Accel 30 Click Board™

Product Code: MIKROE-5550

How Does The Accel 30 Click Board™ Work? The Accel 30 Click Board™ is based on the MC3635, a highly reliable digital triaxial acceleration sensor from MEMSIC. The MC3635 is highly configurable with a programmable acceleration range of ±2g, ±4g, ±8g, ±12g, or ±16g, and an internal sample rate from 14 to 1300 samples/second. It contains a 12-bit 32-sample FIFO with a programmable watermark and can be put into several operational modes, such as Sleep/Standby/Sniff/Swake/Cwake/Trig, depending upon the desired sensing application. In addition to all these features, the MC3635 is characterized by excellent temperature stability, low noise, and low power consumption. The Accel 30 Click Board™ allows using both I2C and SPI interfaces at a maximum frequency of 1MHz for I2C and 8MHz for SPI communication. Selection is made by positioning SMD jumpers marked COMM SEL to the appropriate position. All jumpers must be on the same side, or the Click board™ may become unresponsive. When the I2C interface is selected, the MC3635 allows the choice of its I2C slave address, using the ADDR SEL SMD jumper set to an appropriate position marked 0 and 1.

In addition to communication pins, this board also possesses an additional interrupt pin, routed to the INT pin on the mikroBUS™ socket, to signal MCU that an event, such as specific tap or sample acquisition conditions, has happened. The Accel 30 Click Board™ can only be operated 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 Acceleration,Motion Applications Can be used for consumer product motion sensing, user interface control, gaming, electronic compass tilt compensation, and more On-board modules MC3635 - digital triaxial acceleration sensor from MEMSIC Key Features Low power consumption, low noise, selectable full-scale acceleration, configurable host interface, high resolution, various operating modes, interrupt, programmable sample rate, and more Interface I2C,SPI Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the 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 NC NC 2 RST INT 15 INT Interrupt 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 SCL I2C Clock SPI Data IN SDI 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator JP1 ADDR SEL Right I2C Address Selection 0/1: Left position 0, Right position 1 JP2-JP4 COMM SEL Right Communication Interface Selection SPI/I2C: Left position SPI, Right position I2C ACCEL 30 CLICK ELECTRICAL SPECIFICATIONS Description Min Typ Max Unit Supply Voltage - 3.3 - V Acceleration Range ±2 - ±16 g Acceleration Resolution 8