MT6701 14-Bit Magnetic Angle Encoder Sensor Module
= High-Precision Differential Hall Sensor, Ideal Upgrade from AS5600 =
The MT6701 is a 14bit absolute magnetic angle encoder that uses differential Hall sensing to provide highly accurate, noncontact angle measurements. It serves as a powerful upgrade over the AS5600, offering superior resolution, higher speed, and richer output interfaces for Arduino and other MCU projects.
14Bit Core Resolution Four times the precision of the 12-bit AS5600 for smoother control
Differential Hall Technology - Excellent immunity to external magnetic field interference
Operating voltage is 3.3V to 5.0V with operating temperature -40°C to +125°C
To enable I2C mode, ensure the MODE pin is pulled HIGH (or left floating); keep the Z pin HIGH
While the MT6701 is highly robust, incorrect voltage levels may damage the sensor
= Technical Specifications =
| Parameter | Value |
|---|
| Core Resolution | 14-bit (absolute) |
| Output Resolution | 12-bit (Analog/PWM) |
| Accuracy (INL) | Typical ±1.0° |
| Communication | I2C, SSI, ABZ, UVW, Analog, PWM |
| Max Speed | 55,000 RPM |
| System Latency | <5 µs |
= Key Features =
UltraLow Latency <5 µs propagation delay for real-time control loops
HighSpeed Operation Supports up to 55,000 RPM for demanding applications
Flexible Output Interfaces - Choose from I2C, SSI, ABZ, UVW, PWM, or analog to fit your system
Integrated ZAxis Button Detects vertical press for "knob+button" functions
Robust Communication SSI interface with 6bit CRC for data integrity in noisy environments
Programmable Outputs ABZ up to 1024 PPR, UVW 116 pole pairs
== Applications ==
- Brushless DC (BLDC) motor control for gimbals and drones
- High-end HMI knobs and rotary encoders
- Robotics and servo motor feedback
- High-speed industrial automation
Direct Upgrade Path While AS5600 is a 12bit potentiometer replacement, MT6701 is a 14bit multiinterface encoder
Versatile and Powerful - One chip can replace potentiometers, optical encoders, and Hall sensors
√ Supported by Arduino IDE with dedicated libraries
√ Available in SOP8 (dropin replacement) and compact 3x3mm QFN packages
√ Supports high-speed SSI and I2C for easy integration
= Troubleshooting =
Sensor not responding:
- Verify the MODE pin is set correctly for your output interface (e.g., HIGH for I2C)
- Ensure the Z pin is pulled HIGH for I2C operation
- Check supply voltage and I2C pull-up resistors
Inconsistent readings:
- Confirm the magnet is correctly aligned and within the 20-100mT field range
- Check for magnetic interference from nearby motors or components