brouillons - notes Souad
code bme + neopixel dans arduinoÂ
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/***************************************************************************
 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/2652
 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.
 Adafruit invests time and resources providing this open source code,
 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
 See the LICENSE file for details.
 ***************************************************************************/
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <Adafruit_NeoPixel.h>
#define BME_SCK 13
#define BME_MISO 12
#define BME_MOSI 11
#define BME_CS 10
#define SEALEVELPRESSURE_HPA (1013.25)
#define NUMPIXELS 1
Adafruit_BME280 bme; // I2C
Adafruit_NeoPixel pixels(NUMPIXELS, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
//Adafruit_BME280 bme(BME_CS); // hardware SPI
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
unsigned long delayTime;
void pixel_on(int r, int g, int b){
 pixels.clear();
 pixels.setPixelColor(0, pixels.Color(0, 150, 0));
 pixels.show();
}
void setup() {
  Serial.begin(9600);
  while(!Serial);   // time to get serial running
  Serial.println(F("BME280 test"));
  unsigned status;
 Â
  // default settings
  status = bme.begin(); Â
  // You can also pass in a Wire library object like &Wire2
  // status = bme.begin(0x76, &Wire2)
  if (!status) {
    Serial.println("Could not find a valid BME280 sensor, check wiring, address, sensor ID!");
    Serial.print("SensorID was: 0x"); Serial.println(bme.sensorID(),16);
    Serial.print("     ID of 0xFF probably means a bad address, a BMP 180 or BMP 085\n");
    Serial.print("  ID of 0x56-0x58 represents a BMP 280,\n");
    Serial.print("     ID of 0x60 represents a BME 280.\n");
    Serial.print("     ID of 0x61 represents a BME 680.\n");
    while (1) delay(10);
  }
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  Serial.println("-- Default Test --");
  delayTime = 1000;
  Serial.println();
}
void loop() {
  printValues();
  if(bme.readTemperature()<30){
   pixel_on(0,150,0);
  }
  else{
   pixel_on(150,0,0);
  }
  delay(delayTime);
}
void printValues() {
  Serial.print("Temperature = ");
  Serial.print(bme.readTemperature());
  Serial.println(" °C");
  Serial.print("Pressure = ");
  Serial.print(bme.readPressure() / 100.0F);
  Serial.println(" hPa");
  Serial.print("Approx. Altitude = ");
  Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
  Serial.println(" m");
  Serial.print("Humidity = ");
  Serial.print(bme.readHumidity());
  Serial.println(" %");
  Serial.println();
}