DP-001
Digital Infrared Motion Detector Module
With NEW PerkinElmer PYD 1998 Digital Pyro® Sensor
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MODULE SIZE 3/4 INCH (19MM) DIAMETER x 3/8 INCH (9.6MM) THICK |
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MODULE PRICE $22.95 |
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New miniature motion detector module with PerkinElmer PYD 1998 Digital Pyroelectric Infrared Sensor operates on 4 to 15 volts at only 45 microamperes.
The module is a basic building block designed for use in the construction of a motion detector device. It includes a digital pyroelectric infrared sensor, a microprocessor and an output transistor. An on-board voltage regulator powers the circuits and accepts a 4 to 15 volt DC power supply voltage.
The DP-001 eliminates the need to design and build the complex amplifier and comparator circuits that must follow a typical analog pyroelectric infrared sensor. The output transistor within the DP-001 can sink up to 100 milliamperes to directly drive a relay, light emitting diode or other load. The output can also be fed into a logic or timing circuit to add specific functions such as robot control or triggering a camera shutter.
The DP-001 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.
Features______
- Small 3/4 inch (19mm) diameter, 3/8 inch (9.6mm) thick module
- On board voltage
regulator
- Can be powered by 4 to 15 volts DC
- Micropower circuits
for low current drain
- Average current < 45 microamperes
- Long battery life
- High current output
driver
- 100 milliampere current sink
- Can directly drive a remote relay
- Programmable
sensitivity setting
- Adjusts detection range
- Programmable dwell
setting
- Adjusts output ON time from 200 ms to 5 minutes
- Only five wire
connections needed
- Two for power
- One for output
- Two for sensitivity and dwell programming
Digital Pyro® Technology
The Glolab DP-001 module uses a PerkinElmer PYD 1998 Digital Pyro® infrared detector. This new technology incorporates a sensor, amplifier, filter, A/D converter in one TO5 package.
Unlike typical analog pyroelectric sensors, the PYD 1998 outputs serial data pulses that represent the amplitude of detected infrared radiation in 14 bit 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.
Below is a block diagram of the DP-001 module. Power is supplied to the PYD 1998 Sensor and the processor through a micropower voltage regulator. The processor decodes the serial bits from the PYD 1998 and turns an NFET transistor on when motion is detected. The amount of time that the NFET remains on (dwell) can be programmed by an external resistor and can be set for one of five times from 200 milliseconds to 5 minutes. Detection sensitivity that affects detection range can also be programmed for one of five sensitivity levels by an external resistor. The module is supplied with default settings of medium sensitivity and 1 second dwell time.
A diode within the module will suppress voltage transients from inductive loads such as a relay or small motor. An LED or relay connected from +V to the output terminal will turn on when motion is detected.
A minimum of three wires must be connected to the DP-001; two for power and one for output. Since all three wires carry only DC levels and not signals, the DP-001 module can be located remotely from the load that it drives.
Driving a light emitting diode
A resistor is required in series with the LED to limit current. The resistor value can be chosen for the power supply voltage and the desired LED intensity.
Driving a relay
The DP-001 has an internal suppressor diode for inductive loads. The relay coil voltage rating should match the power supply voltage used. A solid state relay can also be used.
Driving a relay with multiple DP-001 modules
Two or more DP-001 modules can be bussed together so that multiple sensors can be used to detect motion in many directions and activate one load.
Wireless motion detector
A wireless motion detector can be made by connecting a DP-001 module to a KTGP418 transmitter kit to send a wireless signal to a KRGP418 receiver kit. Up to four DP-001 modules can be connected to one KTGP418 transmitter kit.
A Fresnel lens or other type of lens can be used with the DP-001 for long range detection.
See how to order
and
view or print a complete manual for the DP-001
module. Manual includes functional description and
application diagrams.
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