MT6835 Magnetic Encoder Module PWM/SPI Brushless Motor 21BIT Encoder with 4x2mm Magnet

The MT6835 module operates from 3.3V to 5.0V DC. This wide range allows direct compatibility with both 5V systems like Arduino Uno and 3.3V logic systems like Raspberry Pi or ESP32 without requiring a level shifter.

The module provides two primary interface options: a digital SPI interface for direct microcontroller communication and a configurable PWM output. The SPI interface provides the full 21-bit absolute angle data, while the PWM output offers a duty cycle proportional to the angle, useful for simpler analog-style reading.

Yes, the MT6835 is designed as a functional replacement for AS5048-series magnetic encoders. It offers similar SPI communication, PWM output, and magnet-based sensing principle. However, always verify pinout compatibility and command structure with your specific driver firmware before integration.

The module is designed for use with a 4mm diameter by 2mm thick axially magnetized disc magnet. The magnet must be centered on the axis of rotation and positioned directly above (or below) the sensor IC on the PCB with an optimal air gap typically between 0.5mm and 3mm for reliable operation.

The MT6835 supports rotational speeds up to 120,000 RPM. Its system delay is exceptionally low, ranging from 2 microseconds (µs) to 10 µs, making it suitable for high-speed motor control applications and fast-response servo loops where minimal latency is critical.