display_storage.lua

m = peripheral.wrap("monitor_1")

m.setCursorBlink(false)
m.setBackgroundColor(colors.black)
m.setForegroundColor(colors.white)

mW,mH = m.size()

local storage = {}

local function setFC(c) m.setForegroundColor(c) end
local function setBC(c) m.setBackgroundColor(c) end

print("Reading storage containers from 'storage.list'..."
for s in io.lines("storage.list") do
    print("Registering storage "..s.."...")
    table.insert(storage,peripheral.wrap(s))
end
print("DONE! Initializing...")

function readStorageData()
    local items = {}
    for _,p in pairs(storage) do
        for i,v n pairs(p.list()) do
            items[v.name] = (items[v.name] or 0) + v.count
        end
    end
    return items
end

function updateDisplay()
    m.setCursorPos(1,mH)
    setFC(colors.white)
    m.write("Reloading item data...")
    local items = readStorageData()
    m.clear()
    m.setCursorPos(1,1)
    m.write("ITEM INVENTORY")
    m.setCursorPos(1,3)
    setFC(colors.orange)
    m.write("COPPER")
    m.setCursorPos(1,4)
    m.setFC(colors.white)
    m.write("IRON")
end