pir sensor | LK Tronics

RCWL-0516 Microwave Radar sensor module induction switch module Intelligent sensor Output 3.3V

lahiru Dhananjaya — Thu, 23 Mar 2023 01:55:59 +0000

LK Tronics
RCWL-0516 Microwave Radar sensor module induction switch module Intelligent sensor Output 3.3V

RCWL 0516 Microwave Radar Sensor Switch Module Body Induction Module 4-28V 100mA

Introduction

This mini doppler radar sensor module is equipped with supporting DC 4-28V wide voltage This is a mini radar motion sensor module is equipped with RCWL-9196 chip based on the doppler microwave induction technology. It will automatically comtinuously output the high level TTL signel when there is motion. 360 degree no blind angle detection and maximum 7m sensoring distance with adjustable delay time and sensitivity. It is perfect for DIY microwave motion sensor light switch, human sensor toys, smart security devices, etc.

Notice:

1.The right ahead of induction side should’t place any metal to block

2.The front/back side should reserve more than 1cm space

3.Module and installation carrier

Features

Equipped with RCWL-9196 chip supporting 4-28V wide voltage input, high level signal output when detecting the motion with active repeat trigger
360 degree no blind angle detection with 5-7m deteciting distance, the detection not affected by the surroundings, better performance than the IR sensor
Support night detecting function turn on /off, adjustable repeat trigger time and detecting distance by add the SMD components to the corresponding pins
Working Voltage: DC 4-28V, Board Size: 35.9 X 17.3mm/1.41 X 0.68inch

Specifications

Operating Voltage: 4-28V
Operating Current: 2.8mA (typical); 3mA (max)
Detection Distance: 5-9m
Transmitting Power: 20mW (typical); 30mW (max)
Output Voltage: 3.2-3.4V
Output Voltage Driving Capacity: 100mA
Trigger Way: repeat trigger
Output Control Low Level: 0V
Output Control High Level: 3.3V
Operating Temperature: -20~80 celsius
Storage Temperature: -40~100 celsius

Adjustment Part Introduction:

1.C-TM Adjust repeat trigger time,default trigger time is 2s;increasing capacitor’s capacity will make repeat trigger time longer;and actual counting trigger time can operate as below: Stick capacitor on C-TM,test 9196 3-pin frequency F,repeat trigger time T=(1/f)*32768

2.R-GN Detection distance adjustment;connect with resistor and detection distance will become shorter;if not connect,detection distance is 7m;if connect with 1M ohm resistor,detection distance is 5m

3.R-CDS Internal VCC parallel connect with internal 1M ohm resistor to CDS pin (that is 196 9-pin) by R-CDS ,CDS connects with photoresistor,you can close detection function at night

Pin Definition:

3V3:3V3 power output
GND:ground
OUT:control output;when detect moving objects,it will output high level
VIN:input voltage,4-28V
CDS:enable control chip,lower than 0.7V,OUT will output low level all the time

Package list

RCWL 0516 Microwave Radar Sensor Switch Module x1

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RCWL-0516 Microwave Radar sensor module induction switch module Intelligent sensor Output 3.3V
lahiru Dhananjaya

PIR sensor HC-SR501

lahiru Dhananjaya — Sun, 10 Feb 2019 08:28:02 +0000

LK Tronics
PIR sensor HC-SR501

PIR sensor HC-SR50

PIR (Passive Infrared) sensors are widely used for motion detection. Here’s a general overview of their specifications, focusing on the commonly used HC-SR501 model as an example:

Specifications:

Operating Voltage: 5v
Quiescent Current: < 50 µA
Output Voltage (High): 3.3V
Output Voltage (Low): 0V
Sensing Distance: Up to 7 meters (can vary with different models)
Detection Angle: Approximately 120 degrees
Trigger Mode:
- Retriggerable (L): The sensor can re-trigger after the delay time if the motion continues.
- Non-retriggerable (H): The sensor won’t re-trigger until the output has gone low.
Delay Time: Adjustable from 0.3 seconds to 200 seconds
Block Time: 2.5 seconds (default)
Dimensions: Typically around 32mm x 24mm (can vary with different models)
Operating Temperature Range: -15°C to +70°C

Key Features:

Adjustable Sensitivity: A potentiometer will be used to adjust the detection range.
Adjustable Delay Time: Potentiometer to set how long the output stays high after detection.
Wide Operating Voltage Range: Compatible with various microcontroller voltages.
Low Power Consumption: Ideal for battery-operated devices.
Digital Output: Easy interfacing with most microcontrollers.
Built-in Amplifier and Comparator: Simplifies the sensor design.

Typical Applications:

Motion-activated lighting
Security and alarm systems
Automated door openers
Human presence detection
Robotics
Energy-saving devices

Usage Tips:

Positioning: Place the sensor in a location with a clear line of sight to the monitored area.
Environment: Avoid placing the sensor in areas with high airflow or near sources of heat, as this can cause false triggers.
Calibration: Allow the sensor a few minutes to calibrate after powering it on, as it may initially produce unstable readings.

Package Include:

1 x HC-SR501 sensor

Working Principle and Code:

For More Details Please Refer to this Link: https://lk-tronics.com/pir-sensor-with-arduino/What is PIR sensor with Arduino

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https://lk-tronics.com/wp-content/uploads/2019/02/LKSEN00003_PIR-Sensor-Edited.mp4

PIR sensor HC-SR501
lahiru Dhananjaya