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The HC-SR501 PIR Sensor Module is a high-performance infrared motion detector compatible with Arduino and Raspberry Pi, featuring a wide operating voltage (4.5-20V), adjustable delay timing (0.5 to 200 seconds), and a detection range up to 21 feet. Perfect for automating lighting, alarms, and appliances in professional and home environments, it offers low power consumption and easy setup, making it a must-have for smart security and automation projects.
| ASIN | B07KBWVJMP |
| ASIN | B07KBWVJMP |
| Battery Description | battery not included |
| Best Sellers Rank | #19,742 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #35 in Motion Detectors |
| Brand | Stemedu |
| Color | Green |
| Compatible Devices | Arduino, Raspberry Pi |
| Customer Reviews | 4.4 4.4 out of 5 stars (337) |
| Customer reviews | 4.4 4.4 out of 5 stars (337) |
| Date First Available | 16 December 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 60 Grams |
| Item model number | 3216550596 |
| Manufacturer | Stemedu |
| Manufacturer | Stemedu |
| Maximum Range | 21 Feet |
| Mfr Part Number | ST0057X5 |
| Model Number | 3216550596 |
| Mounting Type | Wall Mount |
| Operating Temperature | 30 Degrees Celsius |
| Power Source | Battery Powered |
| Product Dimensions | 20 x 8 x 15 cm; 60 g |
| Temperature Range | 3E+1 Degrees Celsius |
| UPC | 747356632386 |
| Upper Temperature Rating | 30 Degrees Celsius |
G**.
These sensors did exactly what they were supposed to do. they were easy to hook up to an Arduino and use in a sketch.
A**R
very pleased, arrived on time, everything works
K**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。
P**N
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.
A**R
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.