122-28029 Parallax Inc, 122-28029 Datasheet - Page 105

• Manufacturer Part Number: 122-28029
• Description: GUIDE STUDENT SMART SENSORS
• Manufacturer: Parallax Inc

Specifications of 122-28029

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Smart Sensors
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

component of gravity acting on the y-axis is 1/2 g, and the arctangent of √3/2 ÷ 1/2 is
30°.
Figure 3-22: Accelerometer Rotated 30° Clockwise
When the accelerometer is rotated to 135° clockwise as in Figure 3-23, the component of
gravity acting on the accelerometer's x-axis is A
its y-axis is 1/√2. The arctangent of 1/√2 ÷ (−1/√2) is 135°.
Figure 3-23: Accelerometer Rotated 135° Clockwise
tan
tan
−
−
1
1
⎛
⎜
⎜
⎜
⎜
⎝
⎛
⎜
⎜
⎜
⎜
⎝
−
2
2
1
1
2
2
3
1
⎞
⎟
⎟
⎟
⎟
⎠
⎞
⎟
⎟
⎟
⎟
⎠
=
=
135
30
°
°
Chapter 3: Tilt with the Memsic Accelerometer · Page 93
x
= -1/√2, and the component acting on