robot

print("Please enter what this program runs through(turtle/tablet): ")
local input = read()
term.clear()
print("Good")

-- tablet --
if input == "tablet" then

    print("Please enter a communication channel from 2 to 65535(This channel must match the turtle channel): ")
    local inputCHx = read()
    term.clear()
    print("Good")
    local inputCH = inputCHx + 0
    local modem = peripheral.wrap("back")

    while true do
        local sEvent, param = os.pullEvent("key")
        if sEvent == "key" then
            modem.transmit(inputCH, (inputCH - 1), param)
        end
    end
end

-- turtle --
if input == "turtle" then

    print("Please enter a communication channel from 2 to 65535(This channel must match the tablet channel): ")
    local inputCHx = read()
    term.clear()
    print("Good")
    local inputCH = inputCHx + 0

    local modem = peripheral.wrap("right")

    while true do
        modem.open(inputCH)
        local event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
        local key = message + 0

        if key == 87 then -- W --
            turtle.forward()
        elseif key == 65 then -- A --
            turtle.turnLeft()
        elseif key == 83 then -- S --
            turtle.back()
        elseif key == 68 then -- D --
            turtle.turnRight()
        elseif key == 81 then -- Q --
            turtle.down()
        elseif key == 69 then -- E --
            turtle.up()
        elseif key == 70 then -- F --
            turtle.dig()
        end
    end
end

print("Error")