ADXL202EB232 Analog Devices Inc, ADXL202EB232 Datasheet

no-image

ADXL202EB232

Manufacturer Part Number
ADXL202EB232
Description
Manufacturer
Analog Devices Inc
Datasheet
1.ADXL202EB232.pdf (5 pages)

Specifications of ADXL202EB232

Lead Free Status / Rohs Status
Not Compliant
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
specifically how the ADXL202 may work in the
application, without the need to design HW or SW.
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
applications, such as FFT vibration analysis or
precise time histories. This is a limitation of the
evaluation
accelerometer.
a
designer
software,
combination
understand
not
accelerometers
unsuitable
the
ADXL202
for
and
ADXL202 Evaluation Board with
RS-232 Interface and Datalogging.
all
APPLICATIONS
Development of New Applications
2 Axis tilt sensing with faster response than
electrolytic, mercury or thermal sensors
Datalogging
Instrumentation
Computer Peripherals
Earthquake detectors
Alarms and motion detectors
Battery powered motion sensing
ADXL202EB-232A
8/4/99, Rev. C

ADXL202EB232 Summary of contents

Page 1

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 ...

Page 2

DETAILED DESCRIPTION The ADXL202EB-232A is a dual axis RS-232 output digital accelerometer. The ADXL202EB-232 consists of the ADXL202JQC and the Microchip 16C63 microcontroller. The ADXL202 digital outputs are read using the timer / counter port of the microcontroller. The signals ...

Page 3

GRAPHS. Click on one of the following icons; Line/Chart, FFT, or Spirit Level to display the corresponding graph. Line Chart The Line chart will show you the output of the X and Y accelerometers in either % duty cycle or ...

Page 4

Y Axis LSB Table 3: Data Encoding PWM % = (256 * MSB + LSB) / 100.0 COMPONENTS The demo board consists of an ADXL202 accelerometer, a 16C63 Microchip microcontroller, an ADM666 for voltage regulation of the RS-232 ...

Page 5

VCC R3 RESET 5.11K SW1 U3 PIC16C63 MCLR/VPP RA0 TICKI/RC0 C9 1.00K 3 12 RA1 CCP2/RC1 PB SPST .015uF 4 13 RA2 CCP1/RC2 5 14 RA3 SCK/RC3 6 15 RA4/TOCKI SDI/RC4 ...