Test Chamber Manager V3

local test_id = "0"
local test_state = -1
local test_start = 0
local test_end = 0
local test_label = "1/1"
local test_elements = {"Button Interaction"}


function Loop()
ChamberManager("on")
while true do
    local event, a, b, c = os.pullEvent()
    if event == "rednet_message" then

    elseif event == "key" then

    else
        if redstone.getInput("bottom") == true then--test subject exits
            test_end = os.time()
            ChamberManager("reset")
        elseif redstone.getInput("left") == true then--test begins
            test_start = os.time()
        end
    end
    os.queueEvent("pass")
end
end

function ChamberManager(action)
if action == "reset" then
    redstone.setOutput("right",true)
    os.sleep(3)
    redstone.setOutput("right",false)
elseif action == "off" then
    redstone.setOutput("top",false)
    DisplayError_Monitor("chamber offline")
elseif action == "on" then
    redstone.setOutput("top",true)
    DrawMonitor()
end
end

function DisplayError_Monitor(error)
local monitor = peripheral.find("monitor_0")
monitor.setBackgroundColor(colors.black)
monitor.setTextColor(colors.yelloe)
monitor.clear()
monitor.setCursorPos(1,1)
monitor.write("an Error has occured")
monitor.setCursorPos(2,3)
monitor.write(error)
end

function DrawMonitor()
local monitor = peripheral.find("monitor_0")
monitor.setBackgroundColor(colors.white)
monitor.clear()
monitor.setCursorPos(2,2)
monitor.setTextColor(colors.black)
monitor.write("Aperture Science")
monitor.setCursorPos(2,3)
monitor.write(test_label)
monitor.setCursorPos(2,9)
monitor.write("testing elements")
for i = 1, #test_elements do
    monitor.setCursorPos(2,9 + i)
    monitor.write(test_elements[i])
end
end

Loop()