Merge pull request #69 from photodude/patch-1

Correct Servo frequency to 50 Hz

examples/servo/servo.ino

@@ -35,7 +35,7 @@ Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
 #define SERVOMAX  600 // This is the 'maximum' pulse length count (out of 4096)
 #define USMIN  600 // This is the rounded 'minimum' microsecond length based on the minimum pulse of 150
 #define USMAX  2400 // This is the rounded 'maximum' microsecond length based on the maximum pulse of 600
-#define SERVO_FREQ 60 // Analog servos run at ~60 Hz updates
+#define SERVO_FREQ 50 // Analog servos run at ~50 Hz updates
 
 // our servo # counter
 uint8_t servonum = 0;
@@ -49,7 +49,7 @@ void setup() {
   // that precise. You can 'calibrate' by tweaking this number till
   // you get the frequency you're expecting!
   pwm.setOscillatorFrequency(27000000);  // The int.osc. is closer to 27MHz  
-  pwm.setPWMFreq(SERVO_FREQ);  // Analog servos run at ~60 Hz updates
+  pwm.setPWMFreq(SERVO_FREQ);  // Analog servos run at ~50 Hz updates
 
   delay(10);
 }
@@ -99,4 +99,4 @@ void loop() {
 
   servonum++;
   if (servonum > 7) servonum = 0; // Testing the first 8 servo channels
-}
+}