Motion Detector Module
NEW Digital Sensor
Motion Detector module operates on 3 to 5 volts at only 40 microamperes is
ideal for OEM applications.
tiny module is a basic
building block designed for use in the construction of a motion detector device.
It is only 0.5 X 0.7 inch and includes a digital pyroelectric infrared sensor and a microprocessor.
The DP-002A eliminates the complex amplifier and comparator circuits that must follow a
typical analog pyroelectric infrared sensor. The DP-002A
output can source and
sink up to 25 milliamperes to directly drive a light emitting diode or
other load. The output can also be fed into a logic or other circuit to add
specific functions such as robot control or triggering a camera shutter.
The DP-002A is designed to detect infrared
radiation (IR) from a moving human or animal both in daylight and at night. It
will only respond to a moving source of infrared radiation. It will not detect a
static IR source. It can be powered by a 3 volt lithium coin
cell, three AAA cells or a 3 to 5 volt filtered and regulated power supply.
AAA AND CR2032 COIN CELL
OPTIONAL PIN HEADERS
0.35 inch (8.9mm) thick, 0.5 inch (12.7mm) wide, 0.7 inch
- Can be powered by 3 to
5 volts DC
- Micropower circuits
for low current drain
- Average current
- Long battery life
Microprocessor output 0 to VDD
- 25 milliampere
source and sink current
- Can directly drive
an LED and piezo buzzer
- Programmable dwell
- Adjusts output ON
time from 200 milliseconds to
- Two for power
- One for output
Glolab DP-002A module uses a Digital infrared detector.
This new technology incorporates a sensor, amplifier, filter, A/D converter in
one TO5 package.
Unlike typical analog pyroelectric sensors, the
digital sensor outputs serial data pulses that represent the amplitude of detected
infrared radiation in digital form. Since all of the amplification and
signal processing is done within the sensor package, the detector has very high
immunity to RF radiation from cell phones and other sources.
is a block diagram of the DP-002A module. The processor decodes the serial bits from the
digital sensor and
outputs a high level when motion is detected. The amount of time that the
remains on (dwell) can be programmed by an external resistor and can be set
for one of ten times from 200 milliseconds to 10 minutes. Detection sensitivity that affects detection
range can also be programmed for one of five sensitivity
levels by an external resistor that is connected only
during programming. The module is supplied
with default settings of medium sensitivity and 1 second dwell time.
A minimum of three wires must be connected to the
two for power and one for output. Since all three wires carry only DC levels
and not signals, the DP-002 module can be located remotely from the load that
lens or other type of lens can be
used with the DP-002A for long range detection.
See how to
view or print a complete manual for the DP-002A
module. Manual includes functional description and
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