Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | DC 3.3V to 5V |
| Detection Distance | Up to 3 meters |
| Detection Angle | 100 degrees cone angle |
| Output Signal | 3.3V TTL Level (High/Low) |
| PCB Dimensions | 10mm x 19mm |
| Delay Time | 5 Seconds (Default) |
| Block Time | 2.5 Seconds |
| Operating Temperature | -20°C to +80°C |
| Pin Configuration | 3 Pins (VCC, OUT, GND) |
| Weight | 2 Grams |
Anonymous
Apr 07, 2026
Rating: 5/5
Perfect for Arduino Projects
Works flawlessly with my Uno. The footprint is very small which helps in compact designs. Detection is instant.
Anonymous
Apr 05, 2026
Rating: 5/5
Tiny but mighty
Great for compact builds where space is limited. Much smaller than the standard HC-SR501 module.
Anonymous
Mar 28, 2026
Rating: 4/5
Good sensitivity
Detects motion well but range is slightly less than expected in bright light conditions. Overall good value.
Anonymous
Mar 15, 2026
Rating: 5/5
Reliable detection
Used it for a security alarm prototype. No false positives so far. Very stable output signal.
Anonymous
Mar 13, 2026
Rating: 3/5
Need to check wiring
Works but I initially confused the pins. Documentation could be clearer for beginners. Once wired correctly it works.
Q: Can I use this sensor outdoors?
A: It is not waterproof, so you need to place it inside a protective enclosure for outdoor use.
Q: Can this run on 3.3V logic?
A: Yes, it operates comfortably between 3.3V and 5V, making it safe for most microcontrollers.
Q: How do I adjust the detection range?
A: The HC-SR505 has a fixed range unlike the HC-SR501. It is optimized for short to medium range detection.
Q: What is the maximum output current?
A: The output current is typically around 10mA, which is suitable for microcontroller inputs but not for driving motors directly.
Q: Is there a specific library needed for this?
A: It works with standard digital read functions, so no specific library is required for basic use.
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