My personal website: http://liandongdong.com/home/ File:https://drive.google.com/drive/folders/1zo109hgqCkvUfZxo0HFbL6TzscgCZEit?usp=sharing code for chopexecute def onOffToOn(channel, sampleIndex, val, prev): op(‘serial1’).send(‘2’,terminator =”) return def whileOn(channel, sampleIndex, val, prev): return def onOnToOff(channel, sampleIndex, val, prev): op(‘serial1’).send(‘3’,terminator =”) return def whileOff(channel, sampleIndex, val, prev): return def onValueChange(channel, sampleIndex, val, prev): return