1. Open Arduino IDE** ====
345 345  
346 346  [[image:image-20221108172149-6.png||height="650" width="542"]]
347 347  
348 348  
349 -===== **2. Open project** =====
372 +==== **2. Open project** ====
350 350  
374 +
351 351  Users can download Arduino files from this link: [[attach:Log-Temperature-Sensor-and-send-data-to-Node-red.ino||target="_blank"]]
352 352  
353 353  Then click Compile and Upload to LA66 Shield,
... ... @@ -355,66 +355,21 @@
355 355  [[image:image-20221108172432-7.png]]
356 356  
357 357  
358 -===== **3. Open the Serial Monitor to check the LA66 Shield data** =====
382 +==== **3. Open the Serial Monitor to check the LA66 Shield data** ====
359 359  
360 -The UNO will now reads the temperature and humidity data from the sensor and broadcast it via LoRa wireless,
361 361  
385 +The LA66 Shield reads the temperature and humidity data from the sensor and sends it to LG01-V2,
386 +
362 362  [[image:image-20221108174840-8.png||height="731" width="671"]]
363 363  
364 -
365 -Sending out data as below.
366 -
367 367  [[image:image-20221108175113-9.png||height="556" width="998"]]
368 368  
369 369  
392 +==== **4. Import the flow to the built-in server on LG01-V2** ====
370 370  
371 -=== 5.2.3 Set Up LG01v2 ===
372 372  
395 +Users can import this example in Node-Red: [[attach:Log-Temperature-Sensor-and-send-data-to-node-red.json||target="_blank"]]
373 373  
374 -Configure LG01v2 LoRa channel parameters so it can get data from LA66 Shield
375 -
376 -(% style="color:red; font-weight:bold" %)**LG01v**(% style="color:red" %)**2 as Receiver: (configured as AT+RXMOD=65535,2)**
377 -
378 -(% class="box infomessage" %)
379 -(((
380 -**LG01-V2 configuration:**
381 -
382 -AT+FRE=868.100,868.100  ~-~--> TX and RX frequency set: 868100000
383 -AT+BW=0,0  ~-~--> TX and RX Bandwidth set: 125kHz
384 -AT+SF=12,12  ~-~--> TX and RX Spreading Factor set: SF12
385 -AT+POWER=14  ~-~--> TX Power Range set: 14dBm
386 -AT+CRC=1,1  ~-~--> TX and RX CRC Type
387 -AT+HEADER=0,0  ~-~--> TX and RX Header Type
388 -AT+CR=1,1  ~-~--> TX and RX Coding Rate
389 -AT+IQ=0,0  ~-~--> TX and RX InvertIQ
390 -AT+PREAMBLE=8,8  ~-~--> TX and RX Preamble Length set: 8
391 -AT+SYNCWORD=0  ~-~-->  Syncword**(0: private，1: public)**
392 -AT+RXMOD=65535,0  ~-~-->  Rx Timeout and Reply mode, RX window always open
393 -)))
394 -
395 -
396 -=== 5.2.4 Test result ===
397 -
398 -After the above configuration is complete, users can send test simulation data to check whether the configuration is correct, In LA66 sheild serial console send:(% style="color:red" %)**(AT+SEND=1,hello world,2,3).**
399 -)))
400 -
401 -When LG01v2 replies with ACK when it receives a packet sent by LA66 sheild.
402 -
403 -[[image:image-20221108164413-2.png]]
404 -
405 -
406 -In the real-time log of LG01v2：
407 -
408 -[[image:image-20221108170314-3.png]]
409 -
410 -
411 -=== **5.2.5 Plot data chart in LG01v2** ===
412 -
413 -
414 -User can plot the temperature and humidity chat via LG01v2 built-in IoT server.
415 -
416 -User can import this example in Node-Red: [[attach:Log-Temperature-Sensor-and-send-data-to-node-red.json||target="_blank"]]
417 -
418 418  [[image:image-20221108180334-10.png||height="651" width="1141"]]
419 419  
420 420  
... ... @@ -425,7 +425,7 @@
425 425  [[image:image-20221108180458-11.png||height="402" width="1137"]]
426 426  
427 427  
428 -= (% style="color:inherit; font-family:inherit; font-size:29px" %)**6. How users can access LG01**(%%)**v(% style="color:inherit; font-family:inherit; font-size:29px" %)2 using serial USB(%%)** =
407 += (% style="color:inherit; font-family:inherit; font-size:29px" %)**6. How users can access LG01**(%%)**-V(% style="color:inherit; font-family:inherit; font-size:29px" %)2 using serial USB(%%)** =
429 429  
430 430  
431 431  (% style="color:blue" %)**USB TTL to LG01-V2  Connection:**

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