local MODEM_SIDE = "bottom"
local CONTROLLER_SIDE = "front" -- ← поменяй при необходимости
local CHANNEL = 123

local modem = peripheral.wrap(MODEM_SIDE)
if not modem then
  error("Модем не найден снизу")
end

local controller = peripheral.wrap(CONTROLLER_SIDE)
if not controller then
  error("Create Speed Controller не найден")
end

modem.open(CHANNEL)

local speed = 0
controller.setSpeed(speed)

print("Приёмник запущен")
print("Текущая скорость:", speed)

while true do
  local _, _, _, _, msg = os.pullEvent("modem_message")

  if type(msg) == "table" then
    if msg.action == "inc" then
      speed = speed + msg.step
    elseif msg.action == "dec" then
      speed = speed - msg.step
    end

    controller.setSpeed(speed)
    print("Скорость:", speed)
  end
end