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How to Send Message use JSON Format ?
Hello , Can you help me ? How to solve this Question ? -
Hi taurushappy,
you can use ArduinoJSON library, (I’m going to publish a post on how to use It).You can
DynamicJsonDocument doc(512); // Set the values in the document doc["energyLifetime"] = 21698620; doc["energyYearly"] = 1363005; String buf; serializeJson(doc, buf); ResponseStatus rs = e32ttl.sendMessage(buf);Remember you have a size limit on message size of the lora E32.
The code is untested, but I think It can be usefully to understand.
Tell me if It’s ok.
Bye Renzo
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HI !
first, thanks for your help !
I try this ,the code can work ,but I don’t know it have some problem in my test ,it only work one time,send Message one time ,then stoped!
this is my test code :#include "Arduino.h" #include "LoRa_E32.h" #include <DHT.h> #include <ArduinoJson.h> #define DHTPIN 4 #define DHTTYPE DHT11 DHT dht(DHTPIN, DHTTYPE); DynamicJsonDocument doc(512); // ---------- esp8266 pins -------------- //LoRa_E32 e32ttl(D2, D3, D5, D7, D6); //LoRa_E32 e32ttl(D2, D3); // Config without connect AUX and M0 M1 //#include <SoftwareSerial.h> //SoftwareSerial mySerial(D2, D3); // RX, TX //LoRa_E32 e32ttl(&mySerial, D5, D7, D6); // ------------------------------------- // ---------- Arduino pins -------------- //LoRa_E32 e32ttl(2, 3, 5, 7, 6); LoRa_E32 e32ttl100(2, 3); // Config without connect AUX and M0 M1 //#include <SoftwareSerial.h> //SoftwareSerial mySerial(2, 3); // RX, TX //LoRa_E32 e32ttl(&mySerial, 5, 7, 6); // ------------------------------------- void setup() { Serial.begin(9600); delay(500); // Startup all pins and UART e32ttl100.begin(); dht.begin(); Serial.println("Hi, I'm going to send message!"); // Send message ResponseStatus rs = e32ttl100.sendMessage("Hello, Taurus!"); // Check If there is some problem of succesfully send Serial.println(rs.getResponseDescription()); } int i = 0; void loop() { float h = dht.readHumidity(); // Read temperature as Celsius (the default) float t = dht.readTemperature(); // Read temperature as Fahrenheit (isFahrenheit = true) float f = dht.readTemperature(true); // Check if any reads failed and exit early (to try again). if (isnan(h) || isnan(t) || isnan(f)) { Serial.println(F("Failed to read from DHT sensor!")); return; } // Compute heat index in Fahrenheit (the default) float hif = dht.computeHeatIndex(f, h); // Compute heat index in Celsius (isFahreheit = false) float hic = dht.computeHeatIndex(t, h, false); Serial.print(F("Humidity: ")); Serial.print(h); Serial.print(F("% Temperature: ")); Serial.print(t); Serial.print(F("°C ")); Serial.print(f); Serial.print(F("°F Heat index: ")); Serial.print(hic); Serial.print(F("°C ")); Serial.print(hif); Serial.println(F("°F")); delay(1000); doc["temperature"]=t; doc["humidity"]=h; String buf; serializeJson(doc,buf); ResponseStatus rs = e32ttl100.sendMessage(buf); Serial.println(rs.getResponseDescription()); delay(1000); } -
Hi I check your sketch and seems quite ok.
But I think you must add AUX pin or put a pull up resistor on It, with no AUX not work for me, but with aux I have a correct send.
And Arduino Json have some problem on serialize on String
#include "Arduino.h" #include "LoRa_E32.h" #include <DHT.h> #include <ArduinoJson.h> #define DHTPIN 4 #define DHTTYPE DHT11 int freeRame () { #ifdef ESP8266 return Esp.getFreeHeap(); #else extern int __heap_start, *__brkval; int v; return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval); #endif // ESP8266 } DHT dht(DHTPIN, DHTTYPE); DynamicJsonDocument doc(512); // ---------- esp8266 pins -------------- //LoRa_E32 e32ttl(D2, D3, D5, D7, D6); //LoRa_E32 e32ttl(D2, D3); // Config without connect AUX and M0 M1 //#include <SoftwareSerial.h> //SoftwareSerial mySerial(D2, D3); // RX, TX //LoRa_E32 e32ttl(&mySerial, D5, D7, D6); // ------------------------------------- // ---------- Arduino pins -------------- //LoRa_E32 e32ttl(2, 3, 5, 7, 6); LoRa_E32 e32ttl100(4, 5, 3); // Config without connect AUX and M0 M1 //#include <SoftwareSerial.h> //SoftwareSerial mySerial(2, 3); // RX, TX //LoRa_E32 e32ttl(&mySerial, 5, 7, 6); // ------------------------------------- void printParameters(struct Configuration configuration) { Serial.println("----------------------------------------"); Serial.print(F("HEAD BIN: ")); Serial.print(configuration.HEAD, BIN);Serial.print(" ");Serial.print(configuration.HEAD, DEC);Serial.print(" ");Serial.println(configuration.HEAD, HEX); Serial.println(F(" ")); Serial.print(F("AddH BIN: ")); Serial.println(configuration.ADDH, BIN); Serial.print(F("AddL BIN: ")); Serial.println(configuration.ADDL, BIN); Serial.print(F("Chan BIN: ")); Serial.print(configuration.CHAN, DEC); Serial.print(" -> "); Serial.println(configuration.getChannelDescription()); Serial.println(F(" ")); Serial.print(F("SpeedParityBit BIN : ")); Serial.print(configuration.SPED.uartParity, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTParityDescription()); Serial.print(F("SpeedUARTDataRate BIN : ")); Serial.print(configuration.SPED.uartBaudRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTBaudRate()); Serial.print(F("SpeedAirDataRate BIN : ")); Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getAirDataRate()); Serial.print(F("OptionTrans BIN : ")); Serial.print(configuration.OPTION.fixedTransmission, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getFixedTransmissionDescription()); Serial.print(F("OptionPullup BIN : ")); Serial.print(configuration.OPTION.ioDriveMode, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getIODroveModeDescription()); Serial.print(F("OptionWakeup BIN : ")); Serial.print(configuration.OPTION.wirelessWakeupTime, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getWirelessWakeUPTimeDescription()); Serial.print(F("OptionFEC BIN : ")); Serial.print(configuration.OPTION.fec, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getFECDescription()); Serial.print(F("OptionPower BIN : ")); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getTransmissionPowerDescription()); Serial.println("----------------------------------------"); } void setup() { Serial.begin(9600); delay(500); // Startup all pins and UART e32ttl100.begin(); dht.begin(); // ResponseStructContainer c; // c = e32ttl100.getConfiguration(); // struct Configuration configuration = *(Configuration*) c.data; // printParameters(configuration); // // configuration.ADDL = 0x01; // configuration.ADDH = 0x00; // configuration.CHAN = 0x04; // // configuration.OPTION.fixedTransmission = FT_TRANSPARENT_TRANSMISSION; // configuration.OPTION.wirelessWakeupTime = WAKE_UP_750; // // configuration.OPTION.fec = FEC_1_ON; // configuration.OPTION.ioDriveMode = IO_D_MODE_PUSH_PULLS_PULL_UPS; // configuration.OPTION.transmissionPower = POWER_20; // // configuration.SPED.airDataRate = AIR_DATA_RATE_010_24; // configuration.SPED.uartBaudRate = UART_BPS_9600; // configuration.SPED.uartParity = MODE_00_8N1; // // // e32ttl100.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE); // printParameters(configuration); Serial.println("Hi, I'm going to send message!"); Serial.println(freeRame()); // Send message ResponseStatus rs = e32ttl100.sendMessage("Hello, Taurus!"); Serial.println(freeRame()); // Check If there is some problem of succesfully send Serial.println(rs.getResponseDescription()); } int i = 0; void loop() { Serial.println(freeRame()); float h = dht.readHumidity(); // Read temperature as Celsius (the default) float t = dht.readTemperature(); // Read temperature as Fahrenheit (isFahrenheit = true) float f = dht.readTemperature(true); // Check if any reads failed and exit early (to try again). if (isnan(h) || isnan(t) || isnan(f)) { Serial.println(F("Failed to read from DHT sensor!")); // return; } // Compute heat index in Fahrenheit (the default) float hif = dht.computeHeatIndex(f, h); // Compute heat index in Celsius (isFahreheit = false) float hic = dht.computeHeatIndex(t, h, false); Serial.println(freeRame()); h = random(90); t = random(40); f = 1.0; hif = 2.0; hic = 2.0; Serial.print(F("Humidity: ")); Serial.print(h); Serial.print(F("% Temperature: ")); Serial.print(t); Serial.print(F("°C ")); Serial.print(f); Serial.print(F("°F Heat index: ")); Serial.print(hic); Serial.print(F("°C ")); Serial.print(hif); Serial.println(F("°F")); Serial.println(freeRame()); delay(1000); doc["temperature"] = t; doc["humidity"] = h; Serial.println(freeRame()); int size = measureJson(doc)+1; char buf[size]; serializeJson(doc, buf, size); Serial.println(buf); Serial.println(measureJson(doc)); ResponseStatus rs = e32ttl100.sendMessage(buf, size); // String buf; // serializeJson(doc, buf); // Serial.println(buf); // Serial.println(buf.length()); // ResponseStatus rs = e32ttl100.sendMessage(buf); Serial.println(freeRame()); Serial.println(rs.getResponseDescription()); Serial.println(freeRame()); delay(2000); }#include "Arduino.h" #include "LoRa_E32.h" #include <ArduinoJson.h> #define E32_TTL_100 LoRa_E32 e32ttl(4, 5, 3); // Config without connect AUX and M0 M1 //#include <SoftwareSerial.h> //SoftwareSerial mySerial(D2, D3); // RX, TX //E32_TTL e32ttl(&mySerial, D5, D7, D6); void printParameters(struct Configuration configuration); void printModuleInformation(struct ModuleInformation moduleInformation); //The setup function is called once at startup of the sketch void setup() { Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB } delay(400); e32ttl.begin(); // ResponseStructContainer c; // c = e32ttl.getConfiguration(); // struct Configuration configuration = *(Configuration*) c.data; // printParameters(configuration); // // configuration.ADDL = 0x01; // configuration.ADDH = 0x00; // configuration.CHAN = 0x04; // // configuration.OPTION.fixedTransmission = FT_TRANSPARENT_TRANSMISSION; // configuration.OPTION.wirelessWakeupTime = WAKE_UP_750; // // configuration.OPTION.fec = FEC_1_ON; // configuration.OPTION.ioDriveMode = IO_D_MODE_PUSH_PULLS_PULL_UPS; // configuration.OPTION.transmissionPower = POWER_20; // // configuration.SPED.airDataRate = AIR_DATA_RATE_010_24; // configuration.SPED.uartBaudRate = UART_BPS_9600; // configuration.SPED.uartParity = MODE_00_8N1; // // // e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE); // printParameters(configuration); // ResponseContainer c; // c = e32ttl.getConfiguration(); // Configuration configuration = *(Configuration*) c.data; // Serial.println(configuration.SPED.getUARTBaudRate()); // Serial.println(c.status.getResponseDescription()); // // printParameters(configuration); // // ResponseContainer cMi; // cMi = e32ttl.getModuleInformation(); // ModuleInformation mi = *(ModuleInformation*)cMi.data; // // Serial.println(cMi.status.getResponseDescription()); // Serial.println(cMi.status.code); // // printModuleInformation(mi ); // // configuration.CHAN = configuration.CHAN-1; // e32ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE); // // ResponseContainer cNext; // cNext = e32ttl.getConfiguration(); // Configuration configurationNext = *(Configuration*) cNext.data; // Serial.println(configurationNext.SPED.getUARTBaudRate()); // Serial.println(cNext.status.getResponseDescription()); // printParameters(configurationNext); } DynamicJsonDocument doc(512); // The loop function is called in an endless loop void loop() { if (e32ttl.available() > 1){ // struct Messaggione { // char message[8]; // bool mitico; // }; // // char type[5]; // ResponseContainer rs = e32ttl.receiveInitialMessage(sizeof(type)); // memcpy ( type, rs.data.c_str(), sizeof(type) ); //// ResponseContainer rs = e32ttl.receiveInitialMessage(5); //// char type[5] = {rs.data.c_str()}; // // Serial.println("READ TYPE: "); // Serial.println(rs.status.getResponseDescription()); // Serial.println(type); // // ResponseStructContainer rsc = e32ttl.receiveMessage(sizeof(Messaggione)); // struct Messaggione messaggione = *(Messaggione*) rsc.data; ResponseContainer rs = e32ttl.receiveMessage(); String message = rs.data; Serial.println(rs.status.getResponseDescription()); Serial.println(message); deserializeJson(doc, message); Serial.print("humidity --> "); Serial.println((float)doc["humidity"]); // Serial.println(messaggione.message); // Serial.println(messaggione.mitico); } } //void printParameters(struct Configuration configuration) { // Serial.println("----------------------------------------"); // // Serial.print(F("HEAD BIN: ")); Serial.print(configuration.HEAD, BIN);Serial.print(" ");Serial.print(configuration.HEAD, DEC);Serial.print(" ");Serial.println(configuration.HEAD, HEX); // Serial.println(F(" ")); // Serial.print(F("AddH BIN: ")); Serial.println(configuration.ADDH, BIN); // Serial.print(F("AddL BIN: ")); Serial.println(configuration.ADDL, BIN); // Serial.print(F("Chan BIN: ")); Serial.print(configuration.CHAN, HEX); Serial.print(" -> "); Serial.println(); // Serial.println(F(" ")); // Serial.print(F("SpeedParityBit BIN : ")); Serial.print(configuration.SPED.uartParity, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("SpeedUARTDataRate BIN : ")); Serial.print(configuration.SPED.uartBaudRate, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("SpeedAirDataRate BIN : ")); Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(" -> "); Serial.println(); // // Serial.print(F("OptionTrans BIN : ")); Serial.print(configuration.OPTION.fixedTransmission, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("OptionPullup BIN : ")); Serial.print(configuration.OPTION.ioDriveMode, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("OptionWakeup BIN : ")); Serial.print(configuration.OPTION.wirelessWakeupTime, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("OptionFEC BIN : ")); Serial.print(configuration.OPTION.fec, BIN);Serial.print(" -> "); Serial.println(); // Serial.print(F("OptionPower BIN : ")); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(" -> "); Serial.println(); // // Serial.println("----------------------------------------"); // //} void printParameters(struct Configuration configuration) { Serial.println("----------------------------------------"); Serial.print(F("HEAD BIN: ")); Serial.print(configuration.HEAD, BIN);Serial.print(" ");Serial.print(configuration.HEAD, DEC);Serial.print(" ");Serial.println(configuration.HEAD, HEX); Serial.println(F(" ")); Serial.print(F("AddH BIN: ")); Serial.println(configuration.ADDH, BIN); Serial.print(F("AddL BIN: ")); Serial.println(configuration.ADDL, BIN); Serial.print(F("Chan BIN: ")); Serial.print(configuration.CHAN, DEC); Serial.print(" -> "); Serial.println(configuration.getChannelDescription()); Serial.println(F(" ")); Serial.print(F("SpeedParityBit BIN : ")); Serial.print(configuration.SPED.uartParity, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTParityDescription()); Serial.print(F("SpeedUARTDataRate BIN : ")); Serial.print(configuration.SPED.uartBaudRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTBaudRate()); Serial.print(F("SpeedAirDataRate BIN : ")); Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getAirDataRate()); Serial.print(F("OptionTrans BIN : ")); Serial.print(configuration.OPTION.fixedTransmission, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getFixedTransmissionDescription()); Serial.print(F("OptionPullup BIN : ")); Serial.print(configuration.OPTION.ioDriveMode, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getIODroveModeDescription()); Serial.print(F("OptionWakeup BIN : ")); Serial.print(configuration.OPTION.wirelessWakeupTime, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getWirelessWakeUPTimeDescription()); Serial.print(F("OptionFEC BIN : ")); Serial.print(configuration.OPTION.fec, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getFECDescription()); Serial.print(F("OptionPower BIN : ")); Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getTransmissionPowerDescription()); Serial.println("----------------------------------------"); } void printModuleInformation(struct ModuleInformation moduleInformation) { Serial.println("----------------------------------------"); Serial.print(F("HEAD BIN: ")); Serial.print(moduleInformation.HEAD, BIN);Serial.print(" ");Serial.print(moduleInformation.HEAD, DEC);Serial.print(" ");Serial.println(moduleInformation.HEAD, HEX); Serial.print(F("Model no.: ")); Serial.println(moduleInformation.model, HEX); Serial.print(F("Version : ")); Serial.println(moduleInformation.version, HEX); Serial.print(F("Features : ")); Serial.println(moduleInformation.features, HEX); Serial.println("----------------------------------------"); }
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