SKU: SENS-1631
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STMicroelectronics STHS34PF80 Human Body Sensing Module - Digital Output

₹929.00 (Inclusive of all taxes)
Out of Stock

The STHS34PF80 is a capacitive human body sensing module designed for occupancy detection and motion sensing applications. Operating from 3V to 5V, it provides a digital high/low output signal compatible with microcontrollers like Arduino, Raspberry Pi, and ESP32 for automated lighting, security, and energy management systems.

Features

  • Capacitive sensing principle for non-contact human body detection.
  • Digital output signal simplifies integration with microcontrollers and logic circuits.
  • Low power operation from a 3V to 5V DC power supply.
  • Compact module form factor for easy embedding into end products.
  • Ideal for occupancy-based automation in lighting, HVAC, and security systems.

Out of stock

Description

The STHS34PF80 module utilizes a capacitive sensing principle to detect the presence or proximity of a human body by monitoring changes in the local electromagnetic field. This non-contact method offers reliable detection without physical interaction, making it suitable for touchless control and presence-aware applications.

Designed for low-power operation, the module outputs a clean digital signal that transitions between logic high and low states upon detection. This simplifies interface requirements with host systems, including Arduino, Raspberry Pi, ESP32, and industrial PLCs, enabling immediate integration into automated control loops for energy savings and enhanced user interaction.

Key Features

  • Capacitive-based human body proximity detection.
  • Digital TTL-level output for direct microcontroller interfacing.
  • Wide operating voltage range of 3V to 5V DC.
  • Compact and optimized module design for space-constrained installations.
  • Low power consumption suitable for battery-powered or always-on applications.
  • Stable performance across typical indoor environmental conditions.

Applications

  • Occupancy detection for automatic lighting control in offices and homes.
  • Presence sensing for security system activation and intrusion alerts.
  • Touchless activation for public restroom fixtures and sanitization systems.
  • Energy management in HVAC systems based on room occupancy.
  • Proximity-based interactive displays and kiosks.

Technical Specifications

Manufacturer Part NumberSTHS34PF80
Sensor TypeCapacitive Proximity (Human Body)
Detection Range0 - 5 meters (environment dependent)
Output SignalDigital (High/Low)
Operating Voltage3V - 5V DC
Interface CompatibilityMicrocontroller Digital I/O (Arduino, Raspberry Pi, ESP32)
Item TypeSensor Module
Shipping Weight0.015 kg
Shipping Dimensions5 × 5 × 5 cm

Frequently Asked Questions

What is the operating voltage range for the STHS34PF80 module?

The STHS34PF80 module operates from a 3V to 5V DC power supply. It is compatible with common 3.3V and 5V logic systems found on development boards like Arduino, ESP32, and Raspberry Pi. Ensure your power source is stable within this range for reliable sensor performance.

How do I interface the STHS34PF80 with an Arduino?

Connect the module's VCC and GND pins to the Arduino's 5V (or 3.3V) and GND pins, respectively. Connect the digital output pin of the sensor to any digital input pin on the Arduino. The output will be a logic HIGH or LOW signal based on human presence detection, which can be read using the `digitalRead()` function.

What factors can affect the detection range of this capacitive sensor?

The specified 0-5 meter range is typical and can be influenced by environmental factors such as humidity, nearby conductive objects, and electromagnetic interference. The sensor's sensitivity is also tuned for human body capacitance; detection distance may vary with body size, movement, and the sensor's installation orientation.

Can this sensor differentiate between human presence and other moving objects?

The STHS34PF80 is specifically designed to detect the unique capacitive signature of a human body, offering a degree of selectivity against smaller pets or inanimate objects. However, its primary function is presence/proximity detection, not identification, so large conductive objects in close proximity may also trigger the sensor.

Package Includes

  • 1 x STHS34PF80 Human Body Sensing Module

Additional Information

Weight 0.015 kg
Dimensions 5 × 5 × 5 cm