MA702 Magnetic Angle Sensor Breakout R2

Breakout board for the MA702 high-resolution magnetic absolute angle sensor. A magnetic angle sensor senses the angle of the IC in relation to a diametrically magnetized magnet (included). Useful wherever contactless, accurate, and reliable angle measurements are desired. Application examples: Rotary knobs, BLDC/PMSM motors etc.

Connects directly to the Tinymovr R5.3 via 6-pin JST-GH cable. Supports 3.3-5V power supply via built-in low-noise LDO. Breaks out all sensor pins and a 3.3V output (max 100mA) to hacker-friendly, labeled 2.54mm pin headers. SPI and power supply pins are broken out on one side for easy cable management. The sensor IC is well decoupled via dual capacitors.

The board has ∅3mm mounting holes located diagonally at a 25mm diameter, for easy mounting directly on common brushless motor stators.

Monolithic Power Systems provides a comprehensive Arduino library for use with MA702 and other sensors, which is compatible with this breakout.

In the box

• 1x MA702 Breakout
• 1x 5mm DIA X 2.5mm H (0.236"DIA X 0.098"H) cylindrical, diametrically magnetized magnet.
• 1x JST-GH 300mm cable.

Resources

Arduino Library

Arduino + PlatformIO example (ready to run, provides readings on serial monitor)

Board schematic and drawing

Sensor datasheet