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Create LoRaWan_WiFi.ino
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‎esp32/libraries/Heltec-Example/examples/LoRaWAN/LoRaWan_WiFi/LoRaWan_WiFi.ino

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/*
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* HelTec Automation(TM) Wireless Bridge dedicated test code, witch includ
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* follow functions:
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*
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* - Transfer WiFi message to LoRaWAN payload;
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*
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* Detail description about this demo code, please refer to this document:
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*
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*
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* by Aaron.Lee from HelTec AutoMation, ChengDu, China
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* 成都惠利特自动化科技有限公司
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* www.heltec.cn
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*
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* this project also realess in GitHub:
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* https://github.com/HelTecAutomation/ESP32_LoRaWAN
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*/
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#include "Arduino.h"
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#include <WiFi.h>
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#include <WiFiClient.h>
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#include <WebServer.h>
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#include <ESPmDNS.h>
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#include <Update.h>
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#include <LoRaWan_APP.h>
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const char* ssid = "Your_WiFi_Name";
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const char* password = "Your_WiFi_Password";
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/* OTAA para*/
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uint8_t devEui[] = { 0x22, 0x32, 0x33, 0x00, 0x00, 0x88, 0x88, 0x02 };
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uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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uint8_t appKey[] = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x66, 0x01 };
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/* ABP para*/
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uint8_t nwkSKey[] = { 0x15, 0xb1, 0xd0, 0xef, 0xa4, 0x63, 0xdf, 0xbe, 0x3d, 0x11, 0x18, 0x1e, 0x1e, 0xc7, 0xda,0x85 };
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uint8_t appSKey[] = { 0xd7, 0x2c, 0x78, 0x75, 0x8c, 0xdc, 0xca, 0xbf, 0x55, 0xee, 0x4a, 0x77, 0x8d, 0x16, 0xef,0x67 };
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uint32_t devAddr = ( uint32_t )0x007e6ae1;
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/*LoraWan channelsmask, default channels 0-7*/
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uint16_t userChannelsMask[6]={ 0x00FF,0x0000,0x0000,0x0000,0x0000,0x0000 };
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/*LoraWan region, select in arduino IDE tools*/
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LoRaMacRegion_t loraWanRegion = ACTIVE_REGION;
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/*LoraWan Class, Class A and Class C are supported*/
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DeviceClass_t loraWanClass = CLASS_C;
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/*the application data transmission duty cycle. value in [ms].*/
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uint32_t appTxDutyCycle = 15000;
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/*OTAA or ABP*/
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bool overTheAirActivation = true;
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/*ADR enable*/
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bool loraWanAdr = true;
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/* Indicates if the node is sending confirmed or unconfirmed messages */
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bool isTxConfirmed = true;
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/* Application port */
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uint8_t appPort = 2;
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/*!
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* Number of trials to transmit the frame, if the LoRaMAC layer did not
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* receive an acknowledgment. The MAC performs a datarate adaptation,
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* according to the LoRaWAN Specification V1.0.2, chapter 18.4, according
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* to the following table:
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*
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* Transmission nb | Data Rate
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* ----------------|-----------
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* 1 (first) | DR
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* 2 | DR
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* 3 | max(DR-1,0)
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* 4 | max(DR-1,0)
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* 5 | max(DR-2,0)
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* 6 | max(DR-2,0)
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* 7 | max(DR-3,0)
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* 8 | max(DR-3,0)
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*
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* Note, that if NbTrials is set to 1 or 2, the MAC will not decrease
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* the datarate, in case the LoRaMAC layer did not receive an acknowledgment
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*/
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uint8_t confirmedNbTrials = 4;
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static void prepareTxFrame( uint8_t port )
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{
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appDataSize = 4;//AppDataSize max value is 64
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appData[0] = 'A';
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appData[1] = 'B';
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appData[2] = 'C';
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appData[3] = 'D';
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}
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String LoRa_data;
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uint16_t num=0;
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bool LoRaDownLink = false;
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uint32_t LoRadonwlinkTime;
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void downLinkDataHandle(McpsIndication_t *mcpsIndication)
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{
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LoRa_data = "";
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Serial.printf("+REV DATA:%s,RXSIZE %d,PORT %d\r\n",mcpsIndication->RxSlot?"RXWIN2":"RXWIN1",mcpsIndication->BufferSize,mcpsIndication->Port);
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Serial.print("+REV DATA:");
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for(uint8_t i=0;i<mcpsIndication->BufferSize;i++)
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{
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Serial.printf("%d",mcpsIndication->Buffer[i]);
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LoRa_data = LoRa_data + (String)(char)mcpsIndication->Buffer[i];
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}
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LoRaDownLink = true;
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LoRadonwlinkTime = millis();
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num++;
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Serial.println();
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Serial.print(num);
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Serial.print(":");
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Serial.println(LoRa_data);
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}
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WebServer server(80);
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String htmlS ="<html>\
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<head>\
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<title>Wireless_Bridge</title>\
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<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\
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</head>\
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<style type=\"text/css\">\
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.header{display: block;margin-top:10px;text-align:center;width:100%;font-size:10px}\
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.input{display: block;text-align:center;width:100%}\
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.input input{height: 20px;width: 300px;text-align:center;border-radius:15px;}\
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.input select{height: 26px;width: 305px;text-align:center;border-radius:15px;}\
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.btn,button{width: 305px;height: 40px;border-radius:20px; background-color: #000000; border:0px; color:#ffffff; margin-top:20px;}\
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</style>\
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<script type=\"text/javascript\">\
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function myrefresh()\
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{\
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window.location.reload();\
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}\
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window.onload=function(){\
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setTimeout('myrefresh()',10000);\
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} \
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</script>\
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<body>\
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<div style=\"width:100%;text-align:center;font-size:25px;font-weight:bold;margin-bottom:20px\">Wireless_Bridge</div>\
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<div style=\"width:100%;text-align:center;\">\
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<div class=\"header\"><span>(Note 1: The default refresh time of this page is 10s. If you need to modify the refresh time, you can modify it in the 'setTimeout' function.)</span></div>\
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<div class=\"header\"><span>(Note 2: The refresh time needs to be modified according to the data sending frequency.)</span></div>\
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<div class=\"header\"><span>Data: ";
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String htmlF = "</span></div>\
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</form>\
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</div>\
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</body>\
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</html>";
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String htmlW = "<html>\
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<head>\
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<title>Wireless_Bridge</title>\
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<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\
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</head>\
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<style type=\"text/css\">\
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.header{display: block;margin-top:10px;text-align:center;width:100%;font-size:10px}\
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.input{display: block;text-align:center;width:100%}\
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.input input{height: 20px;width: 300px;text-align:center;border-radius:15px;}\
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.input select{height: 26px;width: 305px;text-align:center;border-radius:15px;}\
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.btn,button{width: 305px;height: 40px;border-radius:20px; background-color: #000000; border:0px; color:#ffffff; margin-top:20px;}\
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</style>\
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<script type=\"text/javascript\">\
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window.onload=function(){\
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document.getElementsByName(\"server\")[0].value = \"\";\
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} \
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</script>\
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<body>\
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<div style=\"width:100%;text-align:center;font-size:25px;font-weight:bold;margin-bottom:20px\">Wireless_Bridge</div>\
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<div style=\"width:100%;text-align:center;\">\
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<div class=\"header\"><span>(Note 1: The data sent from this webpage to LoRa needs to be decoded to be able to be viewed normally.)</span></div>\
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<div class=\"header\"><span>(Note 2: The default size of data sent by LoRa is 4 bytes, which can be modified in the program.)</span></div>\
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<form method=\"POST\" action=\"\" onsubmit=\"\">\
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<div class=\"header\"><span>DATA</span></div>\
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<div class=\"input\"><input type=\"text\" name=\"server\" value=\"\"></div>\
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<div class=\"header\"><input class=\"btn\" type=\"submit\" name=\"submit\" value=\"Submit\"></div>\
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</form>\
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</div>\
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</body>\
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</html>";
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String Page_data="";
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String symbol=":";
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void ROOT_HTML()
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{
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Page_data =Page_data+ (String)num+ symbol + LoRa_data +"<br>";
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String html = htmlS + Page_data + htmlF;
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server.send(200,"text/html",html);
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}
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bool WiFiDownLink = false;
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uint32_t WiFidonwlinkTime;
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String Write_data="";
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void ROOT_HTMLW()
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{
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if(server.hasArg("server"))
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{
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Serial.println(server.arg("server"));
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Write_data=server.arg("server");
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WiFiDownLink = true;
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WiFidonwlinkTime = millis();
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unsigned char *puc;
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puc = (unsigned char *)(&Write_data);
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appDataSize = 4;//AppDataSize max value is 64
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appData[0] = puc[0];
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appData[1] = puc[1];
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appData[2] = puc[2];
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appData[3] = puc[3];
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LoRaWAN.send();
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}
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server.send(200,"text/html",htmlW);
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}
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void setup(void) {
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Serial.begin(115200);
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while (!Serial);
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Mcu.begin();
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deviceState = DEVICE_STATE_INIT;
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pinMode(WIFI_LED, OUTPUT);
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pinMode(LoRa_LED, OUTPUT);
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digitalWrite(WIFI_LED, HIGH);
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digitalWrite(LoRa_LED, HIGH);
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delay(1000);
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digitalWrite(WIFI_LED, LOW);
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digitalWrite(LoRa_LED, LOW);
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Serial.println();
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Serial.println("Booting Sketch...");
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid, password);
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if (WiFi.waitForConnectResult() == WL_CONNECTED) {
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server.on("/", ROOT_HTML);
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server.on("/w", ROOT_HTMLW);
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server.begin();
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MDNS.addService("http", "tcp", 80);
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Serial.println("");
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Serial.println("WiFi connected.");
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Serial.println("View page IP address: ");
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Serial.println(WiFi.localIP());
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Serial.println("Write page IP address: ");
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Serial.print(WiFi.localIP());
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Serial.println("/w");
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} else {
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Serial.println("WiFi Failed");
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}
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}
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void loop(void) {
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server.handleClient();
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switch( deviceState )
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{
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case DEVICE_STATE_INIT:
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{
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#if(LORAWAN_DEVEUI_AUTO)
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LoRaWAN.generateDeveuiByChipID();
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#endif
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LoRaWAN.init(loraWanClass,loraWanRegion);
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break;
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}
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case DEVICE_STATE_JOIN:
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{
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LoRaWAN.join();
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break;
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}
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case DEVICE_STATE_SEND:
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{
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prepareTxFrame( appPort );
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LoRaWAN.send();
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deviceState = DEVICE_STATE_CYCLE;
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break;
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}
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case DEVICE_STATE_CYCLE:
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{
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// Schedule next packet transmission
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txDutyCycleTime = appTxDutyCycle + randr( -APP_TX_DUTYCYCLE_RND, APP_TX_DUTYCYCLE_RND );
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LoRaWAN.cycle(txDutyCycleTime);
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deviceState = DEVICE_STATE_SLEEP;
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break;
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}
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case DEVICE_STATE_SLEEP:
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{
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LoRaWAN.sleep(loraWanClass);
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break;
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}
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default:
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{
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deviceState = DEVICE_STATE_INIT;
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break;
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}
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}
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if(LoRaDownLink)
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{
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LoRaDownLink = false;
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digitalWrite(LoRa_LED,HIGH);
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}
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else if(digitalRead(LoRa_LED) && (millis()-LoRadonwlinkTime)> 1000)
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{
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digitalWrite(LoRa_LED,LOW);
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}
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if(WiFiDownLink)
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{
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WiFiDownLink = false;
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digitalWrite(WIFI_LED,HIGH);
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}
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else if(digitalRead(WIFI_LED) && (millis()-WiFidonwlinkTime)> 1000)
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{
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digitalWrite(WIFI_LED,LOW);
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}
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}

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