CC Peripheral List

local mon = peripheral.wrap("monitor_61")
local peri = "right"

while (true) do
  per = peripheral.wrap(peri)
  mon.clear()
  if (per == nil) then
    mon.setCursorPos(1,1)
    mon.write("Place a peripheral")
  else
    line = 1
    for x in pairs(per) do
      mon.setCursorPos(1,line)
      mon.write(x)
      line = line + 1
      print(x)
    end
  end
  sleep(1)
end