shaftElevatorBottom

local modem = peripheral.find("modem")
if (modem == nil) then
    print("no modem link")
    return
end
modem.open(1)

local function sendToTop()
    modem.transmit(0, 1, "take change")
end

local function redstoneCheck()
while true do
    os.pullEvent("redstone")
    printf("redstone")
    switch()
end
end

redstoneCheck()