Compass Bricklet Tinkerforge Compass Bricklet features a 3-axis ±8 Gauss MMC5883MA magnetic sensor. This Bricklet can measure the magnetic flux density for all three axes as well as the heading with a resolution of 0.1° and accuracy up to 1°. The Compass Bricklet is capable of measuring magnetic flux density with 0.01µT resolution. The update rate is configurable in this Bricklet and can go as high as 600Hz.