The TLV493D 3-axis magnetometer is a great little sensor for detecting magnets in 3D. In fact, the manufacturer Infineon suggests it could be used to make a joystick! You could also use it for other cool things like detecting objects with magnets attached, like the lid of a box, or maybe a statue that unlocks your secret lair when placed on your mantle?
The TLD493D excels at measuring nearby magnetic fields in three dimensions. It's not going to make a good compass, it's not sensitive enough to pick up the Earth's magnetic field, but you can use it to track the movement of nearby magnets in three dimensions.
Here are a few specs:
- Digital output via 2-wire based standard I2C interface up to 1 MBit/sec
- 12-bit data resolution for each measurement direction
- Bx, By, and Bz linear field measurement up to +130 mT
- Excellent matching of X/Y measurement for accurate angle sensing
As we are wont to do, we've made the TLV easy to use by putting it on a breakout PCB along with the circuitry to support it. A voltage regulator and logic level shifting combine to make it usable with a range of microcontrollers with either 3.3V or 5V logic levels. We even give you a pin for you to use the excess 3.3V juice not needed by the TLV493D.
Product Dimensions: 25.4mm x 17.8mm x 4.6mm / 1.0" x 0.7" x 0.2"
Product Weight: 1.8g / 0.1oz