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September 25, 2020 20:23
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#include <WiFi.h> | |
#include <HTTPClient.h> | |
#include <ArduinoJson.h> | |
#include <SPI.h> | |
#include <RH_RF95.h> | |
#define RFM95_CS 18 | |
#define RFM95_RST 14 | |
#define RFM95_INT 26 | |
// Change to 434.0 or other frequency, must match RX's freq! | |
#define RF95_FREQ 915.0 | |
// Singleton instance of the radio driver | |
RH_RF95 rf95(RFM95_CS, RFM95_INT); | |
const char* ssid = "Temagami-EXT_EXT"; | |
const char* password = "888888pab70"; | |
const char* serverName = "https://edgecollective.farmos.net/farm/sensor/listener/47803f44fef9cf01489d033d2eef4424?private_key=9f6a52fb667566b828069794274fad22"; | |
// the following variables are unsigned longs because the time, measured in | |
// milliseconds, will quickly become a bigger number than can be stored in an int. | |
unsigned long lastTime = 0; | |
// Timer set to 10 minutes (600000) | |
//unsigned long timerDelay = 600000; | |
// Set timer to 90 seconds (5000) | |
unsigned long timerDelay = 90000; | |
StaticJsonDocument<200> doc; | |
int postcount = 0; | |
void setup() { | |
Serial.begin(115200); | |
while (!rf95.init()) { | |
Serial.println("LoRa radio init failed"); | |
Serial.println("Uncomment '#define SERIAL_DEBUG' in RH_RF95.cpp for detailed debug info"); | |
while (1); | |
} | |
Serial.println("LoRa radio init OK!"); | |
// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM | |
if (!rf95.setFrequency(RF95_FREQ)) { | |
Serial.println("setFrequency failed"); | |
while (1); | |
} | |
Serial.print("Set Freq to: "); Serial.println(RF95_FREQ); | |
rf95.setTxPower(23, false); | |
WiFi.begin(ssid, password); | |
Serial.println("Connecting"); | |
while(WiFi.status() != WL_CONNECTED) { | |
delay(500); | |
Serial.print("."); | |
} | |
Serial.println(""); | |
Serial.print("Connected to WiFi network with IP Address: "); | |
Serial.println(WiFi.localIP()); | |
Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading."); | |
} | |
void loop() { | |
if (rf95.available()) | |
{ | |
// Should be a message for us now | |
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN]; | |
uint8_t len = sizeof(buf); | |
if (rf95.recv(buf, &len)) | |
{ | |
RH_RF95::printBuffer("Received: ", buf, len); | |
Serial.print("Got: "); | |
Serial.println((char*)buf); | |
Serial.print("RSSI: "); | |
Serial.println(rf95.lastRssi(), DEC); | |
doc["temp"] = 23.5; | |
doc["humidity"] = 50.2; | |
Serial.print( (timerDelay - (millis() - lastTime))/1000.); | |
Serial.println(" sec remain til next POST"); | |
if ( ( (millis() - lastTime) > timerDelay) || (postcount == 0)) { | |
if(WiFi.status()== WL_CONNECTED){ | |
HTTPClient http; | |
// Your Domain name with URL path or IP address with path | |
http.begin(serverName); | |
// Specify content-type header | |
//http.addHeader("Content-Type", "application/x-www-form-urlencoded"); | |
// Data to send with HTTP POST | |
//String httpRequestData = "api_key=tPmAT5Ab3j7F9&sensor=BME280&value1=24.25&value2=49.54&value3=1005.14"; | |
// Send HTTP POST request | |
//int httpResponseCode = http.POST(httpRequestData); | |
// If you need an HTTP request with a content type: application/json, use the following: | |
http.addHeader("Content-Type", "application/json"); | |
//int httpResponseCode = http.POST("{\"api_key\":\"tPmAT5Ab3j7F9\",\"sensor\":\"BME280\",\"value1\":\"24.25\",\"value2\":\"49.54\",\"value3\":\"1005.14\"}"); | |
String output; | |
serializeJson(doc, output); | |
int httpResponseCode = http.POST(output); | |
Serial.print("HTTP Response code: "); | |
Serial.println(httpResponseCode); | |
postcount=postcount+1; | |
// Free resources | |
http.end(); | |
} | |
else { | |
Serial.println("WiFi Disconnected"); | |
} | |
lastTime = millis(); | |
} | |
// Send a reply | |
uint8_t data[] = "And hello back to you"; | |
rf95.send(data, sizeof(data)); | |
rf95.waitPacketSent(); | |
Serial.println("Sent a reply"); | |
} | |
else | |
{ | |
Serial.println("Receive failed"); | |
} | |
} | |
} |
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