HC-SR505 Mini PIR (Passive Infrared) Motion Sensor
HC-SR505 Mini PIR (Passive Infrared) Motion Sensor
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Looking to buy HC-SR505 Mini PIR (Passive Infrared) Motion Sensor at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Detect human motion effortlessly with the HC-SR505 Mini PIR Sensor - a compact, low-power passive infrared module ideal for automatic lighting, security systems, and IoT projects.
Specifications
| Module | HC-SR505 Mini PIR Motion Sensor |
| Sensor Type | Passive Infrared (PIR) - Pyroelectric |
| Operating Voltage | 4.5V - 20V DC |
| Quiescent Current | < 60uA (ultra-low power) |
| Output Signal | Digital (HIGH 3.3V when motion detected, LOW when idle) |
| Detection Range | Up to 3 meters |
| Detection Angle | Approximately 100 degrees cone |
| Output Delay Time | ~8 seconds (fixed, non-retriggerable) |
| Trigger Mode | Non-repeatable (single trigger - output goes LOW after delay, then re-arms) |
| Board Dimensions | ~10mm x 23mm (ultra-compact) |
| Operating Temperature | -20 degreesC to +80 degreesC |
| Output Drive | Can directly drive small loads or interface with microcontroller GPIO |
| Logic Compatibility | 3.3V / 5V microcontrollers (Arduino, ESP32, ESP8266, Raspberry Pi, STM32) |
| Origin | Original / Authentic |
Why Choose HC-SR505 Mini PIR (Passive Infrared) Motion Sensor?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of HC-SR505 Mini PIR (Passive Infrared) Motion Sensor
- Ultra-Compact Form Factor: At just 10mm x 23mm, the HC-SR505 is significantly smaller than the popular HC-SR501, making it perfect for space-constrained designs and wearable projects.
- Ultra-Low Power Consumption: Draws less than 60uA in standby, making it ideal for battery-powered and solar-powered applications where every microamp counts.
- Wide Voltage Range: Operates from 4.5V to 20V DC, providing flexibility to power directly from Arduino 5V pins, 9V batteries, 12V adapters, or other common supplies.
- Simple Digital Output: Provides a clean HIGH/LOW signal - no analog-to-digital conversion or complex signal processing needed. Connect directly to any microcontroller GPIO pin.
- 3-Meter Detection Range: Reliably detects human body infrared radiation within a 3-meter radius across a ~100 degrees field of view.
- Fixed 8-Second Delay: After detecting motion, output stays HIGH for approximately 8 seconds, then automatically returns to LOW and re-arms - no external timing components required.
- Non-Retriggerable Design: The single-trigger mode ensures predictable, debounced behavior without continuous re-triggering during sustained motion.
- No Adjustments Needed: Unlike the HC-SR501, there are no potentiometers to adjust - the sensor works reliably right out of the box with fixed sensitivity and delay.
- Wide Temperature Range: Functions from -20 degreesC to +80 degreesC, suitable for both indoor and sheltered outdoor installations.
- 3-Pin Interface: Simple VCC, GND, and OUT pinout for quick breadboard prototyping or PCB integration.
HC-SR505 vs HC-SR501 - Quick Comparison
| Feature | HC-SR505 | HC-SR501 |
| Size | ~10 x 23mm (mini) | ~32 x 24mm (standard) |
| Detection Range | Up to 3m | Up to 7m (adjustable) |
| Delay Time | ~8 seconds (fixed) | 3s - 300s (adjustable) |
| Sensitivity | Fixed | Adjustable via potentiometer |
| Trigger Mode | Non-retriggerable only | Retriggerable & non-retriggerable |
| Standby Current | < 60uA | < 65uA |
| Best For | Compact, simple, low-power builds | Adjustable, long-range detection |
How It Works
The HC-SR505 contains a pyroelectric sensor element behind a small Fresnel lens dome. All warm-blooded beings (humans, animals) emit infrared radiation. When a person moves within the sensor's field of view, the changing IR pattern causes the pyroelectric element to generate a small voltage change. The onboard BISS0001 signal processing IC amplifies this signal
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your HC-SR505 Mini PIR (Passive Infrared) Motion Sensor today and start building your next project.
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