ADXL335BCPZ-1-1

The accelerometer, ADXL335BCPZ, is small, consuming, and accurate

Product specifications
• ADI AccelerometersAccelerometers/Speed Sensors/ Angular velocity sensorAD brand ADXL105AQCADXL150ADXL202ADXL203ADXL210ADXL103ADXL320ADXL250ADXL321ADXL321ADXL322ADXL335 angular velocityADXRS150ADXRS300ADXRS400 photoelectric speedADXL210ADXL103ADXL accelerometer, which can accurately measure the acceleration information of the measured objectto know its current state of motion, including position, velocity and acceleration; Accelerometers are widely used in a wide range of consumer electronics
• This design is based on ADI's ADXL320 two-axis accelerometer, which accurately measures the number of steps the wearer takes to complete the step counting function
• The pedometer module has the characteristics of small size, low power consumption and high accuracy. The entire pedometer is divided into two parts, the first part is the sensor module, consisting of the ADXL320 and a low power microcontroller, which completes the step counting function
• The second part is the motherboard controller module, which is composed of ADuC832, keyboard and LCD screen, which is mainly used for data transmission (I2C interface), and information display, and human-machine interface. The reason for dividing the system into sensor modules and motherboard modules is that product design engineers can easily port the sensor modules of this system to their products (such as mobile phones, MP3, PDA), thereby speeding up the research and development process
• The block diagram of the sensor module is shown in Figure 1, the two-axis acceleration information (analog) output of the ADXL320 is sampled by a low-power microcomputer, and the step value is obtained after calculation and processing, and the numerical information of step count and acceleration can be transmitted to the motherboard controller through the I2C bus. With a measurement range of ±5g, the ADXL320 fully meets the needs of changing acceleration when a person walks
• The power supply of the module is 3.3V, which is provided by the motherboard controller module, and the power supply of the ADXL320 is provided by a digital output port of the low-power microcomputer, so that the ADXL320 can be easily controlled to achieve the purpose of power saving