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Thingspeak пример работы
ESP8266
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#include <ESP8266WiFi.h> // Include the ESP8266 Library #include "ThingSpeak.h" // Include the ThingSpeak library WiFiClient client; const char* ssid = "SSID"; // Enter your WiFi network name const char* password = "PASSWD"; // Enter your WiFi password unsigned long myChannelNumber = 237783; const char * myWriteAPIKey = "WRITE_API"; const char * myReadAPIKey = "READ_API"; void setup() { Serial.begin(9600); // Get ready for serial communications and display the connetion status delay(100); Serial.println(); Serial.println(); Serial.print("Connecting to WiFi network - "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); ThingSpeak.begin(client); } void loop() { int potentiometerValue = analogRead(A0); ThingSpeak.writeField(myChannelNumber, 1, potentiometerValue, myWriteAPIKey); int readField = ThingSpeak.readFloatField(myChannelNumber, 1, myReadAPIKey); Serial.print("Current potentiometer value is: "); Serial.println(readField); delay(16000); } |
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ESP32
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#include <WiFi.h> #include <Wire.h> #include <Adafruit_Sensor.h> #include <Adafruit_BME280.h> #define SEALEVELPRESSURE_HPA (1013.25) const char* ssid = "SSID"; const char* password = "PASS"; const char * hostDomain = "api.thingspeak.com"; const int hostPort = 80; String myWriteAPIKey = "YNYD7OQXR8SZVF6U"; WiFiClient client; Adafruit_BME280 bme; float bmeTemperature = 0; float bmePressure = 0; float bmeHumidity =0; void setup() { Serial.begin(9600); delay(100); if (!bme.begin()) { Serial.println("Could not find a valid BME280 sensor, check wiring!"); while (1); } Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); } void requestURL(const char * host, uint8_t port, float Temperature, float Pressure, float Humidity) { Serial.println("Connecting to domain: " + String(host)); if (!client.connect(host, port)) { Serial.println("connection failed"); return; } Serial.println("Connected!"); // This will send the request to the server String getStr = myWriteAPIKey; getStr +="&field1="; getStr += String(Temperature); getStr +="&field2="; getStr += String(Pressure); getStr +="&field3="; getStr += String(Humidity); getStr += "\r\n\r\n"; Serial.println(getStr); client.print("GET /update HTTP/1.1\n"); client.print("Host: api.thingspeak.com\n"); client.print("Connection: close\n"); client.print("X-THINGSPEAKAPIKEY: "+myWriteAPIKey+"\n"); client.print("Content-Type: application/x-www-form-urlencoded\n"); client.print("Content-Length: "); client.print(getStr.length()); client.print("\n\n"); client.print(getStr); unsigned long timeout = millis(); while (client.available() == 0) { if (millis() - timeout > 5000) { Serial.println(">>> Client Timeout !"); client.stop(); return; } } // Read all the lines of the reply from server and print them to Serial while (client.available()) { String line = client.readStringUntil('\r'); Serial.print(line); } Serial.println(); Serial.println("closing connection"); client.stop(); } void loop() { bmeTemperature = bme.readTemperature(); bmePressure = bme.readPressure()*0.007500617; bmeHumidity = bme.readHumidity(); Serial.print("Temperature = "); Serial.print(bmeTemperature); Serial.println(" *C"); Serial.print("Pressure = "); Serial.print(bmePressure); Serial.println(" hPa"); Serial.print("Humidity = "); Serial.print(bmeHumidity); Serial.println(" %"); Serial.println(); requestURL(hostDomain, hostPort, bmeTemperature, bmePressure, bmeHumidity); delay(60000); } |
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