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  • LoRa_send_trial.ino

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...	...	@@ -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
...	...	@@ -484,44 +484,6 @@
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		-
525	525	= (% style="color:inherit; font-family:inherit; font-size:29px" %)**8. Supports**(%%) =
526	526
527	527

LoRa_send_trial.ino

Author

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1		-XWiki.Kilight

Size

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1		-3.4 KB

Content

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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		-