ComputerCraft - Main

        -- Wrap the modem and monitor
        local mon = peripheral.wrap("top")
        local wmod = peripheral.wrap("bottom")

        --Open different channels for different liquids
        wmod.open(1) --FirstWaterTank
        wmod.open(2) --FirstWaterTank -> Warning
        wmod.open(3) --2ndWaterTank
        wmod.open(4) --2ndWaterTank -> Warning
        wmod.open(5) --2ndWaterTank
        wmod.open(6) --2ndWaterTank -> Warning

        mon.clear()
        mon.setCursorPos(1,1)
        mon.setTextScale(1.4)
        mon.setTextColour(colors.orange)
        mon.write("Liquid Status:")

        -- Main loop, never stop
        while true do
          -- Check for incoming data on any open channel
          local event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")

          -- Add one case for every liquid
          -- Change channel and text for each

          if senderChannel == 1  or senderChannel == 2 then
            mon.setCursorPos(1,2)
            print(message .." - WaterTank1,")
            if senderChannel == 1 then
            mon.setTextColour(colors.cyan)
            else
            mon.setTextColour(colors.red)
            end
            mon.write(message .."                             ")
          elseif senderChannel == 3  or senderChannel == 4 then
            mon.setCursorPos(1,3)
            print(message .." - WaterTank2,")
            if senderChannel == 3 then
            mon.setTextColour(colors.cyan)
            else
            mon.setTextColour(colors.red)
            end
            mon.write(message .."                             ")
          elseif senderChannel == 5  or senderChannel == 6 then
            mon.setCursorPos(1,4)
            print(message .." - Oil,")
            if senderChannel == 3 then
            mon.setTextColour(colors.lightGray)
            else
            mon.setTextColour(colors.red)
            end
            mon.write(message .."                             ")
          end

        end