If I understand correctly, I have done something similar once. What you need to do is learn what values define "level." Use the "pulseIn(pin,state)" command, where "pin" is the pin your accelerometer's x or y axis is on and "state" is the logic level (this is usually high, or "1"). After getting these values from using "Serial.println(pulseIn(pin,1))", use if then statements. I will give an example:
//this is to get the values of "level"
const int xPin = 2; // X output of the accelerometer
const int yPin = 3; // Y output of the accelerometer
void setup()
{
// initialize serial communications:
Serial.begin(9600);
// initialize the pins connected to the accelerometer
// as inputs:
pinMode(xPin, INPUT);
pinMode(yPin, INPUT);
}
void loop()
{
Serial.println(pulseIn(xPin,HIGH));
Serial.println(pulseIn(yPin,HIGH));
delay(500);
}
An example, with made-up numbers:
const int xPin = 2; // X output of the accelerometer
const int yPin = 3; // Y output of the accelerometer
const int red_led = 4; //connect red LED here
const int blue_led = 5; //Blue LED here
void setup()
{
// initialize serial communications:
Serial.begin(9600);
// initialize the pins connected to the accelerometer
// as inputs:
pinMode(xPin, INPUT);
pinMode(yPin, INPUT);
}
void loop()
{
if ((pulseIn(xPin,HIGH) > 10) and (pulseIn(xPin,HIGH) < 5000))
{ digitalWrite(red_led,HIGH); }
else
{digitalWrite(red_led,LOW);}
if ((pulseIn(yPin,HIGH) > 1000) and (pulseIn(yPin,HIGH) < 1200))
{ digitalWrite(blue_led,HIGH); }
else
{digitalWrite(blue_led,LOW);}
}