Datasheet

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Altimeter Module MS5607 (#29124)

The Altimeter Module is a high-resolution (20 cm) altimeter sensor, with SPI and I

C bus interface. The

module includes a pressure sensor and a temperature output, allowing implementation of an

altimeter/thermometer/barometer without any additional sensors. It provides a precise digital 24-bit

pressure and temperature value.

Features



High resolution: 20 cm

 Thermometer range: -40 to +85 °C, with

<.01 °C resolution

 Pressure range: 10 to 1200 mbar

 Supports I²C and SPI communications

 24-bit pressure and temperature values

Key Specifications



Power requirements: 3.3 to 6.5 VDC

 Communication interface: I²C (up to 400 kHz) or

SPI (20 MHz)

 Operating temperature: -40 to +185 °F (-40 to +85 °C)

 Dimensions: 0.85 X 0.80 in (2.16 X 2.03 cm)

Application Ideas



Mobile altimeter / barometer systems

 Rate of climb and descent indicator (RCDI)

 Height sensing

 Navigation

 Weather station

 Altitude hold for UAVs

 IMU builds

Downloads & Resources

More resources, example code, the device schematic, and open-source hardware files are available from

the 29124 product page at www.parallax.com.

Summary of content (5 pages)

PAGE 1
Web Site: www.parallax.com Forums: forums.parallax.com Sales: sales@parallax.com Technical: support@parallax.com Office: (916) 624-8333 Fax: (916) 624-8003 Sales: (888) 512-1024 Tech Support: (888) 997-8267 Altimeter Module MS5607 (#29124) The Altimeter Module is a high-resolution (20 cm) altimeter sensor, with SPI and I2C bus interface. The module includes a pressure sensor and a temperature output, allowing implementation of an altimeter/thermometer/barometer without any additional sensors.
PAGE 2
Quick-Start Guide The following is a very basic procedure to get started initializing and reading values from the Altimeter Module. Example test code can be found on the 29124 product page at www.parallax.com. This module’s default communication setup is I²C. Use of SPI communication is configured by pulling the PS pin low. See the datasheet for SPI configuration and use. 1. With main power off, make the proper connections between the module and a microcontroller as shown below.
PAGE 3
Device Information All the features of the MS5607 Altimeter IC are covered in full detail in the device datasheet. Pin Definitions and Ratings Pin Name Type Function 1 GND G 0 V supply, ground pin 2 VIN P Supply voltage from +3.3 to +6.
PAGE 4
Theory of Operation The MS5607 consists of a piezo-resistive sensor and a sensor interface IC. The main function of the MS5607 is to convert the uncompensated analogue output voltage from the piezo-resistive pressure sensor to a 24-bit digital value, as well as providing a 24-bit digital value for the temperature of the sensor. For details on pressure and temperature calculations, please refer to the data sheet and to application note #501 located on the 29124 product page at www.parallax.com.
PAGE 5
Communication Protocol The Altimeter Module has built in two types of serial interfaces: SPI and I2C. Pulling the Protocol Select pin PS low selects the SPI protocol. The module pulls the PS high making the default communication protocol I2C. For details on use of these communication protocols, please refer to the datasheet located on the 29124 product page. Example Code Example code is available for download from the 29124 product page at www.parallax.com.