キーワード： ソースコード esp8266 esp32 esp12 BME280 IoT arduino jQuery PHP chart.js
目的
BME280で測定した温度をレンタルサーバーへ送り、PCやスマホからグラフを見る
Sketch
.ino 以外のコードは https://blogs.yahoo.co.jp/pdxpopypop/65491778.html を見よ
/***************************************************************************
This is a library for the BME280 humidity, temperature & pressure sensor
This is a library for the BME280 humidity, temperature & pressure sensor
Designed specifically to work with the Adafruit BME280 Breakout
----> http://www.adafruit.com/products/2650
----> http://www.adafruit.com/products/2650
These sensors use I2C or SPI to communicate, 2 or 4 pins are required
to interface. The device's I2C address is either 0x76 or 0x77.
to interface. The device's I2C address is either 0x76 or 0x77.
Adafruit invests time and resources providing this open source code,
please support Adafruit andopen-source hardware by purchasing products
from Adafruit!
please support Adafruit andopen-source hardware by purchasing products
from Adafruit!
Written by Limor Fried & Kevin Townsend for Adafruit Industries.
BSD license, all text above must be included in any redistribution
BSD license, all text above must be included in any redistribution
2018/09/25
Attention : I2C address in Adafluit Library --- Adafruit_BME280.h
changed to #define BME280_ADDRESS (0x76)
***************************************************************************/
Attention : I2C address in Adafluit Library --- Adafruit_BME280.h
changed to #define BME280_ADDRESS (0x76)
***************************************************************************/
// http://shangtian.hatenablog.com/entry/2017/06/16/223755
// measure and chart update every 1 min
// BME280 test , 2018/9/25
// measure and chart update every 1 min
// BME280 test , 2018/9/25
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <WiFiClient.h>
const char* ssid = "D8*************G";
const char* password = "2************7";
const char* password = "2************7";
// host name of server
#define HOST_NAME "databooster.stars.ne.jp"
// file path of PHP file
#define PHP_PATH "/shangtianblog10/sensorSet10.php"
// port number
#define PORT_NUMBER 80
float sigma = 0;
float average = 0;
#define HOST_NAME "databooster.stars.ne.jp"
// file path of PHP file
#define PHP_PATH "/shangtianblog10/sensorSet10.php"
// port number
#define PORT_NUMBER 80
float sigma = 0;
float average = 0;
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#define BME_SCK 13
#define BME_MISO 12
#define BME_MOSI 11
#define BME_CS 10
#define BME_MISO 12
#define BME_MOSI 11
#define BME_CS 10
#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme; // I2C
//Adafruit_BME280 bme(BME_CS); // hardware SPI
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
//Adafruit_BME280 bme(BME_CS); // hardware SPI
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
unsigned long delayTime;
// host name of server
const char* server = "databooster.stars.ne.jp";
// WiFiClient instance
WiFiClient client;
// make connection to WiFi and server
void connectWiFi();
void connectServer();
void setup() {
delay(1000);
Serial.begin(115200);
delay(500);
Serial.println();
Serial.println(F("BME280 test"));
bool status;
// default settings
// (you can also pass in a Wire library object like &Wire2)
status = bme.begin();
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
Serial.println("-- Default Test --");
Serial.println();
connectWiFi();
}
delay(1000);
Serial.begin(115200);
delay(500);
Serial.println();
Serial.println(F("BME280 test"));
bool status;
// default settings
// (you can also pass in a Wire library object like &Wire2)
status = bme.begin();
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
Serial.println("-- Default Test --");
Serial.println();
connectWiFi();
}
#define MILLISECONDS_TO_WAIT 60000
unsigned long time_zero = millis();
unsigned long time_zero = millis();
void loop() {
printValues();
// delay(500);
printValues();
// delay(500);
time_zero = millis();
// read analog input
int analogOUT = 0;
int count = 0;
sigma = 0;
average = 0;
// read analog input
int analogOUT = 0;
int count = 0;
sigma = 0;
average = 0;
while (count < 100) {
analogOUT = bme.readTemperature() -2.8;
average = average + analogOUT;
sigma = sigma + analogOUT * analogOUT;
delay(400);
count++;
}
average = average / count;
Serial.println ( average );
sigma = sqrt( sigma / count - average * average );
// end analog read
connectServer();
delay(10);
analogOUT = bme.readTemperature() -2.8;
average = average + analogOUT;
sigma = sigma + analogOUT * analogOUT;
delay(400);
count++;
}
average = average / count;
Serial.println ( average );
sigma = sqrt( sigma / count - average * average );
// end analog read
connectServer();
delay(10);
if (millis() - time_zero < MILLISECONDS_TO_WAIT) {
Serial.println ( MILLISECONDS_TO_WAIT - millis() + time_zero );
delay( MILLISECONDS_TO_WAIT - millis() + time_zero );
}
}
Serial.println ( MILLISECONDS_TO_WAIT - millis() + time_zero );
delay( MILLISECONDS_TO_WAIT - millis() + time_zero );
}
}
// connection to WiFi
void connectWiFi() {
Serial.println();
Serial.println();
Serial.println("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
// wait till WiFi be connected
while (WiFi.status() != WL_CONNECTED) {
delay(100);
Serial.print(".");
}
Serial.println ( "" );
Serial.print ( "Connected to " );
Serial.println ( ssid );
}
// send data to server
void connectServer() {
int analogOUT = 0;
void connectServer() {
int analogOUT = 0;
if (client.connect(server, 80)) {
Serial.println("connected to server");
char s[16];
dtostrf(average, 3, 1, s);
char sendData[300] = "";
sprintf(sendData, "GET %s?value=%s HTTP/1.1\r\nHost: %s\r\nConnection: close\r\n\r\n", PHP_PATH, s, HOST_NAME);
Serial.println(sendData);
client.println(sendData);
Serial.println("******** Closed **********");
Serial.println("connected to server");
char s[16];
dtostrf(average, 3, 1, s);
char sendData[300] = "";
sprintf(sendData, "GET %s?value=%s HTTP/1.1\r\nHost: %s\r\nConnection: close\r\n\r\n", PHP_PATH, s, HOST_NAME);
Serial.println(sendData);
client.println(sendData);
Serial.println("******** Closed **********");
}
}
}
void printValues() {
Serial.print("Temperature = ");
Serial.print(bme.readTemperature() -2.8 );
Serial.println(" deg");
Serial.print("Temperature = ");
Serial.print(bme.readTemperature() -2.8 );
Serial.println(" deg");
Serial.print("Pressure = ");
Serial.print(bme.readPressure() / 100.0F + 39 );
Serial.println(" hPa");
Serial.println(" hPa");
// Serial.print("Approx. Altitude = ");
// Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
// Serial.println(" m");
// Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
// Serial.println(" m");
Serial.print("Humidity = ");
Serial.print(bme.readHumidity() + 5);
Serial.println(" %");
Serial.print(bme.readHumidity() + 5);
Serial.println(" %");
Serial.println();
}
}