Accelerometers (pcbs ,e.t.c)

[kokos]

 ADXL202E pcb boards Eagle & Gif format

http://eis.comp.lancs.ac.uk/mat/archive.htm

Posted on: December 11, 2007, 09:04:33 21:04 - Automerged
.... and a link on how to solder this little thing 

http://www.machinegrid.com/content/view/59/114/

[nikhilele]

this can be used to sense direction also..

[Orcino Borges]

 Hi, i used this Accelerometer for a turn off motor a car with a crash.

            My english is bad, sorry.

[prog]

And i used this Accelerometer for a car motion sensor.
This is simple driver for read ADXL202E acceleration.

long T1x, T1y, T2;

short adxl_read(void)
{
    long Tc,Td;
   
    TMR1 = 0;
    TMR1IF = 0;

    while( c_port.xout && !TMR1IF); // X axis
    while(!c_port.xout && !TMR1IF);
    TMR1 = 0;
    while( c_port.xout && !TMR1IF);
    T1x = TMR1;

    while( c_port.yout && !TMR1IF); // Y axis
    while(!c_port.yout && !TMR1IF);
    Tc = TMR1;
    while( c_port.yout && !TMR1IF);
    Td = TMR1;

    T1y = Td - Tc;
    T2 = Td - (T1y + T1x) / 2;
   
    return TMR1IF;
}

In the enclosed file the simple schematic.