Modules for various types of sensors including accelerometers. gyro's, IR motion, etc
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This module has been designed as an alternative to the PIR motion detectors commonly used in burglar alarms. Instead of sensing changes in infrared radio emitted by a moving person this sensor uses a microwave Doppler radar to detect moving objects. It has a sensitivity range of ~7 meters. When triggered its trigger output pin will switch from (LOW) 0V to high (3.3V) for ~ 2 to 3 seconds before returning to its idle LOW state.
Product code: HCSENS0040
Supply Voltage: 5V dc
Supply Current: >3mA (2.8mA typical)
Operating frequency: ~3.2GHz
Transmit power: 20mW (typical) / 30mW (max)
Size: 36mm x 17mm
Component side should face detection area for maximum sensitivity
Do not place metal objects within 1cm of antenna
Trigger out - HIGH (3.3V) motion / LOW no motion
3.3V output is for reference only - do not use to power other devices.
Device operates at ~3.2GHz/20 - 30mW. In some countries it may be illegal to operate this device.
3V3..........Regulated output (reference only)
GND.........Ground / 0V supply input
OUT..........Trigger: HIGH (3.3V) motion detected / LOW (0V) idle
VIN.......... 5V-12V supply input
CDS..........Sensor disable input (pull low to disable)
Can I connect it to your 5V relay module (HCARDU0001)?
Yes you can directly connect the out pin of the sensor to the trigger (S) pin of the relay module. The relay will then trigger whilst motion is detected by the sensor.
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need Fritzing parts file
I don't know if there is a Fritzing part in existence for this module but I'm afraid we don't possess one. Although the image looks a little like a Fritzing part is actually just one of our own drawings.
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This is CAT5 chewing my wiring from the Cat Detector. The detector is powered by a 5v USB breakout plug (red) and the RCWL is green. The 3.3 v Blue LED is directly wired to OUT and GND with no dropping resistor (current limited) and the output goes into the Raspberry Pi 3 GPIO. Notice only one wire attached as power and ground comes from the USB plug.
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