the button will wake it up again. I use a cheap li-ion pouch cell and USB
charger from amazon, one charge lasts for months asleep.
+There really isn't much other than the attiny, the LEDs and the switch:
+
+[[!img traffic_lights_sch.png size=800x600]]
+
Browse the [source](http://joe.milbourn.org.uk/git/trafficlights.git) or build
using arduino-makefile (included), say:
sketch, and connecting that to the avrisp connector on the traffic lights.
-[[!tag draft electronics]]
+[[!tag electronics]]