decoder

function openModems()
 for _, v in pairs(rs.getSides()) do
  if peripheral.getType(v) == "modem" then
   rednet.open(v)
  end
 end
end

function react(msg)
 print(msg)
 pulse(10, "back")
end

function pulse(sec, side)
 local num = sec
 while true do
  local oldNum = num
  redstone.setOutput(side,true)
  sleep(0.5)
  redstone.setOutput(side,false)
  sleep(0.5)
  num = oldNum - 1
  if num == 0 then break end
 end
end

openModems()
term.clear()
term.setCursorPos(1, 1)
print("EAS Decoder v1.0")
print("Starting EAS decoder")
while true do
senderId, message, protocol = rednet.receive("easp")
react(message)
end