Thanks for that library - it's the only one I could get to work! I was able to create a sketch to tweet data from an EZ1 ultrasonic rangefinder, with an Uno. Works fine... for a while, but then stops tweeting after a while - seems to get 'stuck' trying to connect to the network. Any ideas, improvements etc welcome! Code is here: GitHub - increasinglyunclear/WiFly_twitter: This Arduino sketch tweets via Wifly