Opal Tessel

blink.rb

tessel = `require('tessel')`
  
led1 = tessel.led[0].output(1);
led2 = tessel.led[1].output(1);

Window.every 100, -> {
  puts "I'm blinking! (Press CTRL + C to stop)"
  led1.toggle();
  led2.toggle();
}

blinkopal.js

/* Generated by Opal 0.6.3 */
(function($opal) {
  var $a, $b, TMP_1, self = $opal.top, $scope = $opal, nil = $opal.nil, $breaker = $opal.breaker, $slice = $opal.slice, tessel = nil, led1 = nil, led2 = nil;

  $opal.add_stubs(['$output', '$[]', '$led', '$every', '$lambda', '$log', '$console', '$toggle']);
  tessel = require('tessel');
  led1 = tessel.$led()['$[]'](0).$output(1);
  led2 = tessel.$led()['$[]'](1).$output(1);
  return $scope.Window.$every(100, ($a = ($b = self).$lambda, $a._p = (TMP_1 = function(){var self = TMP_1._s || this;

  self.$puts("I'm blinking! (Press CTRL + C to stop)");
    led1.$toggle();
    return led2.$toggle();}, TMP_1._s = self, TMP_1), $a).call($b));
})(Opal);

original.js

var tessel = require('tessel');

var led1 = tessel.led[0].output(1);
var led2 = tessel.led[1].output(1);

setInterval(function () {
  console.log("I'm blinking! (Press CTRL + C to stop)");
  // Toggle the led states
  led1.toggle();
  led2.toggle();
}, 100);

original is a js file that runs on the device

The device runs nodejs, and I have to upload it.

I tried adding
Opal = require("opal") in the blickopal.js, but that didn't help.

my take (untested)

blink.rb:

require 'native'
tessel = Native(`require('tessel')`)

def every(ms,&callback)
  `setInterval(function(){callback()}, ms)`
end

led1 = tessel.led[0].output(1)
led2 = tessel.led[1].output(1)

every 100 do
  puts "I'm blinking! (Press CTRL + C to stop)"
  led1.toggle
  led2.toggle
end

gem install opal --pre
opal -c blick.rb > blink.js