binClock

 local binClock = wibox.widget.base.make_widget()
 binClock.radius = 1.5
 binClock.shift = 1.8
 binClock.farShift = 2
 binClock.border = 1
 binClock.lineWidth = 1
 binClock.colorActive = beautiful.bg_focus

 binClock.fit = function(binClock, width, height)
    local size = math.min(width, height)
    return 6 * 2 * binClock.radius + 5 * binClock.shift + 2 * binClock.farShift + 2 * binClock.border + 2 * binClock.border, size
 end

 binClock.draw = function(binClock, wibox, cr, width, height)
    local curTime = os.date("*t")

    local column = {}
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.hour), 1, 1))))
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.hour), 2, 2))))
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.min), 1, 1))))
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.min), 2, 2))))
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.sec), 1, 1))))
    table.insert(column, string.format("%04d", binClock:dec_bin(string.sub(string.format("%02d", curTime.sec), 2, 2))))

    local bigColumn = 0
    for i = 0, 5 do
        if math.floor(i / 2) > bigColumn then
            bigColumn = bigColumn + 1
        end
        for j = 0, 3 do
            if string.sub(column[i + 1], j + 1, j + 1) == "0" then
                active = false
            else
                active = true
            end
            binClock:draw_point(cr, bigColumn, i, j, active)
        end
    end
 end

 binClock.dec_bin = function(binClock, inNum)
    inNum = tonumber(inNum)
    local base, enum, outNum, rem = 2, "01", "", 0
    while inNum > (base - 1) do
        inNum, rem = math.floor(inNum / base), math.fmod(inNum, base)
        outNum = string.sub(enum, rem + 1, rem + 1) .. outNum
    end
    outNum = inNum .. outNum
    return outNum
 end

 binClock.draw_point = function(binClock, cr, bigColumn, column, row, active)
    cr:arc(binClock.border + column * (2 * binClock.radius + binClock.shift) + bigColumn * binClock.farShift + binClock.radius,
         binClock.border + row * (2 * binClock.radius + binClock.shift) + binClock.radius, 2, 0, 2 * math.pi)
    if active then
        cr:set_source_rgba(0, 0.5, 0, 1)
    else
        cr:set_source_rgba(0.5, 0.5, 0.5, 1)
    end
    cr:fill()
 end

 binClocktimer = timer { timeout = 1 }
 binClocktimer:connect_signal("timeout", function() binClock:emit_signal("widget::updated") end)
 binClocktimer:start()