AS5048A 14-Bit Magnetic Encoder Module PWM SPI Interface

AS5048A 14-Bit High-Precision Magnetic Encoder Module

The AS5048A Magnetic Encoder Module delivers outstanding 14-bit angular resolution for precise, contactless angle measurement. Built around the industry-trusted AS5048A chip, this compact PCB module communicates via both PWM and SPI interfaces, making it highly versatile for robotics, motor control, CNC systems, gimbal stabilizers, and any application that demands accurate rotational position sensing.

With a resolution of 16,384 steps per revolution (2¹⁴), this encoder provides smooth, reliable angular data with minimal noise. Its non-contact magnetic sensing principle means no physical wear over time, ensuring consistent long-term performance.

Key Features

• 14-Bit Resolution: 16,384 positions per full rotation for highly accurate angle measurement
• Dual Interface: Supports both PWM and SPI communication protocols for flexible integration
• Contactless Sensing: Magnetic induction technology eliminates mechanical wear
• Compact PCB Design: Measures just 8.2 × 6 cm (3.22 × 2.36 in) — easy to mount in tight spaces
• Stainless Steel Components: Durable build quality for reliable everyday operation
• Broad Compatibility: Ideal for Arduino, STM32, Raspberry Pi, and other microcontroller platforms

Specifications

Common Applications

• Brushless motor FOC (Field-Oriented Control) systems
• Robotics arm joint position feedback
• CNC machine tool angle sensing
• Gimbal and stabilizer control systems
• Industrial automation and servo motor positioning
• DIY electronics and maker projects

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Frequently Asked Questions

Q: What does the AS5048A Magnetic Encoder Module do?

A: The AS5048A Magnetic Encoder Module measures the absolute angular position of a rotating magnet with 14-bit (16,384-step) resolution. It communicates the angle data to a host microcontroller via SPI or PWM interface, making it ideal for motor control, robotics, and any application requiring precise rotational position feedback.

Q: What interfaces does the AS5048A encoder support?

A: This module supports both SPI (Serial Peripheral Interface) and PWM (Pulse Width Modulation) output interfaces, giving developers flexibility to integrate it with a wide range of microcontrollers including Arduino, STM32, ESP32, and Raspberry Pi.

Q: Is this encoder contactless, and why does that matter?

A: Yes — the AS5048A uses magnetic induction sensing, meaning it reads angle data from a diametrically magnetized magnet without physical contact. This eliminates mechanical wear, extending the module's operational lifespan and making it well-suited for high-cycle or continuous-rotation applications.

Q: What is included in the package?

A: Each order includes one complete AS5048A Magnetic Encoder Module set, ready to integrate into your project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.