View difference between Paste ID: VciWTaS2 and xJ72ptz8

 rednet.open('back')
 local monitorScan = {peripheral.find('monitor')}
 local speakers = {peripheral.find('speaker')}
 local idr = 14
 
 local monitors={}
 
 local monitorList={'6','7'}
 
 for i,v in pairs(monitorScan) do
     local isValid = false
     for ii,vv in pairs(monitorList) do
         if peripheral.getName(v)==('monitor_'..vv) then
             isValid=true
         end
     end
     if isValid then
         table.insert(monitors,v)
     end
 end
 
 for i,v in pairs(monitors) do
     v.setTextScale(0.5)
     v.setBackgroundColor(colors.black)
     v.clear()
 end
 
 function drawScreen(monitor,image)
     local oldTerm = term.redirect(monitor)
     paintutils.drawImage(image,5,4)
     term.redirect(oldTerm)
 end
 
 function playNote(speaker,details)
     speaker.playNote(details[1],details[2])
 end
 
 while true do
     local id,data,type=rednet.receive()
     if id == idr and data and type then
         if type == '0' then
             for i,v in pairs(monitors) do
                 drawScreen(v,data)
             end
         elseif type == '1' then
             for i,v in pairs(speakers) do
                 playNote(v,data)
             end
         end
     end
 end