SpaceButton: Code for a Nanode based networked on/off status button. To compile, you need the techinc-fork of the EtherCard library which can be found at: https://github.com/techinc/ethercard (The fork adds a polling interface for DHCP and DNS.) The status LED should be connected to LED_PIN such that a LOW output state will make it light up. The button should be connected such that it pulls down BUTTON_PIN. The code assumes a circuit breaking button, change BUTTON_PRESS to LOW for a circuit making button.