Acceleration Monitor using ADXL202 and AVR


Posted on Feb 7, 2014

The schematic show that the AccelR8 only uses 3 IC`s. An AVR 8515 microcontroller do the calculation work and controls the other circuits. An MAX603 controls voltage and power-on/power-off. And the chip that makes it all possible, the ADXL202 from Analog Devices measures the acceleration. This chip is a small wonder. It uses a tiny micro machined


Acceleration Monitor using ADXL202 and AVR
Click here to download the full size of the above Circuit.

polysilicon structure on the silicon wafer. The structure is part of a capacitor, so deflection of the structure (by acceleration) can be measured. In this case, we only use one of the axes, and the ADXL202 outputs this data as a variable duty-cycle squarewave. The 8515 calculates the acceleration by measuring the pulsewidth/period relationship. The acceleration is then used in further calculations, and the resulting data is show on the display.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    voltage Serial and parallel circuits and power
    Extensible Multiple Device Programmer 4 Base
    isolated mains power monitoring arduino
    Mcu Reset And Oscillator Circuits Applicationnote
    2400 MHz RF amplifier circuit diagram using PM2107
    TDA1514 40 Watt Audio Amplifier Circuit
    10 GHZ Transverter
    Rapid control circuit of a stepping motor
    DC motor armature resistance in series to start debugging circuit 2
    Electronic Peacock by the CD4017 NE555 circuit diagram consisting of the opening screen



    Top