Playing Stimuli in a loop

[PiezaKake]

I have two signals. The first one is a sinewave generated via FunctionGenerator then fed into AnalogOutput. The second one is read with MatrixReader then fed into AnalogOutput. In the code below both signals run in parrallel. I want to adjust the code so that the first stimulus plays for 2 sec, then there is a 5 sec pause, then the second stimulus plays, then there is a 5 sec pause, and it keeps repeating in a loop. I tried to use the Timer node, but its property 'period' is affecting the signals.

Click to expand the XML code

<?xml version="1.0" encoding="utf-8"?>
<WorkflowBuilder Version="2.8.5"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xmlns:dsp="clr-namespace:Bonsai.Dsp;assembly=Bonsai.Dsp"
                 xmlns:mx="clr-namespace:Bonsai.DAQmx;assembly=Bonsai.DAQmx"
                 xmlns="https://bonsai-rx.org/2018/workflow">
  <Workflow>
    <Nodes>
      <Expression xsi:type="Combinator">
        <Combinator xsi:type="dsp:FunctionGenerator">
          <dsp:BufferLength>441</dsp:BufferLength>
          <dsp:Frequency>10</dsp:Frequency>
          <dsp:Waveform>Sine</dsp:Waveform>
          <dsp:SampleRate>44100</dsp:SampleRate>
          <dsp:Amplitude>1</dsp:Amplitude>
          <dsp:Offset>0</dsp:Offset>
          <dsp:Phase>0</dsp:Phase>
        </Combinator>
      </Expression>
      <Expression xsi:type="Combinator">
        <Combinator xsi:type="mx:AnalogOutput">
          <mx:SignalSource />
          <mx:SampleRate>44100</mx:SampleRate>
          <mx:ActiveEdge>Rising</mx:ActiveEdge>
          <mx:SampleMode>ContinuousSamples</mx:SampleMode>
          <mx:BufferSize>1000</mx:BufferSize>
          <mx:Channels>
            <mx:AnalogOutputChannelConfiguration>
              <mx:ChannelName>Galvo</mx:ChannelName>
              <mx:MinimumValue>-5</mx:MinimumValue>
              <mx:MaximumValue>5</mx:MaximumValue>
              <mx:PhysicalChannel>Dev3/ao0</mx:PhysicalChannel>
              <mx:VoltageUnits>Volts</mx:VoltageUnits>
            </mx:AnalogOutputChannelConfiguration>
          </mx:Channels>
        </Combinator>
      </Expression>
      <Expression xsi:type="Combinator">
        <Combinator xsi:type="dsp:MatrixReader">
          <dsp:Path>D:\Thanos\Neuropixel test recording\white_noise_signal.bin</dsp:Path>
          <dsp:Offset>0</dsp:Offset>
          <dsp:SampleRate>192000</dsp:SampleRate>
          <dsp:ChannelCount>1</dsp:ChannelCount>
          <dsp:BufferLength>1000</dsp:BufferLength>
          <dsp:Depth>F64</dsp:Depth>
          <dsp:Layout>ColumnMajor</dsp:Layout>
        </Combinator>
      </Expression>
      <Expression xsi:type="Combinator">
        <Combinator xsi:type="mx:AnalogOutput">
          <mx:SignalSource />
          <mx:SampleRate>192000</mx:SampleRate>
          <mx:ActiveEdge>Rising</mx:ActiveEdge>
          <mx:SampleMode>ContinuousSamples</mx:SampleMode>
          <mx:BufferSize>1000</mx:BufferSize>
          <mx:Channels>
            <mx:AnalogOutputChannelConfiguration>
              <mx:ChannelName />
              <mx:MinimumValue>-10</mx:MinimumValue>
              <mx:MaximumValue>10</mx:MaximumValue>
              <mx:PhysicalChannel>Dev2/ao0</mx:PhysicalChannel>
              <mx:VoltageUnits>Volts</mx:VoltageUnits>
            </mx:AnalogOutputChannelConfiguration>
          </mx:Channels>
        </Combinator>
      </Expression>
    </Nodes>
    <Edges>
      <Edge From="0" To="1" Label="Source1" />
      <Edge From="2" To="3" Label="Source1" />
    </Edges>
  </Workflow>
</WorkflowBuilder>

[bruno-f-cruz]

I dont have the nidaq package installed, but something like this pattern perhaps?

[PiezaKake]

Hi Bruno,

Thanks for the prompt reply. That didn't quite work for me, but the sequence below works well for a single repetition of the pattern. Any suggestions how to keep playing this in a loop?