Angle 6 Click Board™

Product Code: MIKROE-5282

How Does The Angle 6 Click Board™ Work? The Angle 6 Click Board™ is based on the MAQ470GQE, 12-bit PWM output angle sensor that detects the absolute angular position of a permanent magnet, typically a diametrically magnetised cylinder on a rotating shaft from Monolithic Power Systems. It allows users to read angle position information and detect the speed or direction of magnet rotation. Fast data acquisition and processing provide accurate angle measurement at rates from 0 to 60,000rpm. It supports many magnetic field strengths and spatial configurations, with both end-of-shaft and off-axis (side-shaft mounting), supported configurations. The MAQ470GQE features magnetic field strength detection with programmable thresholds to allow sensing of the magnet position relative to the sensor to create functions such as sensing axial movements or diagnostics. It can operate over a wide magnetic field range from 30mT to 150mT (60mT typical) with 5mT accuracy. Eight magnetic field thresholds are programmable in approximate 15mT steps allowing detection of changes in the distance between the magnet and the sensor.

On-chip non-volatile memory provides storage for configuration parameters, including the reference zero angle position and magnetic field detection thresholds. The magnetic field is detected with integrated Hall devices located in the sensors' centre. The angle is measured using the Spinaxis™ method, based on phase detection generating a sinusoidal signal with a phase representing the angle of the magnetic field. The angle is then obtained by a time-to-digital converter, representing output from the front-end to the digital conditioning block, which measures the time between the zero-crossing of the sinusoidal signal and the edge of a constant waveform. This output delivers a digital number proportional to the angle of the magnetic field at the rate of 1MHz in a straightforward and open-loop manner. The Angle 6 Click Board™ communicates with MCU using the standard SPI serial interface for angle reading and register programming, which supports SPI Mode 0 and 3 and operates at clock rates up to 25 MHz. It also has the magnetic flags used to indicate when the sensor position's magnetic field is out of range, defined by the lower and upper magnetic field thresholds, routed on the RST and INT pins of the mikroBUS™ socket labelled as MGH and MGL. The Angle 6 Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development. SPECIFICATIONS Type Magnetic Applications Can be used as a highly reliable and contactless method to measure various applications' angles, position, and speed On-board modules MAQ470GQE - 12-bit contactless angle sensor with PWM output from Monolithic Power Systems Key Features Fast data acquisition, SPI serial interface, magnetic field strength detection, contactless sensing for long life, supported both end-of-shaft and off-axis, and many more Interface PWM,SPI Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Supply Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the Angle 6 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 PWM PWM Signal Magnetic Field Strength Detection (HIGH) MGH 2 RST INT 15 MGL Magnetic Field Strength Detection (LOW) SPI Chip Select CS 3 CS RX 14 NC SPI Clock SCK 4 SCK TX 13 NC SPI Data OUT SDO 5 MISO SCL 12 NC SPI Data IN SDI 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8