myTimer.lua

local function writeCentered(text)
local x,y=term.getSize()
local centerYPos=y/2
local centerXStartingPos = (x-string.len(text)) /2
term.setCursorPos( centerXStartingPos, centerYPos)
print(text)
end

local monitor = peripheral.wrap("top")
term.redirect(monitor)

term.clear()

while true do
local stop = rs.getInput("back")
if stop == false then
rs.setOutput("right",true)
writeCentered("Sending Lava")
sleep(1)
rs.setOutput("right",false)
for i=1,360 do
sleep(1)
term.clear()
writeCentered(360-i)
end
else
writeCentered("Currently Deactivated")
end
end