Data Sheet

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

Pmod NAV Reference Manual

Revised January 17, 2017

This manual applies to the Pmod NAV rev. C

DOC#: 510-326

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 3

Overview

The Digilent Pmod NAV (Revision C) uses the LSM9DS1 3-axis accelerometer, 3-axis gyroscope, 3-axis

magnetometer, plus the LPS25HB digital barometer to provide users with 10-DOF functionality.

1 Functional Description

The Pmod NAV provides a variety of orientation related data allowing users to easily determine the exact position

the module is in and where it is headed. With 16-bit full scale registers for acceleration, rotation, and orientation,

and 24 bits of resolution for pressure data, users can easily figure out if their moving robot is falling over, how high

in the air their hot air balloon is located, or which direction they are facing.

2 Interfacing with the Pmod

The Pmod NAV communicates with the host board via the SPI protocol. By pulling the appropriate chip select line

low (either for the Accelerometer/Gyroscope, the Magnetometer, or the Barometer) users may collect data from

any of the four available sensors on the Pmod NAV.

The accelerometer provides full-scale 16-bit signed data for all three Cartesian axes. All of the data is measured as

linear acceleration since each axis is measured individually and are all isolated from each other. Gyroscopes

The Pmod NAV.

 ±2/±4/±8/±16 g linear acceleration full scale

 ±245/±500/±2000 dps angular rate full scale

 ±4/±8/±12/±16 gauss magnetic full scale

 260-1260 hPa piezoresistive pressure sensor

 Embedded temperature sensors for compensation

 12-pin Pmod connector with SPI interface

 Follows Digilent Interface Specification Type 2A

Features:

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300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com Pmod NAV Reference Manual Revised January 17, 2017 This manual applies to the Pmod NAV rev. C Overview The Digilent Pmod NAV (Revision C) uses the LSM9DS1 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer, plus the LPS25HB digital barometer to provide users with 10-DOF functionality.
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Pmod NAV Reference Manual measure the angular rotation rate of the module, indicating the degrees per second that the module is being rotated around each axis. The magnetometer detects the magnetic field present around the module, including both the earth's magnetic field as well as the local magnetic environment around it. Each of the three magnetic axis registers provide signed 16-bit full-scale data with up to ±16 gauss sensitivity.
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Pmod NAV Reference Manual 4 Physical Dimensions The pins on the pin header are spaced 100 mil apart. The PCB is 0.8 inches long on the sides parallel to the pins on the pin header and 0.8 inches long on the sides perpendicular to the pin header. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.