MainComputer

MainComputer = {aeTimerID = nil}

comp = MainComputer

while true do
    event, param1, param2, param3 = os.pullEvent()
    if event == "redstone" then -- redstone, nil, nil, nil
        if colors.test(rs.getBundledInput('bottom'), colors.green) then
            seconds = 300
            print('Powering on AE for ' .. seconds .. ' seconds')
            comp.aeTimerID = os.startTimer(seconds)
            outputs = rs.getBundledInput('bottom')
            outputs = colors.combine(outputs, colors.red)
            rs.setBundledOutput('bottom', colors.red)
        end
    elseif event == "timer" then -- timer, timerid, nil, nil
        if param1 == comp.aeTimerID then
            print('Turning off the AE system.')
            outputs = rs.getBundledOutput('bottom')
            outputs = colors.subtract(outputs, colors.red)
            rs.setBundledOutput('bottom', outputs)
        end
    end
end