Last modified by Kilight Cao on 2024/10/12 08:58
<
From version < 92.1 >
edited by Kilight Cao
on 2022/11/09 15:09
To version < 100.1 >
edited by Kilight Cao
on 2022/11/12 16:43
>
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Content
... ... @@ -442,7 +442,7 @@
442 442  == **7.1 How does LG01-V2 communicate with Lora shield (LoRa.h)** ==
443 443  
444 444  
445 -This example describes how to use LG01-V2, LoRa Shield to set up a LoRa network
445 +This example describes how to use LG01-V2, LoRa Shield to set up a LoRa network,
446 446  
447 447  [[image:image-20221103152238-8.png||height="251" width="654"]]
448 448  
... ... @@ -484,6 +484,44 @@
484 484  [[image:image-20221101162527-4.png]]
485 485  
486 486  
487 +== **7.2 How does LG01-V2 communicate with Heltec LoRa Node** ==
488 +
489 +
490 +This example describes how to use LG01-V2 and Heltec LoRa Node to set up a LoRa network,
491 +
492 +[[image:image-20221112161111-2.png||height="258" width="692"]]
493 +
494 +(% style="color:red" %)**Prerequisites: The configurations of LG01-V2 and Lora shield must match**
495 +
496 +**LG01-V2 configuration:**
497 +
498 +(% class="box infomessage" %)
499 +(((
500 +AT+FRE=868.100,868.100  ~-~--> TX and RX frequency set: 868100000
501 +AT+BW=0,0  ~-~--> TX and RX Bandwidth set: 125kHz
502 +AT+SF=12,12  ~-~--> TX and RX Spreading Factor set: SF12
503 +AT+POWER=14  ~-~--> TX Power Range
504 +AT+CRC=1,1  ~-~--> TX and RX CRC Type
505 +AT+HEADER=0,0  ~-~--> TX and RX Header Type
506 +AT+CR=1,1  ~-~--> TX and RX Coding Rate
507 +AT+IQ=0,0  ~-~--> TX and RX InvertIQ
508 +AT+PREAMBLE=8,8  ~-~--> TX and RX Preamble Length set: 8
509 +AT+SYNCWORD=0  ~-~-->  Syncword**(0: private，1: public), **the corresponding Lora shield syncword is 0x12
510 +AT+RXMOD=65535,0  ~-~-->  Rx Timeout and Reply mode,RX window always open
511 +AT+RXDAFORM=1  ~-~--> RX data format**（0: Hex ,1: String）**
512 +)))
513 +
514 +After we upload the sketch to Heltec LoRa Node, we can see below output from Arduino.
515 +
516 +Lora Shield example: [[attach:LoRa_send_trial.ino||target="_blank"]]
517 +
518 +[[image:image-20221112162733-3.png||height="524" width="927"]]
519 +
520 +
521 +And we can see the logread of gateway as below, means the packet arrive gateway:
522 +
523 +[[image:image-20221112163119-4.png||height="808" width="560"]]
524 +
487 487  = (% style="color:inherit; font-family:inherit; font-size:29px" %)**8. Supports**(%%) =
488 488  
489 489  
Log-Temperature-Sensor-and-send-data-to-node-red.json
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1 1  [
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3 + "id": "5f10779accc05655",
4 + "type": "tab",
5 + "label": "serial USB",
6 + "disabled": false,
7 + "info": "",
8 + "env": []
9 + },
10 + {
3 3   "id": "4ea60ce4df40717c",
4 4   "type": "serial in",
5 5   "z": "5f10779accc05655",
... ... @@ -15,6 +15,364 @@
15 15   ]
16 16   },
17 17   {
26 + "id": "fe5a93a52b6adcf1",
27 + "type": "inject",
28 + "z": "5f10779accc05655",
29 + "name": "AT+SEND=1,hello world,0,3",
30 + "props": [
31 + {
32 + "p": "payload"
33 + }
34 + ],
35 + "repeat": "",
36 + "crontab": "",
37 + "once": false,
38 + "onceDelay": 0.1,
39 + "topic": "",
40 + "payload": "AT+SEND=1,hello world,0,3",
41 + "payloadType": "str",
42 + "x": 220,
43 + "y": 260,
44 + "wires": [
45 + [
46 + "3f8add7e2e1d1d17"
47 + ]
48 + ]
49 + },
50 + {
51 + "id": "3f8add7e2e1d1d17",
52 + "type": "serial out",
53 + "z": "5f10779accc05655",
54 + "name": "",
55 + "serial": "bb1c0e81fd51fa9e",
56 + "x": 540,
57 + "y": 260,
58 + "wires": []
59 + },
60 + {
61 + "id": "16e7d3d83d9e9415",
62 + "type": "inject",
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65 + "props": [
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67 + "p": "payload"
68 + }
69 + ],
70 + "repeat": "",
71 + "crontab": "",
72 + "once": false,
73 + "onceDelay": 0.1,
74 + "topic": "",
75 + "payload": "ATZ",
76 + "payloadType": "str",
77 + "x": 290,
78 + "y": 320,
79 + "wires": [
80 + [
81 + "3f8add7e2e1d1d17"
82 + ]
83 + ]
84 + },
85 + {
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89 + "name": "AT+FRE",
90 + "props": [
91 + {
92 + "p": "payload"
93 + }
94 + ],
95 + "repeat": "",
96 + "crontab": "",
97 + "once": false,
98 + "onceDelay": 0.1,
99 + "topic": "",
100 + "payload": "AT+FRE=868.100,868.100",
101 + "payloadType": "str",
102 + "x": 280,
103 + "y": 380,
104 + "wires": [
105 + [
106 + "3f8add7e2e1d1d17"
107 + ]
108 + ]
109 + },
110 + {
111 + "id": "5167a7f904013ffd",
112 + "type": "inject",
113 + "z": "5f10779accc05655",
114 + "name": "AT+BW",
115 + "props": [
116 + {
117 + "p": "payload"
118 + }
119 + ],
120 + "repeat": "",
121 + "crontab": "",
122 + "once": false,
123 + "onceDelay": 0.1,
124 + "topic": "",
125 + "payload": "AT+BW=0,0",
126 + "payloadType": "str",
127 + "x": 290,
128 + "y": 440,
129 + "wires": [
130 + [
131 + "3f8add7e2e1d1d17"
132 + ]
133 + ]
134 + },
135 + {
136 + "id": "dbe4abbc730c76e6",
137 + "type": "inject",
138 + "z": "5f10779accc05655",
139 + "name": "AT+SF",
140 + "props": [
141 + {
142 + "p": "payload"
143 + }
144 + ],
145 + "repeat": "",
146 + "crontab": "",
147 + "once": false,
148 + "onceDelay": 0.1,
149 + "topic": "",
150 + "payload": "AT+SF=12,12",
151 + "payloadType": "str",
152 + "x": 290,
153 + "y": 500,
154 + "wires": [
155 + [
156 + "3f8add7e2e1d1d17"
157 + ]
158 + ]
159 + },
160 + {
161 + "id": "3be3ab296a75d512",
162 + "type": "inject",
163 + "z": "5f10779accc05655",
164 + "name": "AT+RXMOD",
165 + "props": [
166 + {
167 + "p": "payload"
168 + }
169 + ],
170 + "repeat": "",
171 + "crontab": "",
172 + "once": false,
173 + "onceDelay": 0.1,
174 + "topic": "",
175 + "payload": "AT+RXMOD=65535,2",
176 + "payloadType": "str",
177 + "x": 270,
178 + "y": 560,
179 + "wires": [
180 + [
181 + "3f8add7e2e1d1d17"
182 + ]
183 + ]
184 + },
185 + {
186 + "id": "7a03d1413c60ea1c",
187 + "type": "inject",
188 + "z": "5f10779accc05655",
189 + "name": "AT+SYNCWORD",
190 + "props": [
191 + {
192 + "p": "payload"
193 + }
194 + ],
195 + "repeat": "",
196 + "crontab": "",
197 + "once": false,
198 + "onceDelay": 0.1,
199 + "topic": "",
200 + "payload": "AT+SYNCWORD=0",
201 + "payloadType": "str",
202 + "x": 260,
203 + "y": 620,
204 + "wires": [
205 + [
206 + "3f8add7e2e1d1d17"
207 + ]
208 + ]
209 + },
210 + {
211 + "id": "40eac96a52733f7a",
212 + "type": "function",
213 + "z": "5f10779accc05655",
214 + "name": "function 1",
215 + "func": "var data = msg.payload\nif (data.substring(0, 4) == \"Data\")\n{\n if (data.substring(6, 12) == \"(HEX:)\")\n {\n var temp = data.substring(13, 15) + data.substring(16, 18)\n var hum = data.substring(19, 21) + data.substring(22, 24)\n var temp1 = parseInt(temp, 16)/100\n var hum1 = parseInt(hum, 16)/10\n var a1 = { payload: temp1 }, a2 = { payload: hum1 }\n }\n}\nif (data.substring(0, 4) == \"Rssi\")\n{\n var rssi = data.substring(6)\n var a3 = { payload: rssi }\n}\nreturn [a1,a2,a3];\n \n\n",
216 + "outputs": 3,
217 + "noerr": 0,
218 + "initialize": "",
219 + "finalize": "",
220 + "libs": [],
221 + "x": 420,
222 + "y": 60,
223 + "wires": [
224 + [
225 + "81edb003937f1a92"
226 + ],
227 + [
228 + "c63593404a60d9dc"
229 + ],
230 + [
231 + "61ca71032888887b"
232 + ]
233 + ]
234 + },
235 + {
236 + "id": "61ca71032888887b",
237 + "type": "ui_chart",
238 + "z": "5f10779accc05655",
239 + "name": "",
240 + "group": "ef41b39771110fa5",
241 + "order": 1,
242 + "width": 0,
243 + "height": 0,
244 + "label": "RSSI",
245 + "chartType": "line",
246 + "legend": "false",
247 + "xformat": "dd HH:mm",
248 + "interpolate": "linear",
249 + "nodata": "",
250 + "dot": true,
251 + "ymin": "",
252 + "ymax": "",
253 + "removeOlder": 1,
254 + "removeOlderPoints": "",
255 + "removeOlderUnit": "3600",
256 + "cutout": 0,
257 + "useOneColor": false,
258 + "useUTC": false,
259 + "colors": [
260 + "#1f77b4",
261 + "#aec7e8",
262 + "#ff7f0e",
263 + "#2ca02c",
264 + "#98df8a",
265 + "#d62728",
266 + "#ff9896",
267 + "#9467bd",
268 + "#c5b0d5"
269 + ],
270 + "outputs": 1,
271 + "useDifferentColor": false,
272 + "className": "",
273 + "x": 670,
274 + "y": 180,
275 + "wires": [
276 + []
277 + ]
278 + },
279 + {
280 + "id": "81edb003937f1a92",
281 + "type": "ui_chart",
282 + "z": "5f10779accc05655",
283 + "name": "",
284 + "group": "7e1d1c102cf74e6b",
285 + "order": 1,
286 + "width": 0,
287 + "height": 0,
288 + "label": "Temperature",
289 + "chartType": "line",
290 + "legend": "false",
291 + "xformat": "HH:mm:ss",
292 + "interpolate": "linear",
293 + "nodata": "",
294 + "dot": true,
295 + "ymin": "",
296 + "ymax": "",
297 + "removeOlder": 1,
298 + "removeOlderPoints": "",
299 + "removeOlderUnit": "3600",
300 + "cutout": 0,
301 + "useOneColor": false,
302 + "useUTC": false,
303 + "colors": [
304 + "#1f77b4",
305 + "#aec7e8",
306 + "#ff7f0e",
307 + "#2ca02c",
308 + "#98df8a",
309 + "#d62728",
310 + "#ff9896",
311 + "#9467bd",
312 + "#c5b0d5"
313 + ],
314 + "outputs": 1,
315 + "useDifferentColor": false,
316 + "className": "",
317 + "x": 690,
318 + "y": 100,
319 + "wires": [
320 + []
321 + ]
322 + },
323 + {
324 + "id": "c63593404a60d9dc",
325 + "type": "ui_chart",
326 + "z": "5f10779accc05655",
327 + "name": "",
328 + "group": "3f5d139f158d7c1c",
329 + "order": 2,
330 + "width": 0,
331 + "height": 0,
332 + "label": "Humidity",
333 + "chartType": "line",
334 + "legend": "false",
335 + "xformat": "HH:mm:ss",
336 + "interpolate": "linear",
337 + "nodata": "",
338 + "dot": true,
339 + "ymin": "",
340 + "ymax": "",
341 + "removeOlder": 1,
342 + "removeOlderPoints": "",
343 + "removeOlderUnit": "3600",
344 + "cutout": 0,
345 + "useOneColor": false,
346 + "useUTC": false,
347 + "colors": [
348 + "#1f77b4",
349 + "#aec7e8",
350 + "#ff7f0e",
351 + "#2ca02c",
352 + "#98df8a",
353 + "#d62728",
354 + "#ff9896",
355 + "#9467bd",
356 + "#c5b0d5"
357 + ],
358 + "outputs": 1,
359 + "useDifferentColor": false,
360 + "className": "",
361 + "x": 680,
362 + "y": 140,
363 + "wires": [
364 + []
365 + ]
366 + },
367 + {
368 + "id": "79722a224bb22c96",
369 + "type": "debug",
370 + "z": "5f10779accc05655",
371 + "name": "debug 1",
372 + "active": true,
373 + "tosidebar": true,
374 + "console": false,
375 + "tostatus": false,
376 + "complete": "false",
377 + "statusVal": "",
378 + "statusType": "auto",
379 + "x": 420,
380 + "y": 180,
381 + "wires": []
382 + },
383 + {
18 18   "id": "bb1c0e81fd51fa9e",
19 19   "type": "serial-port",
20 20   "serialport": "/dev/ttyUSB0",
... ... @@ -32,5 +32,46 @@
32 32   "out": "char",
33 33   "addchar": "\\r\\n",
34 34   "responsetimeout": "10000"
401 + },
402 + {
403 + "id": "ef41b39771110fa5",
404 + "type": "ui_group",
405 + "name": "rssi",
406 + "tab": "abb98f80600a5448",
407 + "order": 3,
408 + "disp": true,
409 + "width": "6",
410 + "collapse": false,
411 + "className": ""
412 + },
413 + {
414 + "id": "7e1d1c102cf74e6b",
415 + "type": "ui_group",
416 + "name": "TEM",
417 + "tab": "abb98f80600a5448",
418 + "order": 4,
419 + "disp": true,
420 + "width": "6",
421 + "collapse": false,
422 + "className": ""
423 + },
424 + {
425 + "id": "3f5d139f158d7c1c",
426 + "type": "ui_group",
427 + "name": "HUM",
428 + "tab": "abb98f80600a5448",
429 + "order": 2,
430 + "disp": true,
431 + "width": "6",
432 + "collapse": false,
433 + "className": ""
434 + },
435 + {
436 + "id": "abb98f80600a5448",
437 + "type": "ui_tab",
438 + "name": "LG01v2",
439 + "icon": "LG01v2",
440 + "disabled": false,
441 + "hidden": false
35 35   }
36 36  ]
LoRa_send_trial.ino
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1 +#include "LoRaWan_APP.h"
2 +#include "Arduino.h"
3 +
4 +
5 +#define RF_FREQUENCY 868100000 // Hz
6 +
7 +#define TX_OUTPUT_POWER 5 // dBm
8 +
9 +#define LORA_BANDWIDTH 0 // [0: 125 kHz,
10 + // 1: 250 kHz,
11 + // 2: 500 kHz,
12 + // 3: Reserved]
13 +#define LORA_SPREADING_FACTOR 12 // [SF7..SF12]
14 +#define LORA_CODINGRATE 1 // [1: 4/5,
15 + // 2: 4/6,
16 + // 3: 4/7,
17 + // 4: 4/8]
18 +#define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
19 +#define LORA_SYMBOL_TIMEOUT 0 // Symbols
20 +#define LORA_FIX_LENGTH_PAYLOAD_ON false
21 +#define LORA_IQ_INVERSION_ON false
22 +
23 +
24 +#define RX_TIMEOUT_VALUE 1000
25 +#define BUFFER_SIZE 30 // Define the payload size here
26 +
27 +float tem,hum;
28 +char tem_1[8]={"\0"},hum_1[8]={"\0"};
29 +char *node_id = "<GW01>"; //From LG01 via web Local Channel settings on MQTT.Please refer <> dataformat in here.
30 +
31 +char txpacket[BUFFER_SIZE];
32 +char rxpacket[BUFFER_SIZE];
33 +
34 +double txNumber;
35 +
36 +bool lora_idle=true;
37 +
38 +static RadioEvents_t RadioEvents;
39 +void OnTxDone( void );
40 +void OnTxTimeout( void );
41 +
42 +void dhtTem()
43 +{
44 + tem = random(15,40);
45 + hum = random(40,80);
46 + Serial.println(F("The temperature and humidity:"));
47 + Serial.print("[");
48 + Serial.print(tem);
49 + Serial.print("℃");
50 + Serial.print(",");
51 + Serial.print(hum);
52 + Serial.print("%");
53 + Serial.print("]");
54 + Serial.println("");
55 +}
56 +
57 +void dhtWrite()
58 +{
59 + char data[50] = "\0";
60 + for(int i = 0; i < 50; i++)
61 + {
62 + data[i] = node_id[i];
63 + }
64 +
65 + dtostrf(tem,0,1,tem_1);
66 + dtostrf(hum,0,1,hum_1);
67 +
68 + strcat(data,"tem_a=");
69 + strcat(data,tem_1);
70 + strcat(data,"&hum_a=");
71 + strcat(data,hum_1);
72 + strcpy((char *)txpacket,data);
73 +
74 + Serial.println((char *)txpacket);
75 +}
76 +
77 +void setup() {
78 + Serial.begin(115200);
79 + Mcu.begin();
80 +
81 + txNumber=0;
82 +
83 + RadioEvents.TxDone = OnTxDone;
84 + RadioEvents.TxTimeout = OnTxTimeout;
85 +
86 + Radio.Init( &RadioEvents );
87 + Radio.SetChannel( RF_FREQUENCY );
88 + Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
89 + LORA_SPREADING_FACTOR, LORA_CODINGRATE,
90 + LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
91 + true, 0, 0, LORA_IQ_INVERSION_ON, 3000 );
92 + }
93 +
94 +
95 +
96 +void loop()
97 +{
98 + if(lora_idle == true)
99 + {
100 + delay(5000);
101 + txNumber += 0.01;
102 + Serial.println(txNumber);
103 +
104 + dhtTem();
105 + dhtWrite();
106 + Radio.Send( (uint8_t *)txpacket, strlen(txpacket) ); //send the package out
107 + lora_idle = false;
108 + }
109 + Radio.IrqProcess( );
110 +}
111 +
112 +void OnTxDone( void )
113 +{
114 + Serial.println("TX done......");
115 + lora_idle = true;
116 +}
117 +
118 +void OnTxTimeout( void )
119 +{
120 + Radio.Sleep( );
121 + Serial.println("TX Timeout......");
122 + lora_idle = true;
123 +}
124 +
image-20221112161031-1.png
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