What is the range of HC-SR501?
7 meters
The HC-SR501 has a maximum sensing distance (detection range) of 7 meters. You can adjust the sensing distance by rotating the sensitivity potentiometer CW or CCW (see picture above). Rotating the potentiometer clockwise increases the sensing distance to a maximum of 7 meters.
How does HC-SR501 work?
HC-SR501 is basically a motion detector sensor, which uses infrared waves for detection of an object. It is an automatic control device, also have large sensitivity and high reliability. It is used in auto-sensing control devices, where we need to perform motion detection.
What is HC-SR501 PIR Sensor?
The PIR sensor is a passive sensor (which means it hardly uses any energy to work). It detects infrared radiation from a passing heat source.
How much current does a PIR draw?
Generally although a PIR-sensor-based lighting device will turn on when motion is detected, and will turn off when the motion disappears, the device still consumes 1-3 W power when the lamp is off. In our design the device consumes 0.007 W when the light is off, and is not only easy to set up but also inexpensive.
What is the full form of PIR sensor?
Passive infrared (PIR) sensors use a pair of pyroelectric sensors to detect heat energy in the surrounding environment.
How can I reduce the range of my PIR sensor?
Use masking tape around the sensor for a temporary adjustment and locate the area which works for your sensitivity. Then for a permanent solution remove the tape and just paint over the area where the masking tape was placed.
Can PIR sensor detect distance?
Range of Different PIR Sensors Indoor passive infrared: Detection distances range from 25 cm to 20 m.
What kind of Technology is hc-sr501 based on?
HC-SR501 is based on infrared technology, automatic control module, using Germany imported LHI778 probe design, high sensitivity, high reliability, ultra-low-voltage operating mode, widely used in various auto-sensing electrical equipment, especially for battery-powered automatic controlled products. 1.
What’s the maximum sensing range of the hc-sr501?
The HC-SR501 has a maximum sensing distance (detection range) of 7 meters. You can adjust the sensing distance by rotating the sensitivity potentiometer CW or CCW (see picture above). Rotating the potentiometer clockwise increases the sensing distance to a maximum of 7 meters.
Can a Pir Module Drive a HC SR501?
For driving a high current module you have to use a transistor at the output of the PIR module and then you will be able drive that high current device. Using HC SR501 Module With Arduino , Raspberry Pi Or Other Boards and Microcontrollers.
What are the solder pads on the hc-sr501?
As can be seen in the image below, the HC-SR501 has solder pads for two additional components. These pads are typically labeled ‘RL’ and ‘RT’. RL – Here you can add a light dependent resistor (LDR) or photoresistor which has a low resistance under strong ambient light.