FTB - Glasses example

br = peripheral.wrap("top") --Terminal Glasses Swag
bb = peripheral.wrap("batbox_2") -- Batbox

function bbPower()
    bbLevel = tostring(bb.getStored()) --Gets Energy level in batbox
    local bbString = br.getStringWidth(bbLevel) --Gets how long the EU 'text' is

    if tonumber(bb.getStored()) > 5 then --If the Eu is More than 5 then
        br.addText(5, 90, "Batbox:", 0x00158F) --   These lines will display how much EU there is with:
        br.addText(45, 90, bbLevel, 0x00FF2F) --                      BatBox: 38543 EU
        br.addText(47 + bbString, 90, " EU", 0x00158F)
    else
        br.addText(5, 90, "No Energy in Batbox!", 0x00158F) -- If the EU is less than 5
                                    -- then this will display
                                    -- "No Energy in batbox!"
    end
end

while true do -- THis little snipit auto-updates how much Eu there is on the HUD
br.clear() --Clears the glasses
bbPower() -- Re-Shows the EU
sleep(0.1) -- How fast it updates
end