Interesting Chips and Sensors
3D Hall Effect Sensors The 3mm long TLE493D I2C interface 3D Hall Effect Sensor $1.97 The Infineon TLE493D is a bit of a cost breakthrough at under $2. Using 3 Hall Effect sensors in a single package, this chip can identify the position of a near magnetic field, that can for example make a longer lifespan replacement for precision continuous rotation potentiometers, that I used to see in aerospace surplus. There is an Arduino support library available for the I2C interface devices (be sure you know the version your working with ), there are 4 different part numbers for the TLE493D-W2B6 fast wake-up chip, whose only difference is their I2C address, allows 4 of the 6 pin sensors to be used on a single bus. • 3D magnetic flux density sensing of ±160 mT (1 miliTeslas = 10 gauss). • Programmable flux resolution down to 65 μT (typ.) (Earth is 35-70 μT). • X-Y angular measurement mode. • 12-bit data resolution. • Sample rate: up to 8.4 KHz. 3D-MS2GO Evaluat