noflo square wave generator component?

gistfile1.coffee

noflo = require 'noflo'

exports.getComponent = ->
  c = new noflo.Component
  c.inPorts.add 'low', (event, payload) =>
    @low = payload
    
  c.inPorts.add 'high', (event, payload) =>
    @high = payload
    
  c.inPorts.add 'dt', (event, payload) =>
    @dt = payload
    
  c.inPorts.add 'simConfig', (event, payload) =>
    return unless event is 'data'
    # config passthrough
    c.outPorts.simConfig.send payload
	
    values = new Array(payload.length)
    
    for t of values
      #start low
      if t % (2 * @dt) < @dt
        values[t] = @low
      else
        values[t] = @high
      	
    c.outPorts.out.send values
    
  # array of values
  c.outPorts.add 'out'
 
  # config passthrough
  c.outPorts.add 'simConfig'
  return c