NodeMCU and BME280
Posted: Mon Mar 05, 2018 3:25 pmHello everyone,
I have a NodeMCU and a BME280 sensor board. Is it safe/reasonable to connect the VCC-GND-SCL-SDA-CSB-SDO of the BME280 to 3v3-GND-D5-D6-D7-D8 of the NodeMCU? How can I access them afterwards? This is what I tried, which did not work.
Apparently, there exist several versions of the BME280. Mine looks like this: https://www.my-batteries.net/ebay/image ... E280-1.jpg
I have a NodeMCU and a BME280 sensor board. Is it safe/reasonable to connect the VCC-GND-SCL-SDA-CSB-SDO of the BME280 to 3v3-GND-D5-D6-D7-D8 of the NodeMCU? How can I access them afterwards? This is what I tried, which did not work.
Code: Select all
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
// assign the ESP8266 pins to arduino pins
#define D1 5
#define D2 4
#define D3 0
#define D4 2
#define D5 14
#define D6 12
#define D7 13
#define D8 15
#define D9 3
// assign the SPI bus to pins
#define BME_SCK D5 // SCL
#define BME_MOSI D6 // SDA
#define BME_CS D7 // CSB
#define BME_MISO D8 // SDO
#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme;//(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
unsigned long delayTime;
void setup() {
Wire.begin(D6, D5);
Wire.setClock(100000);
Serial.begin(9600);
Serial.println(F("BME280 test"));
bool status;
// default settings
status = bme.begin();
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
Serial.println("-- Default Test --");
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();
}
Apparently, there exist several versions of the BME280. Mine looks like this: https://www.my-batteries.net/ebay/image ... E280-1.jpg
