28029 Parallax Inc, 28029 Datasheet - Page 138

• Manufacturer Part Number: 28029
• Description: KIT PARTS SMART SENSORS W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28029

• Accessory Type: Parts Kit
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp® or Javelin Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 28029PAR

Page 126 · Smart Sensors and Applications
Figure 4-5: Bar Magnet’s Field above the Compass Module
Note how the magnetic field acting on the compass module was the opposite of what the
poles on the bar magnet showed. That's because of the way the magnetic field wraps
around from the bar magnet's north to south poles. Figure 4-5 illustrates this with
magnetic field lines that show the magnetic field's pattern around a bar magnet.
√
Keep the bar magnet horizontal at the same height, and rotate it so that its N and
S poles are no longer aligned with the earth's magnetic north and south. As you
rotate it, the bar magnet’s rotation should be pretty easy to track with the Debug
Terminal.