28029 Parallax Inc, 28029 Datasheet - Page 83
28029
Manufacturer Part Number
28029
Description
KIT PARTS SMART SENSORS W/TEXT
Manufacturer
Parallax Inc
Datasheet
1.122-28029.pdf
(340 pages)
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
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ACTIVITY #2: MOBILE MEASUREMENTS
This activity will display the Memsic Accelerometer's measurements on the Parallax
Serial LCD. Provided you're using a battery, after programming you can disconnect from
your computer and take the setup to remote locations of your choosing.
Connecting Both Modules to the BASIC Stamp
Both the Memsic Accelerometer and the Serial LCD can fit on your board at the same
time, so there will be no need for extension cables unless you chose to mount the Parallax
Serial LCD near the Board of Education or in a project box.
Parts Required
(1) Memsic 2125 Accelerometer
(1) Parallax Serial LCD (2×16)
(5) Jumper Wires
(2) Resistors 220 Ω
√
√
√
√
√
√
√
√
Grab the edge of the board with the Y-Axis label and gradually lift it toward you.
The
Keep tilting the board toward you until it's straight up and down. The Debug
Terminal should report that the
Lay the board flat again.
Next, instead of tilting the board toward you, gradually tilt it away from you.
The
the board until it’s straight up and down.
Lay the board flat again.
Repeat this test with the x-axis. As you tilt the board up with your right hand,
the
vertical. As you tilt the board upward with your left hand, the
approach 1875.
Finally, hold your board in front of you, straight up and down like a steering
wheel.
As you slowly rotate your board, the
values will be used in another activity to determine the rotation angle in degrees.
x
y
y
value should increase as you increase the tilt.
value should increase and reach a value near 3125 when the board is
value should drop below 2500 and gradually decrease to 1875 as you tilt
y
Chapter 3: Tilt with the Memsic Accelerometer · Page 71
variable stores a value near 3125.
x
and
y
values should change. These
x
value should
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