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  • jeremy tom May 7, 2014 at 2:26am

    I found this great website to help you compare products and brands: http://www.nauticexpo.com/boat-manufacturer/navigation-light-398.html

  • Euan Ramsay November 11, 2013 at 1:17am

    I just use this controller on my quad, with the really high vis LED's:

    http://www.braincube-aero.com/index.php?main_page=product_info&....

    Runs off a single channel. Simples. Warning: it's heavier than you might think.

  • Simon Wunderlin September 25, 2012 at 11:22am

    You could use an unused servo channel for this. In them Mission planner there is a special waypoint type (DO_SET_SERVO) which can change a servo channel output on APM (that way, it would also be possible to change the lights directly from the Transmitter).

     

    I am using an ATtiny85(~$3) to switch some additional stuff. I am only switching LEDs, you probably would need a FET to switch more powerful lights.

    Example ATtiny85 code:


    /**
     * Read PPM signal
     * 
     * Decode r/c receiver PPM servo signal and turn lights on 
     * according to servo position.
     *
     * $Id$
     */

    // from which pin to read.
    #define PIN_PPM  0
    #define PIN_POS1 3
    #define PIN_POS2 4

    // the length of the pulse (in microseconds) or 0 if no pulse 
    // started before the timeout (unsigned long)
    unsigned long duration, lastgood = 0;
    int position= 0;

    void setup() {
      pinMode(PIN_PPM, INPUT);
      pinMode(PIN_POS1, OUTPUT);
      pinMode(PIN_POS2, OUTPUT);
      digitalWrite(PIN_POS1, LOW);
      digitalWrite(PIN_POS2, LOW);
      //Serial.begin(115200);
    }

    void loop() {
      duration = pulseIn(PIN_PPM, HIGH, 20000);
      if (duration == 0) {
        duration = lastgood;
      } else {
        lastgood = duration;
      }
      
      position = map(lastgood, 1000, 2000, 0, 2);
      if (position > 0) {
        digitalWrite(PIN_POS1, HIGH);
      } else {
        digitalWrite(PIN_POS1, LOW);
      }
      
      if (position > 1) {
        digitalWrite(PIN_POS2, HIGH);
      } else {
        digitalWrite(PIN_POS2, LOW);
      }
    }

    Best

    -S

    AVR 8 Pin 20MHz 8K 4A/D - ATtiny85
    Atmel's itty-bitty ATtiny85 8-Bit Processor. 8K of program space, 6 I/O lines, and 4-channel 10 bit ADC. Runs up to 20MHz with external crystal. Pack…
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