This 2-DOF Pan-Tilt HAT (Horizontal/Vertical Motion) plugs directly into Raspberry Pi's 40-pin GPIO, enabling precise camera positioning with minimal wiring. Using an I²C interface, it controls pan-tilt movement and ambient light detection via just 2 signal lines. The onboard PCA9685 chip generates 12-bit PWM signals for smooth servo control, while the TSL25911FN light sensor mimics human-eye light response to optimize camera performance in varying lighting. Includes a dedicated acrylic mount for securing Raspberry Pi cameras.
Key Features
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Plug-and-Play Design: Direct GPIO insertion + stackable headers preserve GPIO access for other peripherals
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Precision Control: 12-bit PWM resolution (vs. standard 8-bit) enables 0.5° servo positioning accuracy
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Ambient Adaptation: TSL25911FN sensor (12-bit ADC) auto-adjusts camera exposure for consistent image quality in low light or glare
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Voltage Flexibility: 3.3V/5V logic compatibility via onboard level-shifting circuitry
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Robust Integration: Compatible with Raspberry Pi Camera V1/V2/HQ and Arducam IMX219/IMX477 modules
Specifications
| Parameter | Details |
|---|---|
| Model | Pan-Tilt HAT (SKU: FIT0731) |
| Control Chip | PCA9685 (16-channel PWM driver) |
| Light Sensor | TSL25911FN (0–40,000 lux detection) |
| PWM Resolution | 12-bit (4096 steps) |
| Communication | I²C (Addresses: PCA9685=0x40, TSL25911FN=0x29) |
| Operating Voltage | 3.3V/5V |
| Dimensions | 56.6 × 65mm (2.23 × 2.56") |
| Servo Support | Two SG90/MG90-type servos (not included) |
| Mount Compatibility | Standard M2 screw holes for cameras/sensors |
Applications
- Robotics: Object tracking and SLAM navigation on Jetson Nano
- Security: Auto-follow intruders using OpenCV-based face detection
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Industrial Automation: Quality inspection with high-precision camera alignment
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Education: ROS/Arduino projects for pan-tilt mechanics and sensor integration
Package Contents
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Pan-Tilt HAT ×1 (unassembled)
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Acrylic Camera Mount ×1
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M2 Screws/Nuts ×5
Documents
Compatibility Notes
| Supported | Unsupported |
|---|---|
| Raspberry Pi 3B+ | Raspberry Pi 400 |
| Raspberry Pi 4B (all RAM) | Raspberry Pi Pico |
| Jetson Nano | Compute Module 4 (CM4) |
Advantages
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Simplified Wiring:
I²C control reduces cable clutter vs. direct GPIO-PWM setups
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Industrial-Grade Durability:
Anodized aluminum servos tolerate -20°C to 85°C environments
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Plug-and-Play Setup:
Pre-flashed firmware + Python/Arduino libraries enable operation in <10 minutes
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Expandable:
Stackable headers support adding Ultrasonic sensors (obstacle avoidance) or Coral TPU accelerators (real-time AI tracking)