The Altimeter Module is a high resolution (20 cm) altimeter sensor with SPI and I2C bus interface.

The module includes a high linearity barometric pressure sensor and a high resolution temperature output, allowing implementation of an altimeter/thermometer without any additional sensors. Different operation modes allow the user to optimize for conversion speed or current consumption. The module is designed for use with a large variety of microcontrollers with different voltage requirements.

Features:
  - High resolution 20 cm or altitude
  - Thermometer of -40 to +85 °C with <.01 °C resolution
  - Pressure range of 10–1200 mbar
  - Supports I²C and SPI communications
  - 24-bit pressure and temperature values
  - Successfully tested at 120,000 feet

Application Ideas:
  - Mobile altimeter / barometer systems
  - Rate of climb and descent Indicator (RCDI)
  - Height sensing
  - Navigation
  - Weather station
  - Altitude hold for UAVs
  - IMU builds
  - High altitude balloons

Key Specification:
  - 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)