The plank has spent the last month cluttering up my limited work space, while a storage cover was made. This proved to be some what of a problem with some minor warp-age insuring very few angles where 90 degrees however eventually this was resolved. The opportunity was taken to fit the crossing gate servos these been controlled via a Ardunio Micro given the required sequence required a slow opening of the first gate, a pause while the fireman crosses the road and then opens the second gate.

Hacking a simple Ardunio sketch appears to give the required sequence although final adjustments where time consuming.

for those intrested in such things I attach the code

/*

This example code is in the public domain.

http://www.arduino.cc/en/Tutorial/Button

*/

#include <VarSpeedServo.h>

VarSpeedServo myservo1; // create servo object to control a servo

// a maximum of eight servo objects can be created

VarSpeedServo myservo2; // create servo object to control a servo

// a maximum of eight servo objects can be created

// constants won't change. They're used here to

// set pin numbers:

const int buttonPin = 2; // the number of the pushbutton pin

const int servoPin1 = 9; // the digital pin used for the servo

const int servoPin2 = 6; // the digital pin used for the servo

// variables will change:

int buttonState = 0; // variable for reading the pushbutton status

// LED connected to digital pin 13

void setup() {

myservo1.attach(servoPin1); // attaches the servo on pin 9 to the servo object

myservo1.write(120,0,true); // set the intial position of the servo,

myservo2.attach(servoPin2); // attaches the servo on pin 9 to the servo object

myservo2.write(110,0,true); // set the intial position of the servo,

// initialize the servo pin as an output:

pinMode(servoPin1, OUTPUT);

// initialize the pushbutton pin as an input:

pinMode(buttonPin, INPUT);

}

void loop(){

// read the state of the pushbutton value:

buttonState = digitalRead(buttonPin);

// check if the pushbutton is pressed.

// if it is, the buttonState is HIGH:

if (buttonState == HIGH) {

// turn servo on:

myservo2.write(110,2,true);

delay(6000); // waits for 6 seconds

myservo1.write(120,2,true);

}

else {

// turn servos off:

myservo1.write(55,2,true);

delay(6000); // waits for 6 econds

myservo2.write(55,2,true);

}

}

all a bit dry perhaps so some pictures and video to stop you falling asleep