86 lines
2.0 KiB
Arduino
86 lines
2.0 KiB
Arduino
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// BMP180_I2C.ino
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//
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// shows how to use the BMP180MI library with the sensor connected using I2C.
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//
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// Copyright (c) 2018 Gregor Christandl
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//
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// connect the BMP180 to the Arduino like this:
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// Arduino - BMC180
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// 5V ------ VCC
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// GND ----- GND
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// SDA ----- SDA
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// SCL ----- SCL
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#include <Arduino.h>
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#include <Wire.h>
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#include <BMP180MI.h>
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#define I2C_ADDRESS 0x77
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//create an BMP180 object using the I2C interface
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BMP180I2C bmp180(I2C_ADDRESS);
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(9600);
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//wait for serial connection to open (only necessary on some boards)
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while (!Serial);
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Wire.begin();
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//begin() initializes the interface, checks the sensor ID and reads the calibration parameters.
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if (!bmp180.begin())
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{
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Serial.println("begin() failed. check your BMP180 Interface and I2C Address.");
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while (1);
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}
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//reset sensor to default parameters.
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bmp180.resetToDefaults();
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//enable ultra high resolution mode for pressure measurements
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bmp180.setSamplingMode(BMP180MI::MODE_UHR);
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}
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void loop() {
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// put your main code here, to run repeatedly:
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delay(1000);
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//start a temperature measurement
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if (!bmp180.measureTemperature())
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{
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Serial.println("could not start temperature measurement, is a measurement already running?");
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return;
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}
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//wait for the measurement to finish. proceed as soon as hasValue() returned true.
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do
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{
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delay(100);
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} while (!bmp180.hasValue());
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Serial.print("Temperature: ");
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Serial.print(bmp180.getTemperature());
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Serial.println(" degC");
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//start a pressure measurement. pressure measurements depend on temperature measurement, you should only start a pressure
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//measurement immediately after a temperature measurement.
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if (!bmp180.measurePressure())
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{
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Serial.println("could not start perssure measurement, is a measurement already running?");
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return;
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}
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//wait for the measurement to finish. proceed as soon as hasValue() returned true.
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do
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{
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delay(100);
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} while (!bmp180.hasValue());
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Serial.print("Pressure: ");
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Serial.print(bmp180.getPressure());
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Serial.println(" Pa");
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}
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