Hello
My Led's are connected to adafruit L3GD20H gyroscope and i have successfully turned on the LED's which are working. However i want my lights to flash when it is on and have trouble making it flash! does anyone know how to make it blink? i need the indicator part which is pin 9 and 10 to flash!!
Help needed asap!!!!!
i have attached my whole file below 
thanks!
#include <Wire.h>
#include <Adafruit_L3GD20_U.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_ADXL345_U.h>
bool brakeON = false;
/* Assign a unique ID to this sensor at the same time */
Adafruit_L3GD20_Unified gyro = Adafruit_L3GD20_Unified(20);
Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified(12345);
void displaySensorDetails(void)
{
sensor_t sensor;
gyro.getSensor(&sensor);
Serial.println("------------------------------------");
Serial.print ("Sensor: "); Serial.println(sensor.name);
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" rad/s");
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" rad/s");
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" rad/s");
Serial.println("------------------------------------");
Serial.println("");
accel.getSensor(&sensor);
Serial.println("------------------------------------");
Serial.print ("Sensor: "); Serial.println(sensor.name);
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" m/s^2");
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" m/s^2");
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" m/s^2");
Serial.println("------------------------------------");
Serial.println("");
delay(100);
}
void displayDataRate(void)
{
Serial.print ("Data Rate: ");
switch (accel.getDataRate())
{
case ADXL345_DATARATE_3200_HZ:
Serial.print ("3200 ");
break;
case ADXL345_DATARATE_1600_HZ:
Serial.print ("1600 ");
break;
case ADXL345_DATARATE_800_HZ:
Serial.print ("800 ");
break;
case ADXL345_DATARATE_400_HZ:
Serial.print ("400 ");
break;
case ADXL345_DATARATE_200_HZ:
Serial.print ("200 ");
break;
case ADXL345_DATARATE_100_HZ:
Serial.print ("100 ");
break;
case ADXL345_DATARATE_50_HZ:
Serial.print ("50 ");
break;
case ADXL345_DATARATE_25_HZ:
Serial.print ("25 ");
break;
case ADXL345_DATARATE_12_5_HZ:
Serial.print ("12.5 ");
break;
case ADXL345_DATARATE_6_25HZ:
Serial.print ("6.25 ");
break;
case ADXL345_DATARATE_3_13_HZ:
Serial.print ("3.13 ");
break;
case ADXL345_DATARATE_1_56_HZ:
Serial.print ("1.56 ");
break;
case ADXL345_DATARATE_0_78_HZ:
Serial.print ("0.78 ");
break;
case ADXL345_DATARATE_0_39_HZ:
Serial.print ("0.39 ");
break;
case ADXL345_DATARATE_0_20_HZ:
Serial.print ("0.20 ");
break;
case ADXL345_DATARATE_0_10_HZ:
Serial.print ("0.10 ");
break;
default:
Serial.print ("???? ");
break;
}
Serial.println(" Hz");
}
void displayRange(void)
{
Serial.print ("Range: +/- ");
switch (accel.getRange())
{
case ADXL345_RANGE_16_G:
Serial.print ("16 ");
break;
case ADXL345_RANGE_8_G:
Serial.print ("8 ");
break;
case ADXL345_RANGE_4_G:
Serial.print ("4 ");
break;
case ADXL345_RANGE_2_G:
Serial.print ("2 ");
break;
default:
Serial.print ("?? ");
break;
}
Serial.println(" g");
}
void setup(void)
{
Serial.begin(9600);
Serial.println("Gyroscope Test"); Serial.println("");
/* Enable auto-ranging */
gyro.enableAutoRange(true);
/* Initialise the sensor */
if (!gyro.begin())
{
/* There was a problem detecting the L3GD20 ... check your connections */
Serial.println("Ooops, no L3GD20 detected ... Check your wiring!");
while (1);
}
/* Display some basic information on this sensor */
displaySensorDetails();
initializeLEDsSimple();
Serial.println("Accelerometer Test"); Serial.println("");
/* Initialise the sensor */
if (!accel.begin())
{
/* There was a problem detecting the ADXL345 ... check your connections */
Serial.println("Ooops, no ADXL345 detected ... Check your wiring!");
while (1);
}
/* Set the range to whatever is appropriate for your project */
accel.setRange(ADXL345_RANGE_16_G);
// displaySetRange(ADXL345_RANGE_8_G);
// displaySetRange(ADXL345_RANGE_4_G);
// displaySetRange(ADXL345_RANGE_2_G);
/* Display some basic information on this sensor */
displaySensorDetails();
/* Display additional settings (outside the scope of sensor_t) */
displayDataRate();
displayRange();
Serial.println("");
}
void loop(void)
{
/* Get a new sensor event */
sensors_event_t event;
gyro.getEvent(&event);
/* Display the results (speed is measured in rad/s) */
Serial.print("X: "); Serial.print(event.gyro.x); Serial.print(" ");
Serial.print("Y: "); Serial.print(event.gyro.y); Serial.print(" ");
Serial.print("Z: ") ; Serial.print(event.gyro.z); Serial.print(" ");
Serial.println("deg/s ");
indicatorLight(event.gyro.y, event.gyro.z, event.gyro.x);
/* Get a new sensor event */
accel.getEvent(&event);
/* Display the results (acceleration is measured in m/s^2) */
Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");
Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");
Serial.print("Z: "); Serial.print(event.acceleration.z + 9.1); Serial.print(" "); Serial.println("m/s^2 ");
Serial.println(" ");
brakeLight(event.acceleration.x);
delay(100);
}
void initializeLEDsSimple()
{
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
}
void brakeLight(float x)
{
if (x <= -9 and x >= -11) {
x = 0;
}
if (x <= -0.5) {
brakeON = true ;
}
if (x > 0.5) {
brakeON = false;
}
if (brakeON)
{
digitalWrite(11, HIGH);
delay (50);
Serial.println("Brake ON");
}
else
{
digitalWrite(11, LOW);
delay (50);
Serial.println("Brake OFF");
}
}
void indicatorLight(float y, float z, float x)
{
if (y > 1.2 or z < -0.5)
{
digitalWrite(9, HIGH);
delay(500);
digitalWrite(10, LOW);
Serial.println("indicator ON");
Serial.println("Rotating");
}
else if (y < -1.2 or z > 0.5)
{
digitalWrite(9, LOW);
digitalWrite(10, HIGH);
delay(500);
Serial.println("indicator ON");
Serial.println("Rotating");
}
else
{
digitalWrite(9, LOW);
digitalWrite(10, LOW);
}
}