What is it?

Breakout board for the MA702 high resolution magnetic absolute angle sensor by Monolithic Power Systems (MPS). 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.

The MA702 sensor supports variable filter constants, providing a tradeoff of angular resolution vs. sensor responsiveness.

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

Why did you make it?

We made this as an alternative for the official test board by MPS, which is clunky and requires 3.3V supply. Our board is more hacker-friendly and suitable for mounting behind a motor.

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 6-pin JST-GH cable