Datasheet > HM55B

HM55B

更新时间： 2024-11-14 05:36:15

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
25页	643K
描述
Compass Module

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HM55B 数据手册

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Hitachi^®HM55B Compass Module (#29123)

General Description

The Hitachi HM55B Compass Module is a dual-axis magnetic field sensor that can add a sense of direction

to your next electronic or robotic project. The sensing device on the Compass Module is a Hitachi HM55B

chip. An onboard regulator and resistor protection make the 3 volt HM55B chip compatible with 5 volt

BASIC Stamp^®microcontroller supply and signal levels. The Compass Module also makes all the power

and signal connections on the tiny surface mount HM55B chip accessible in a breadboard-friendly 0.3 inch

wide 6-pin DIP package. Acquiring measurements from the module is made easy with the BASIC Stamp

2 microcontroller's SHIFTIN and SHIFTOUT commands, which are designed for synchronous serial

communication with chips like the HM55B.

Features

•

Sensitive to microtesla (µT) variations in magnetic field strength

Simplifies direction by resolving magnetic field measurements into two component axes

Good for 6-bit (64-direction) resolution measurements after software calibration

Only 30 to 40 ms between start measurement and data-ready

Built-in resistor protection for data pins eliminates bus conflict risks

Compact and breadboard-friendly 0.3 inch, 6-pin DIP package

Compatible with all BASIC Stamp, Javelin Stamp and SX microcontrollers

Makes communication and direction calculations especially easy with the PBASIC commands

SHIFTOUT, SHIFTIN, and ATN for the BASIC Stamp 2 series of microcontrollers

Application Ideas

•

Mobile robot direction sensor

Handheld electronic compass

Weathervane indicator for remote weather stations

Audible compass for the vision impaired

Automotive electronic compass

Quick Start Circuit

29123

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