This prototype smart clothes pin is an ambient display of sorts. Designed by Brunel University student Oliver MacCarthy, the Weather Predicting Clothes Peg is outfitted with sensors to detect changes in air pressure correlated to rain. From the BBC:
If rain is forecast within the next half hour, the peg will lock itself.
The lock-down prevents the washing being hung on the line…
He was inspired by his own personal frustrations with soggy pants.
"I thought of clothes pegs because so often I hang washing out, only to take it in five minutes later, absolutely soaked," he said.
