How to transfer Data from TouchDesigner to Arduino Board (beginner friendly)

My personal website: liandongdong.co...
File:drive.google.c...
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