https://dl.espressif.com/dl/package_esp32_index.json,http://arduino.esp8266.com/stable/package_esp8266com_index.json
TTGOでBME280を動かすには、下記のプログラムを使う。TTGOとBME280の接続は以下の通り。
(BME280)SCK-(TTGO)27
(BME280)SDO-(TTGO)G
(BME280)SDI-(TTGO)26
(BME280)GND-(TTGO)G
(BME280)VDD-(TTGO)3V
//BME280_ESP32
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme; // I2C
unsigned long delayTime;
void setup() {
Serial.begin(115200);
Wire.begin(26,27);
bool status;
// default settings
status = bme.begin(0x76); //read I2C address 0x76
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
delayTime = 1000;
Serial.println();
}
void loop() {
printValues();
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();
}
