HC-89 Interrupt Sensor
HC-89 Interrupt Sensor
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Looking to buy HC-89 Interrupt 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.
The HC-89 Interrupt Sensor is a compact, slotted optical switch module designed for precise object detection, position sensing, and counting applications. Featuring an infrared LED and phototransistor pair housed in a U-shaped gap, this sensor reliably detects when an object passes through or interrupts the optical beam - making it essential for encoder wheels, motor speed measurement, end-stop detection, and automated counting systems. Available now at Tech Depot India, Bengaluru with fast shipping and full technical support.
Specifications
| Sensor Type | Slotted Optical Interrupt (Transmissive Photointerrupter) |
| Model | HC-89 |
| Detection Method | Infrared LED + Phototransistor Pair |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital (High/Low) with onboard comparator |
| Onboard Comparator IC | LM393 (or equivalent) |
| Slot Width | ~5mm (gap for object interruption) |
| Detection Object | Opaque objects passing through the slot |
| Response Time | Fast (microsecond-level switching) |
| Output Indicator | Onboard LED for visual status feedback |
| Sensitivity Adjustment | Onboard potentiometer for threshold tuning |
| Interface Pins | VCC, GND, DO (Digital Output) |
| Mounting | Bolt holes for secure PCB or chassis mounting |
| Dimensions (approx.) | 32mm x 14mm x 7mm (module board) |
| Compatibility | Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, and all major microcontrollers |
| Origin | Original / Authentic Module |
Why Choose HC-89 Interrupt 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-89 Interrupt Sensor
- Slotted Optical Design: U-shaped gap with aligned IR emitter and detector provides clean, reliable beam-break detection without physical contact
- Onboard LM393 Comparator: Converts analog phototransistor output into a clean digital HIGH/LOW signal, eliminating noisy or ambiguous readings
- Adjustable Sensitivity: Built-in potentiometer lets you fine-tune the detection threshold to accommodate different object sizes and ambient conditions
- Visual Status LED: Onboard indicator LED lights up when the beam is interrupted, enabling quick testing and debugging without a microcontroller
- Wide Voltage Compatibility: Operates reliably at both 3.3V and 5V logic levels, ensuring seamless integration with Arduino, ESP32, Raspberry Pi, and more
- Microsecond Response: Extremely fast switching time makes it ideal for high-speed counting, RPM measurement, and real-time position feedback
- Simple 3-Pin Interface: Just VCC, GND, and Digital Output - connect directly to any microcontroller GPIO pin with no additional components required
- Non-Contact Detection: Optical sensing means zero mechanical wear, ensuring long operational life even in continuous-use applications
- Compact & Mountable: Small form factor with mounting holes allows easy integration into enclosures, robotic arms, conveyor frames, and 3D printer assemblies
- Plug-and-Play Simplicity: No complex wiring or external pull-up resistors needed; the onboard comparator circuit handles signal conditioning for you
- Versatile Application Range: From simple object counting to precision motor encoders, this single module serves dozens of use cases across hobby and industrial projects
- Tech Depot India & Repeatable: Optical beam-break detection delivers consistent results unaffected by object color, surface texture, or material (as long as the object is opaque)
- Excellent for Learning: Clear operating principle (light interruption) makes it an ideal teaching tool for understanding digital inputs, interrupts, and sensor interfacing
How It Works
The HC-89 Interrupt Sensor operates on the transmissive photointerrupter principle. One side of the U-shaped slot contains an infrared LED that continuously emits an IR beam. Directly opposite, a phototransistor
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-89 Interrupt Sensor today and start building your next project.
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