• Barometric Pressure Sensor Module GY-68 - I2C Interface - BMP180

Barometric Pressure Sensor Module GY-68 - I2C Interface - BMP180

  • Was  RM29.68 
  • RM21.20

  • Ex Tax: RM20.00
  • Product Code: GY-68
  • Availability: In Stock

This precision sensor from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. Because pressure changes with altitude you can also use it as an altimeter! The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins. The BMP180 is the next-generation of sensors from Bosch, and replaces the BMP085.

The good news is that it is completely identical to the BMP085 in terms of firmware/software/interfacing - you can use any example code/libraries for BMP085 as a drop-in replacement.

 

Applications

  • Optimized for use in mobile phones, PDAs, GPS navigation devices and outdoor equipment.

 

Features

  • High precision digital pressure sensors for consumer applications.
  • Ultra-low power
  • Low-voltage
  • I2C interface

 

Specifications

  • Pressure sensing range: 300-1100 hPa (9000m to -500m above sea level)
  • Up to 0.03hPa / 0.25m resolution
  • -40 to +85°C operational range, +-2°C temperature accuracy

 

Document

 

Connect GY-68 to Arduino

 

 

Arduino Sketch:

#include <Wire.h>
#include <Adafruit_BMP085.h>
 
// Connect VCC of the BMP180 sensor to 3.3V
// Connect GND to Ground
// Connect SCL to i2c clock  thats A5
// Connect SDA to i2c data  thats A4
 
Adafruit_BMP085 bmp;
 
void setup() 
{
  Serial.begin(9600);
  if (!bmp.begin()) 
  {
	Serial.println("BMP180 sensor not found");
	while (1) {}
  }
}
 
void loop() {
    Serial.print("Temperature = ");
    Serial.print(bmp.readTemperature());
    Serial.println(" *C");
 
    Serial.print("Altitude = ");
    Serial.print(bmp.readAltitude(101500));
    Serial.println(" meters");
 
    Serial.println();
    delay(1000);
}

Output

This was the reading from the serial monitor

Temperature = 22.90 *C
Altitude = 103.32 meters

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