5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi
$9.49
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Product description
HC-SR501 PIR Motion Sensor
Human Body Pyroelectricity Infrared PIR Motion Detector Sensor Module
Operating voltage range: DC 4.5-20VQuiescent Current: <50uATrigger: L can not be repeated trigger/H can be repeated trigger (Default repeated trigger)It has pin header to select trigger modeDelay time: 0.5-200S (adjustable) the range is (0.xx second to tens of second)Block time: 2.5S (default)Can be made a range (0.xx to tens of seconds)Board Dimensions: 32mm*24mmAngle Sensor: <100 ° cone angle Lens sizeHC-SR501 Sensor Diameter: 23mm(Default) Usage
This PIR motion sensor can automatically and quickly open various types of incandescent, fluorescent lamps, buzzer, automatic doors, electric fans, automatic washing machine and dryer Machines and other devices, it is a high tech products.
Especially suitable for enterprises, hotels, shopping malls, warehouses and family aisles, corridors and other sensitive Sense of region, or for the security zone automatic lighting, lighting and alarm systems. Also, it can work with Arduino or Raspberry Pi projects.You can use these sensors to connect lamps at home as well.
Package Included: 5 X Stemedu HC-SR501 PIR Infrared Motion Sensor
Adjustable Delay Time
With induction blocking time (default setting: 3-4 seconds): After each induction output (high level to low level), the induction module can set a blocking time immediately, and sense in this time period The device does not receive any induction signal. This function can realize the interval work (induction output time and blocking time), and can be applied to interval detection products; at the same time, this function can effectively suppress various interferences generated during load switching.
Features
1. Fully automatic induction: When someone enters its sensing range, input high level, and when people leave the sensing range, it will automatically delay and turn off high level. Output low level.2. Photosensitive control (optional): The module has a reserved position, which can be set for photosensitive control, and does not sense during the day or when the light is strong. Photosensitive control is an optional function, and no photoresistor is installed at the factory. If necessary, please purchase the photoresistor separately and install it yourself.3. Two trigger modes: L can not be repeated, H can be repeated. It can be selected by jumper, the default is H.A. Non-repeatable trigger mode: After the high level is sensed, the output will automatically change from high to low as soon as the delay time ends.B. Repeatable trigger mode: After the induction output is high, during the delay time, if there is a human body moving within its sensing range, its output will remain high until the person leaves. The delay will be high. The level changes to a low level (the sensing module will automatically extend a delay time period after detecting each activity of the human body, and the time of the last activity is the starting point of the delay time).4. Micro power consumption: 65 microamps of quiescent current, especially suitable for electrical products powered by dry batteries.
Instructions for use
1. After the induction module is powered on, there is an initialization time of about one minute, during which time the module will output 0-3 times at intervals, and enter the standby state after one minute.2. Try to avoid interference sources such as lights directly on the lens on the surface of the module, so as to avoid introducing interference signals and causing misoperation; try to avoid the use environment The wind will not flow, and the wind will also cause interference to the sensor.3. The sensing module adopts a dual-element probe. The window of the probe is rectangular. The dual elements (A-element and B-element) are located at both ends of the longer direction. When the human body walks from left to right or from right to left, the infrared spectrum reaches the dual element. There is a difference in the time and distance of the sensor. The larger the difference, the more sensitive the sensor. When the human body walks toward the probe from the front or from top to bottom or from bottom to top, the dual element cannot detect the change in the infrared spectrum distance, no difference Therefore, the sensor is not sensitive or does not work; therefore, when installing the sensor, the direction of the dual element of the probe should be as parallel as possible to the direction where the human body moves the most, so as to ensure that the human body is sensed by the dual element of the probe when it passes by. In order to increase the sensing angle range, this module uses a round lens, which also makes the probe sense on all sides, but the left and right sides are still larger than the upper and lower directions, and the sensitivity is stronger. The installation must still follow the above requirements as much as possible.
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Interface
Type-C Type-C Type-C Type-C Type-C Type-C
Package includes 1
2 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board 2 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board 1 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board 2 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board 2 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board 2 x 0.96″ OLED WiFi Lora ESP32 Type-C (V3) Board
Package includes 2
2 x 868MHz 915MHz GSM IPX IPEX 1.13 UF.L Lora Antenna 2dBi 2 x 868MHz 915MHz GSM IPX IPEX 1.13 UF.L Lora Antenna 2dBi 1 x 915MHz U.FL IPEX to SMA Lora Antenna 2dBi 2 x 868MHz 915MHz GSM IPX IPEX 1.13 UF.L Lora Antenna 2dBi 2 x 868MHz 915MHz GSM IPX IPEX 1.13 UF.L Lora Antenna 2dBi 2 x 868MHz 915MHz GSM IPX IPEX 1.13 UF.L Lora Antenna 2dBi
Package includes 3
2 x Case for Lora ESP32 Type-C Board Terminal wire for lithium battery + pin header Terminal wire for lithium battery + pin header 5 x 915MHz U.FL IPEX to SMA Lora Antenna 2dBi 2 x Case for Lora ESP32 Type-C Board 5 x 1 Slot 18650 Battery Holder Case
Package includes 4
2 x 915MHz Antenna 5DBi SMA Male Omni-directional antenna no data
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Terminal wire for lithium battery + pin header 2 x 915MHz Antenna 5DBi SMA Male Omni-directional antenna Terminal wire for lithium battery + pin header
Package includes 5
Terminal wire for lithium battery + pin header no data
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Terminal wire for lithium battery + pin header no data
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Product name
ESP32 Capacitive Touch Screen 3.5″ Yellow Display Module ESP32-3248S035C BT+WiFi Development Board ST7796 ESP32-WROOM-32 with Integrated Display 480×320 TFT 3.5 inch for Arduino IDE 600PCS/BOX 1/4W Metal Film Resistor Assortment Kit, 1% Resistors Assorted Set, 10 Ohm-1M Ohm Resistance Pack 240pcs Multicolored Dupont Cable 20cm 10cm Breadboard Prototyping Wires Kit 3PCS LM2596 DC to DC Buck Converter 4-40V to 1.25-37V Adjustable Voltage Regulator Step-Down Module with LED Voltmeter Display 3A 5PCS RCWL-0516 RCWL 0516 Microwave Radar Sensor Human Sensor Body Sensor Module Induction Switch Module Output 3.3V ESP32 Touchscreen 2.8inch TFT LCD Display ESP-WROOM-32 ILI9341 Resistive Touch Module 240 * 320 ESP32-2432S028R Bluetooth WiFi Dual Core Development Board
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HC-SR501 Delay Time: 0.5-200S (adjustable), the range is (0.xx second to tens of second), the delay time can be adjusted by using the potentiometer on the HC-SR501 motion sensor.
Operating voltage range: DC 4.5-20V; Quiescent Current: <50uA; Trigger: L can not be repeated trigger/H can be repeated trigger (Default repeated trigger)
Automatically and quickly turn on home devices by detected HC-SR501 motion sensor.
HC-SR501 motion sensor is an economic hightech products. It is widely used.
Angle Sensor: <100 ° cone angle Lens size
13 reviews for 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi
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Phlogiston –
Halloween animatronics
After a couple of decades, I decided to build some new life size figures using some of the latest sensors, relays, and motors. I’m using the HC-SR501 sensors to initiate the animatronics, and found a couple of issues. They work w/o issue, and will continue their use. I also wanted to incorporate a flame bulb that will go in the medieval torch I built out of PVC pipe/fittings, EVA foam, and modelling paste.Regardless of the input voltage, the HC-SR501 output trigger voltage is only 3.3V-3.4V DC. This means I can only use 5V DC opto-relays, instead of 12V opto-relays as their trigger voltage is >4.5V DC. This required making a 5V circuit to power the HC-SR501 and the relays. The video shows the DC-DC Buck converters (blue LEDs) and the 5V DC opto-relays (red LEDs) driving the HC-SR501, one motor, and the flame bulb. The simplified schematic shows the wiring layout I made with applied voltages.The second issue to note with the HC-SR501 is the delay pot. It only takes a 10 degree turn of the pot to go from the minimum delay time of one second to 25 seconds.Their sensitivity is very good. I have yet to try adding a thermistor to the HC-SR501 to test its night time capabilities.FYI: I’m using the B0CMXCZX9Y nylon standoffs (via Amazon) to mount all of these boards.UPDATE: I’m holding back from installing a thermistor. Low light sensitivity is excellent.
Amazon Customer –
As per the HC-SR501 data sheet, stops detecting as temperature approaches 30 degrees celsius
As per the HC-SR501 data sheet, stops detecting (“detection range is shorter”) as temperature approaches 30 degrees celsius (approximately 90 degrees fahrenheit). These units have the through-holes to add a thermistor to improve high temperature performance, if one has a thermistor to add.The real test is if starts detecting again when the temperature drops. I plan to drop my score one star for each unit that permanently fails on me.Worked just fine the first three days I had it connected. Easy to set up. Pins fit well into female Dupont wires for prototyping.
John75 –
Interesting Product with Many Real-World Uses
I set up 2 different doppler motion sensors using these HR-SC501 PIR sensors, one using an Arduino microprocessor and one without. Both worked as advertised, tho the range and sensitivity with the Arduino was much better.
Jake –
Worked great for my fun automation
So my fiancé had the idea to have a Shrek themed party and I thought it would be a great idea to have a speaker yelling at people ‘WHAT ARE YOU DOING IN MY SWAMP’. So I bought these PIR sensors and hooked them up to my Pi 3 and programmed it to play a sound on detection. These are very sensitive so I recommend hiding them so they can only sense one direction.
Ariel –
Belleza
Bien
Joseph St Lucas –
Works like the description says it does!
Hooked up to 5V supply, output toggled from high to low as the description says, tweaked the pots on it to play with it, they work also. Now to figure out what the heck I want to use these with, I bought them for Halloween stuff.
Autumn Eden-Goodman –
Cheap, effective, unmarked, no included documentation
Received this five pack of PIR sensors and, although the pin out is clearly shown on the listing, the boards I received were not marked at all. The photos show nice clean labels. The real boards arrived with absolutely nothing. If you handed one of these to a friend without directions, they would have to guess. If you tossed one on a student’s desk in a science class, they would stare at it, stare at you, and probably decide the project was a trick question. Without any markings or instructions, you need to already know exactly which listing you bought and then go hunt down the correct pin out.This is one of my biggest pet peeves. No manuals, no instructions. Not even a tiny slip of paper with a URL or a QR code. The packaging was completely nondescript. Just an Amazon label and some sensors inside. It felt like opening a snack bag and discovering someone forgot to put the snack in.Before I even tested them, I wanted to get this part written down. If there is a problem during testing, Amazon gives me an easy exchange, so no pressure there. The good news is that the sensors do use the standard BISS0001 chipset, so there is nothing mysterious inside. The capacitors are nice and beefy, the modules look well built, and you cannot really argue with the price. A quick visual inspection shows decent quality and no alarming surprises.After pulling up the spec sheet from the listing, I wired one to my Raspberry Pi 5 using the GPIO pins and ran a few quick motion detection scripts. It worked flawlessly. Sensitivity adjustment worked from about three to seven meters. The timing control worked from about three seconds to five minutes. It actually detects motion, which is the entire point, and it does so reliably. Three wires, a Pi 5, and now you have motion sensing. I also appreciate the simple jumper for single trigger versus repeated trigger mode.Overall: The hardware is solid, the price is fantastic, and the performance is exactly what you expect from the classic HC SR501 design. The total lack of labeling or documentation drags the experience down in a way that is completely avoidable. Three stars from me. Add markings or a tiny info sheet and this would have been an easy five.
David B. –
works good for being cheap
only 1 issue, if using with a relay… make sure it is a 5V relay as opposed to a 12v H/L trigger relay, will not trigger high and low gets constant trigger. 5v relay solves this problem
Greg C. –
These sensors did exactly what they were supposed to do. they were easy to hook up to an Arduino and use in a sketch.
Alexander –
very pleased, arrived on time, everything works
Kindleのお客様 –
類似製品が多く迷ったのですが、価格もお手頃だったので購入しました。商品到着後、早速使ってみましたが問題なく動作しました。商品到着も早く、梱包も１個ずつ個包装されており、信頼できると思います。また利用させて頂きます。
Amazon Customer –
I haven’t used them yet sorry
MG Bear –
When I received the product I immediately connected the PIR. The output was 3.5 volts regardless of the input power. I assumed this was a defect in the product. NOT THE CASE. The product works great and the setting are very good. You can set up the output to stay on for 5 sec to 5 minutes. In my case, that is exactly what I needed