
a
ADXL202 Evaluation Board with
RS-232 Interface and Datalogging.
ADXL202EB-232A
FEATURES
Evaluation board with ADXL202, Microchip
16C63
Two axis acquisition of acceleration or tilt
information
PC Data acquisition software
275Hz Max Sample Rate (PC dependent)
Powered from RS-232 Port
Datalogging Capability
IC socket location for verifying ADXL202
devices
GENERAL DESCRIPTION
The ADXL202EB-232A is an evaluation board for
the ADXL202 dual axis, 2 g accelerometer. The
board demonstrates the ADXL202 interface to a low
cost microcontroller, the Microchip 16C63, and is
configured to read the PWM signals from the
ADXL202, process them and convert them to a
serial protocol for communication to a PC RS-232
port. Software is provided to read the RS-232 port
and display real time acceleration data. A data
logging feature is also included, so that data can be
stored for later evaluation by a spreadsheet or other
tool.
The evaluation board is designed specifically to help
the
designer
understand
specifically how the ADXL202 may work in the
application, without the need to design HW or SW.
accelerometers
and
The firmware for the Microchip microcontroller and
recommended firmware for other microcontrollers is
available for free on the Analog Devices Website,
(www.analog.com/imems/). This product is meant
as an evaluation board. Therefore, you may find the
board/software combination unsuitable for all
applications, such as FFT vibration analysis or
precise time histories. This is a limitation of the
evaluation
software,
accelerometer.
not
the
ADXL202
APPLICATIONS
Development of New Applications
Computer Peripherals
Earthquake detectors
Alarms and motion detectors
Battery powered motion sensing
2 Axis tilt sensing with faster response than
electrolytic, mercury or thermal sensors
Datalogging
Instrumentation
8/4/99, Rev. C