My awesome conky rings :D

.conkyrc

default_color white
own_window_colour white
alignment top_right
max_user_text 16384
max_specials 512
gap_x 0
gap_y 40
no_buffers yes
uppercase no
cpu_avg_samples 2
net_avg_samples 2
override_utf8_locale yes
use_spacer none
default_color 99ccff
color2 5191b7
color3 116187
color4 11CCFF

lua_load ~/.conky/rings.lua
lua_draw_hook_pre rings

TEXT
${voffset 708}${font Designer Block:size=8}${color3}${alignr 32}Kernel:${color2} ${kernel}${font}${color}

rings.lua

--[[

Rings by londonali1010 (2009)
Customized by nu7hatch (2010)

To call this script in Conky, use the following (assuming that you save this script to ~/.conky/rings.lua):
	lua_load ~/.conky/rings.lua
	lua_draw_hook_pre rings
]]


function network_interface()
	return conky_parse('${if_existing /proc/net/route eth0}eth0${else}${if_existing /proc/net/route wlan0}wlan0${endif}${endif}')
end

settings_table = {
	{
		name='time',
		arg='%I.%M',
		max=12,
		bg_colour=0x33aaff,
		bg_alpha=0.05,
		fg_colour=0x33aaff,
		fg_alpha=0.5,
		x=742, y=171,
		radius=73,
		thickness=10,
		start_angle=0,
		end_angle=360
	},
	{
		name='time',
		arg='%M.%S',
		max=60,
		bg_colour=0x55bbff,
		bg_alpha=0.05,
		fg_colour=0x55bbff,
		fg_alpha=0.3,
		x=742, y=171,
		radius=104,
		thickness=7,
		start_angle=0,
		end_angle=360
	},
	{
		name='time',
		arg='%S',
		max=60,
		bg_colour=0x55bbff,
		bg_alpha=0.05,
		fg_colour=0x55bbff,
		fg_alpha=0.1,
		x=742, y=171,
		radius=127,
		thickness=5,
		start_angle=0,
		end_angle=360
	},
	{
		name='cpu',
		arg='cpu0',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.3,
		fg_colour=0x55bbff,
		fg_alpha=0.8,
		x=202, y=219,
		radius=27,
		thickness=4,
		start_angle=210,
		end_angle=443
	},
	{
		name='cpu',
		arg='cpu1',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.3,
		fg_colour=0x55bbff,
		fg_alpha=0.8,
		x=202, y=219,
		radius=20,
		thickness=4,
		start_angle=210,
		end_angle=468
	},
	{
		name='cpu',
		arg='cpu2',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.3,
		fg_colour=0x55bbff,
		fg_alpha=0.8,
		x=341, y=246,
		radius=23,
		thickness=4,
		start_angle=234,
		end_angle=470
	},
	{
		name='cpu',
		arg='cpu3',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.3,
		fg_colour=0x55bbff,
		fg_alpha=0.8,
		x=341, y=246,
		radius=16,
		thickness=4,
		start_angle=234,
		end_angle=495
	},
	{
		name='acpitemp',
		arg='',
		max=120,
		bg_colour=0x55bbff,
		bg_alpha=0.2,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=452, y=314,
		radius=20,
		thickness=3,
		start_angle=268,
		end_angle=508
	},
	{
		name='battery_percent',
		arg='BAT0',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.1,
		fg_colour=0x55bbff,
		fg_alpha=0.3,
		x=568, y=430,
		radius=19,
		thickness=3,
		start_angle=124,
		end_angle=465
	},
	{
		name='memperc',
		arg='',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.3,
		fg_colour=0x55bbff,
		fg_alpha=0.8,
		x=368, y=527,
		radius=91,
		thickness=3,
		start_angle=143,
		end_angle=465
	},
	{
		name='swapperc',
		arg='',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.2,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=490, y=610,
		radius=65,
		thickness=2,
		start_angle=94,
		end_angle=445
	},
	{
		name='fs_used_perc',
		arg='/',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.1,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=908, y=408,
		radius=70,
		thickness=8,
		start_angle=220,
		end_angle=281

	},
	{
		name='fs_used_perc',
		arg='/home',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.1,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=908, y=408,
		radius=70,
		thickness=8,
		start_angle=296,
		end_angle=399
	},
	{
		name='fs_used_perc',
		arg='/basement',
		max=100,
		bg_colour=0x55bbff,
		bg_alpha=0.1,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=908, y=408,
		radius=70,
		thickness=8,
		start_angle=407,
		end_angle=571
	},
}

network_settings_table = {
	{
		name='upspeedf',
		arg=network_interface(),
		max=2*1024,
		bg_colour=0x55bbff,
		bg_alpha=0.2,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=1089, y=339,
		radius=46,
		thickness=5,
		start_angle=642,
		end_angle=720
	},
	{
		name='downspeedf',
		arg=network_interface(),
		max=2*1024,
		bg_colour=0x55bbff,
		bg_alpha=0.2,
		fg_colour=0x55bbff,
		fg_alpha=0.6,
		x=1089, y=339,
		radius=54,
		thickness=5,
		start_angle=641,
		end_angle=720
	}
}

clock_r=130
clock_x=742
clock_y=171
clock_colour=0x99ccff
clock_alpha=0.8

show_seconds=true

require 'cairo'

function rgb_to_r_g_b(colour,alpha)
	return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end

function draw_ring(cr,t,pt)
	local w,h=conky_window.width,conky_window.height

	local xc,yc,ring_r,ring_w,sa,ea=pt['x'],pt['y'],pt['radius'],pt['thickness'],pt['start_angle'],pt['end_angle']
	local bgc, bga, fgc, fga=pt['bg_colour'], pt['bg_alpha'], pt['fg_colour'], pt['fg_alpha']

	local angle_0=sa*(2*math.pi/360)-math.pi/2
	local angle_f=ea*(2*math.pi/360)-math.pi/2
	local t_arc=t*(angle_f-angle_0)

	-- Draw background ring

	cairo_arc(cr,xc,yc,ring_r,angle_0,angle_f)
	cairo_set_source_rgba(cr,rgb_to_r_g_b(bgc,bga))
	cairo_set_line_width(cr,ring_w)
	cairo_stroke(cr)

	-- Draw indicator ring

	cairo_arc(cr,xc,yc,ring_r,angle_0,angle_0+t_arc)
	cairo_set_source_rgba(cr,rgb_to_r_g_b(fgc,fga))
	cairo_stroke(cr)
end

function draw_clock_hands(cr,xc,yc)
	local secs,mins,hours,secs_arc,mins_arc,hours_arc
	local xh,yh,xm,ym,xs,ys

	secs=os.date("%S")
	mins=os.date("%M")
	hours=os.date("%I")

	secs_arc=(2*math.pi/60)*secs
	mins_arc=(2*math.pi/60)*mins+secs_arc/60
	hours_arc=(2*math.pi/12)*hours+mins_arc/12

	-- Draw hour hand

	xh=xc+0.7*clock_r*math.sin(hours_arc)
	yh=yc-0.7*clock_r*math.cos(hours_arc)
	cairo_move_to(cr,xc,yc)
	cairo_line_to(cr,xh,yh)

	cairo_set_line_cap(cr,CAIRO_LINE_CAP_ROUND)
	cairo_set_line_width(cr,5)
	cairo_set_source_rgba(cr,rgb_to_r_g_b(clock_colour,clock_alpha))
	cairo_stroke(cr)

	-- Draw minute hand

	xm=xc+clock_r*math.sin(mins_arc)
	ym=yc-clock_r*math.cos(mins_arc)
	cairo_move_to(cr,xc,yc)
	cairo_line_to(cr,xm,ym)

	cairo_set_line_width(cr,3)
	cairo_stroke(cr)

	-- Draw seconds hand

	if show_seconds then
		xs=xc+clock_r*math.sin(secs_arc)
		ys=yc-clock_r*math.cos(secs_arc)
		cairo_move_to(cr,xc,yc)
		cairo_line_to(cr,xs,ys)

		cairo_set_line_width(cr,1)
		cairo_stroke(cr)
	end
end

function conky_rings()
	local function setup_rings(cr,pt)
		local str=''
		local value=0

		str=string.format('${%s %s}',pt['name'],pt['arg'])
		str=conky_parse(str)

		value=tonumber(str)
		if value == nil then value = 0 end
		pct=value/pt['max']

		draw_ring(cr,pct,pt)
	end

	-- Check that Conky has been running for at least 5s

	if conky_window==nil then return end

	local cs=cairo_xlib_surface_create(conky_window.display,conky_window.drawable,conky_window.visual, conky_window.width,conky_window.height)
	local cr=cairo_create(cs)	
	local updates=conky_parse('${updates}')

	update_num=tonumber(updates)

	for i in pairs(settings_table) do
	      	 setup_rings(cr,settings_table[i])
	end

	if (network_interface() ~= '') then
		for i in pairs(network_settings_table) do
			setup_rings(cr,network_settings_table[i])
		end
	end

	draw_clock_hands(cr,clock_x,clock_y)
end