Make an acceleromer control a servo.

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The ADXL330 has voltage outputs so you connect it to an analog input.

#include <Servo.h>
const int servoPin = 9;
const in ADXLpin = A0;

Servo myServo;

void setup() {myServo.attach(servoPin);}

void loop()
    {
    int accel = analogRead(ADXLpin);
    int angle = map(accel, 0, 1023, 0, 180);
    myServo.write(angle);
    }