BMP180+nodeMCU output problems
Posted: Mon May 02, 2016 1:10 pmhello, i am a beginner with esp8266, but i can use pretty well arduino. so I installed the board on my arduino IDE, uploaded the blink example and it works well. So i connected a bmp180 sensor(witch i want to use for a simple IOT weather station).
SDA=> D1 pin
SCL=> D2 pin
VCC=>3w pin
GND=GND
and i wrote this code (taken from the original code used for arduino)
and the serial outputs:
this outputs are absolutely fake, so i need to know where i'am failing because with arduino the same code works well
thanks for support
SDA=> D1 pin
SCL=> D2 pin
VCC=>3w pin
GND=GND
and i wrote this code (taken from the original code used for arduino)
Code: Select all
#include <Wire.h>
#include <BMP180.h>
#define SDAPIN 04
#define SCLPIN 05
// Store an instance of the BMP180 sensor.
BMP180 barometer;
// We are going to use the on board LED for an indicator.
// Store the current sea level pressure at your location in Pascals.
float seaLevelPressure = 101325;
void setup()
{
// We start the serial library to output our messages.
Serial.begin(9600);
// We start the I2C on the Arduino for communication with the BMP180 sensor.
Wire.begin();
// Set up the Indicator LED.
//pinMode(LED_BUILTIN, OUTPUT);
// We create an instance of our BMP180 sensor.
barometer = BMP180();
// We check to see if we can connect to the sensor.
if(barometer.EnsureConnected())
{
Serial.println("Connected to BMP180."); // Output we are connected to the computer.
//digitalWrite(LED_BUILTIN, HIGH); // Set our LED.
// When we have connected, we reset the device to ensure a clean start.
barometer.SoftReset();
// Now we initialize the sensor and pull the calibration data.
barometer.Initialize();
}
else
{
Serial.println("No sensor found.");
//digitalWrite(LED_BUILTIN, LOW); // Set our LED.
}
}
void loop()
{
if(barometer.IsConnected)
{
// Retrive the current pressure in Pascals.
long currentPressure = barometer.GetPressure();
// Print out the Pressure.
Serial.print("Pressure: ");
Serial.print(currentPressure);
Serial.print(" Pa");
// Retrive the current altitude (in meters). Current Sea Level Pressure is required for this.
float altitude = barometer.GetAltitude(seaLevelPressure);
// Print out the Altitude.
Serial.print("\tAltitude: ");
Serial.print(altitude);
Serial.print(" m");
// Retrive the current temperature in degrees celcius.
float currentTemperature = barometer.GetTemperature();
// Print out the Temperature
Serial.print("\tTemperature: ");
Serial.print(currentTemperature);
Serial.write(176);
Serial.print("C");
Serial.println(); // Start a new line.
delay(1000); // Show new results every second.
}
}and the serial outputs:
this outputs are absolutely fake, so i need to know where i'am failing because with arduino the same code works well
thanks for support