Overload attach: can specify initial angle for servo, too.

Author: dok-net

libraries/Servo/src/Servo.cpp

@@ -62,6 +62,11 @@ uint8_t Servo::attach(int pin)
 }
 
 uint8_t Servo::attach(int pin, uint16_t minUs, uint16_t maxUs)
+{
+  return attach(pin, minUs, maxUs, _valueUs);
+}
+
+uint8_t Servo::attach(int pin, uint16_t minUs, uint16_t maxUs, int value)
 {
   if (!_attached) {
     digitalWrite(pin, LOW);
@@ -76,7 +81,7 @@ uint8_t Servo::attach(int pin, uint16_t minUs, uint16_t maxUs)
   _maxUs = max((uint16_t)250, min((uint16_t)3000, maxUs));
   _minUs = max((uint16_t)200, min(_maxUs, minUs));
 
-  write(_valueUs);
+  write(value);
 
   return pin;
 }

libraries/Servo/src/Servo.h

@@ -63,8 +63,15 @@ class Servo
 public:
     Servo();
     ~Servo();
-    uint8_t attach(int pin);           // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure
-    uint8_t attach(int pin, uint16_t min, uint16_t max); // as above but also sets min and max values for writes. 
+    // attach the given pin to the next free channel, sets pinMode, returns channel number or 0 if failure.
+    uint8_t attach(int pin);
+    // attach the given pin to the next free channel, sets pinMode, min, and max values for writes.
+    // returns channel number or 0 if failure.
+    uint8_t attach(int pin, uint16_t min, uint16_t max);
+    // attach the given pin to the next free channel, sets pinMode, min, max values for writes,
+    // and sets the initial value, the same as write.
+    // returns channel number or 0 if failure.
+    uint8_t attach(int pin, uint16_t min, uint16_t max, int value);
     void detach();
     void write(int value);             // if value is < 200 its treated as an angle, otherwise as pulse width in microseconds 
     void writeMicroseconds(int value); // Write pulse width in microseconds