28029 Parallax Inc, 28029 Datasheet - Page 245

• 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

a.
If you're driving a car, when the car accelerates forward, you can feel the seat pushing
you forward. Well, if you make a sharp right turn, the left side of the car pushes you to
the right. That's because you are accelerating right as you turn. This is shown in Figure
6-7, which illustrates how an object can be traveling forward at a constant velocity, and
to make it turn, it always has to be accelerating toward the center of the circle it is
traveling in.
Figure 6-8 shows a graph of the accelerometer's x-axis measurements as the RC car is
first driven in circles turning left, then in circles turning right. Notice how the x-axis
measurement shows positive acceleration as the RC car circles to the left, and negative
acceleration as the car circles to the right.
b.
Chapter 6: Accelerometer Projects · Page 233
Figure 6-7
Traveling in a Circle
This causes continuous
acceleration toward the
center.
Figure 6-6
RC Car Acceleration vs
Accelerometer Sensing
Axes