Sensitive to both North and South magnetic fields Hysteresis prevents output oscillation near switching point Can be used on either 3.3V or 5V systems
Bi Hall click is a bipolar Hall-effect switch, meaning it's sensitive to both magnetic poles. It produces a HIGH logic level output when exposed to a south-pole magnetic field, and a LOW logic level when exposed to a north-pole magnetic field. When you remove the magnetic field from its proximity, the logic level stays in the current state — i.e., the state produced by the last magnetic field to which the sensor was exposed.
This bipolar type of sensor is especially suited for applications where alternating north and south poles are used to ensure switching, e.g. to measure rotary speed by utilizing a ring magnet.
The board contains a Melexis US2882 bipolar Hall-effect switch and a 74LVC1T45 single-bit dual-supply transceiver. The US2882 IC integrates a Schmitt trigger with hysteresis, preventing oscillation near the switching point between alternating magnetic poles.
The Bi Hall click module communicates with your target board via the mikroBUS INT line. It is designed to use either a 3.3V or a 5V power supply, selectable via a solder jumper (in 3.3V position by default). This selection also determines logic level voltage.
Note: The picture shows the board with through-hole headers. The board now comes populated with male pin headers already soldered for your convenience. The board's user manual has yet to be updated to remove the soldering instructions.
Other Hall-effect Sensor mikroBUS Modules
- Uni Hall Click — Unipolar version (LOW when exposed to north pole; HIGH when not exposed to north pole)
- Lin Hall Click — Linear version (output increases as north pole field approaches; decreases by south pole)
- 3D Hall Click — 3D version (detects position of magnet in space)
mikroBUS Click Boards Overview Click boards plug directly into a mikroBUS socket. mikroBUS is a specially designed plug-and-play pinout standard. The sockets are found on Clicker boards, the Flip & Click Arduino/Python-compatible board, the Quail board, these mikromedia shields, the Microchip Curiosity board, and development systems from mikroElektronika (V7 systems and later).
You also can connect Click boards to many other popular platforms via these adapters:
- PC — Click USB Adapter (MIKROE-1433)
- Arduino — Arduino UNO click shield (MIKROE-1581) or Arduino Mega click shield (MIKROE-1900)
- Raspberry Pi — Pi click shield (MIKROE-1512) or Pi 2 click shield (MIKROE-1879)
- BeagleBone Black — BeagleBone click shield (MIKROE-1596) or mikroBUS Cape (MIKROE-1857)
- STM32F3 Discovery — STM32F3 Discovery Shield (MIKROE-1447)
- STM32F4 Discovery — STM32F4 Discovery Shield (MIKROE-1481)
- Stellaris LM4F120 LaunchPad / Tiva TM4C123G LaunchPad — Click BOOSTER PACK (MIKROE-1363)
- Freescale Freedom — FRDM-KL46Z click shield (MIKROE-1795) or FRDM-K64F click shield (MIKROE-1794)
In addition, it is royalty-free to add mikroBUS to your own designs. Visit the mikroBUS Category to see the full line of Click boards.
Bipolar Hall-effect Sensor Add-on Module Resources