Cyntech weather hat for raspberry pi cyntech weatherhat the sun has got his hat on br br if you have a raspberry pi and want a fun way to show what the weather is doing either now a day in advance or on an upcoming holiday then you need the weather hat the weather hat turns your raspberry pi into a handy weather display graphically showing you if it s cloudy sunny or raining br br there are seven super bright rgb leds in a rainbow shape and other leds take the form of b