Clean-up examples

- do not call constructor in setup()
- format using Arduino IDE v2
- rename example code to new name scheme:
  - `test_` prefix only for sensor testing code not for usage examples
  - sensor name prefix if example refers to 3rd party sensor
  - drop `lm_` prefix

examples/test_lm_ir_ball_follower/test_lm_ir_ball_follower.ino → examples/ht_ir_seeker_ball_follower/ht_ir_seeker_ball_follower.ino

@@ -6,12 +6,11 @@
 #include <LmMeHtIrSeekerV2.h>
 #include <LmEncoderOnBoardMotor.h>
 
-MeHtIrSeekerV2 seeker;
+MeHtIrSeekerV2 seeker = MeHtIrSeekerV2(PORT_6, MeHtIrSeekerV2::AC);
 EncoderOnBoardMotor motor_l = EncoderOnBoardMotor(SLOT2);
 EncoderOnBoardMotor motor_r = EncoderOnBoardMotor(SLOT1);
 
 void setup() {
-  seeker = MeHtIrSeekerV2(PORT_6, MeHtIrSeekerV2::AC);
 }
 
 void loop() {

examples/rgb_led_ring/rgb_led_ring.ino

@@ -3,21 +3,19 @@
 MeRGBLed led_ring = MeRGBLed(0, 12);
 int i = 0;
 
-void setup()
-{
-	led_ring.setpin(44);
+void setup() {
+  led_ring.setpin(44);
 }
 
-void loop()
-{
-	int led;
-	/* 0 <= led <= 11 */
-	led = (i % 12);
-	/* 1 <= led <= 12 */
-	led++;
-	led_ring.setColor(0, 0, 0, 0);
-	led_ring.setColor(led, 255, 0, 0);
-	led_ring.show();
-	delay(100);
-	i++;
+void loop() {
+  int led;
+  /* 0 <= led <= 11 */
+  led = (i % 12);
+  /* 1 <= led <= 12 */
+  led++;
+  led_ring.setColor(0, 0, 0, 0);
+  led_ring.setColor(led, 255, 0, 0);
+  led_ring.show();
+  delay(100);
+  i++;
 }

examples/rgb_led_ring2/rgb_led_ring2.ino

@@ -2,29 +2,24 @@
 
 MeRGBLed led_ring = MeRGBLed(0, 12);
 
-void setup()
-{
-	led_ring.setpin(44);
+void setup() {
+  led_ring.setpin(44);
 }
 
-uint8_t dim(double n_led, double led)
-{
-	return 255. * (-n_led * pow(led, 2) + pow(n_led,
-			2) * led) / (-n_led * pow(n_led / 2., 2) + pow(n_led, 2) * n_led / 2.);
+uint8_t dim(double n_led, double led) {
+  return 255. * (-n_led * pow(led, 2) + pow(n_led, 2) * led) / (-n_led * pow(n_led / 2., 2) + pow(n_led, 2) * n_led / 2.);
 }
 
-void loop()
-{
-	int n_led = 12;
+void loop() {
+  int n_led = 12;
 
-	for (int i = 0; i < 12; i++) {
-		led_ring.setColor(0, 0, 0, 0) ;
+  for (int i = 0; i < 12; i++) {
+    led_ring.setColor(0, 0, 0, 0);
 
-		for (int j = 0; j < n_led; j++)
-			led_ring.setColor(((i + j) % 12) + 1, dim(n_led, j), dim(n_led,
-					  (j + n_led / 2) % n_led), dim(n_led, (j + n_led / 4) % n_led)) ;
+    for (int j = 0; j < n_led; j++)
+      led_ring.setColor(((i + j) % 12) + 1, dim(n_led, j), dim(n_led, (j + n_led / 2) % n_led), dim(n_led, (j + n_led / 4) % n_led));
 
-		led_ring.show();
-		delay(100);
-	}
+    led_ring.show();
+    delay(100);
+  }
 }

examples/simple_gyro_led/simple_gyro_led.ino

@@ -17,35 +17,33 @@ double x, y, z;
 /* store LED color intensity values */
 int r, g, b;
 
-void setup()
-{
-	/* setup and start I2C communication */
-	gyro.begin();
-	/* set Arduino pin where LED ring is connected to */
-	led_ring.setpin(44);
+void setup() {
+  /* setup and start I2C communication */
+  gyro.begin();
+  /* set Arduino pin where LED ring is connected to */
+  led_ring.setpin(44);
 }
 
-void loop()
-{
-	/* read new set of values from sensor */
-	gyro.update();
+void loop() {
+  /* read new set of values from sensor */
+  gyro.update();
 
-	/* get x axis value : -90 to 90 degree */
-	x = gyro.getAngleX();
-	/* get y axis value : -90 to 90 degree */
-	y = gyro.getAngleY();
-	/* get z axis value : -180 to 180 degree */
-	z = gyro.getAngleZ();
+  /* get x axis value : -90 to 90 degree */
+  x = gyro.getAngleX();
+  /* get y axis value : -90 to 90 degree */
+  y = gyro.getAngleY();
+  /* get z axis value : -180 to 180 degree */
+  z = gyro.getAngleZ();
 
-	/* convert x value to R value: 0 to 255 */
-	r = ((x + 90) / 180) * 255;
-	/* convert y value to G value: 0 to 255 */
-	g = ((y + 90) / 180) * 255;
-	/* convert z value to B value: 0 to 255 */
-	b = ((z + 180) / 360) * 255;
+  /* convert x value to R value: 0 to 255 */
+  r = ((x + 90) / 180) * 255;
+  /* convert y value to G value: 0 to 255 */
+  g = ((y + 90) / 180) * 255;
+  /* convert z value to B value: 0 to 255 */
+  b = ((z + 180) / 360) * 255;
 
-	/* set RGB color values */
-	led_ring.setColor(0, r, g, b) ;
-	/* apply RGB color values */
-	led_ring.show();
+  /* set RGB color values */
+  led_ring.setColor(0, r, g, b);
+  /* apply RGB color values */
+  led_ring.show();
 }

examples/test_lm_me_ht_ir_seeker_v2/test_lm_me_ht_ir_seeker_v2.ino → examples/test_me_ht_ir_seeker_v2/test_me_ht_ir_seeker_v2.ino

@@ -1,7 +1,7 @@
 #include <MeAuriga.h>
 #include <LmMeHtIrSeekerV2.h>
 
-MeHtIrSeekerV2 seeker;
+MeHtIrSeekerV2 seeker = MeHtIrSeekerV2(PORT_6, MeHtIrSeekerV2::AC);
 
 void getDeviceInfo(void) {
   char fw_str[9] = { 0 };
@@ -31,7 +31,6 @@ void getDeviceInfo(void) {
 }
 
 void setup() {
-  seeker = MeHtIrSeekerV2(PORT_7, MeHtIrSeekerV2::AC);
   Serial.begin(9600);
   /* wait untill the sensor is fully powered */
   delay(1);