main.lua

os.loadAPI("ATMApi.lua")

os.pullEvent = os.pullEventRaw

local w,h = term.getSize()

function printCentered( y,s )
   local x = math.floor((w - string.len(s)) / 2)
   term.setCursorPos(x,y)
   term.clearLine()
   term.write( s )
end

term.clear()
printCentered( math.floor(h/2) - 3, "Insert card and press enter")


while true do
    local event, key = os.pullEvent("key")

    if key == keys.enter then
        if ATMApi.cardIn() == true then break end
    end
end

shell.run("enter_pin")
--rednet.open("top")
--rednet.send(0, "client 948211")
--id, message = rednet.receive()
--print(message.pass)