3축 가속도 센서 -ADXL373
(ACCEL 27 CLICK)
개요
- 본 제품은 3축 가속도 센서 -ADXL373입니다.
- ADXL373칩을 탑재하고 있으며, 3축 ±400g 가속도를 측정범위를 가지고 있습니다.
- SPI, I2C 인터페이스를 지원합니다.
특징
-
HOW DOES IT WORK?
Accel 27 Click is based on the ADXL373, a complete three-axis ±400g acceleration measurement system from Analog Devices, operating at extremely low power levels. Built-in digital logic enables autonomous operation and implements functions that enhance system-level power savings. It offers 12-bit output data at 200mg/LSB scale factor, where acceleration is reported digitally through a configurable and selectable serial interface. The ADXL373 has three operating modes. Measurement mode is used for continuous, broad bandwidth sensing. The wake-up mode is used for limited bandwidth low g activity detection, and the instant-on mode is used for low power impact detection. Measurement can be suspended entirely by placing the ADXL373 in Standby mode.
As mentioned, the acceleration data is accessed through I2C or SPI interface with a maximum frequency of 3.4MHz for I2C and 10MHz for SPI communication. The selection is made by positioning SMD jumpers labeled COMM SEL in an appropriate position. Note that all the jumpers' positions must be on the same side, or the Click board™ may become unresponsive. While the I2C interface is selected, the ADXL373 allows choosing the least significant bit (LSB) of its I2C slave address using the SMD jumper labeled ADDR SEL.
This board also possesses two interrupts, IT1 and IT2, routed to, where by default, the INT and AN pins stand on the mikroBUS™ socket, entirely programmed by the user through a serial interface. They signal MCU that a motion event has been sensed.
This 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 Motion Applications Can be used for motion-activated functions, impact, and shock detection, medical IoT applications, and more On-board modules ADXL373 - three-axis MEMS accelerometer from Analog Devices Key Features ±400g measurement range, user selectable bandwidth with 4-pole antialiasing filter, selectable oversampling ratio, low power consumption, built-in features for system power savings, selectable interface, event monitoring, and more Interface I2C,SPI Compatibility mikroBUS Input Voltage 3.3V