const uint8_t pinRC1 = 9;   //OC1A output
const uint8_t pinRC2 = 10;  //OC1B output

void setup()  
{
  TCCR1A = _BV(COM1A1) | _BV(COM1B1) | _BV(WGM11);    //COM1x clear on match, set on bottom
  TCCR1B = _BV(WGM13) | _BV(WGM12)| _BV(CS11);        //WGM=14, /8 prescaler
  ICR1 = 39999;   //20mS period for timer 1
  OCR1A = 3000;   //1.5mS pulse on pin  9 for centre position
  OCR1B = 3000;   //1.5mS pulse on pin 10 for centre position

  pinMode( pinRC1, OUTPUT );
  pinMode( pinRC2, OUTPUT );
}//setup

void loop() 
{
  int pot1 = analogRead(A0);
  int pot2 = analogRead(A1);

  // Default servo signal:
  //   minimal 544 microseconds   OCR1 compare value = 1088
  //   maximum 2400 microseconds  OCR1 compare value = 4800

  int servo1ocr = map( pot1, 0, 1023, 1088, 4800);
  int servo2ocr = map( pot2, 0, 1023, 1088, 4800);

  OCR1A = servo1ocr;
  OCR1B = servo2ocr;

  delay( 20);
}//loop