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2013
Phillip Burgess of Adafruit has used the Adafruit LCD Pi Plate to build a Raspberry Pi radio that can play Pandora streaming over Wi-Fi:   http://www.adafruit.com/blog/2013/04/12/make-a-raspberry-pi-wifi-radio/ Raspberry Pi, the little wonder-puter that’s taken the world by storm, is so affordable that we can create nifty single-purpose “appliances” around them without shame. Here’s our take on one of the more popular such applications: internet streaming media, the ...
PiFace controlling DC motor speed (notice the LEDs fading in and out, too) [http://www.youtube.com/watch?v=QO9lDBBy5s8]   To follow up my last post, PiFace relay tricks: metronome & "playing" middle A, I'd like to show how Gordon's PiFace PWM code can be used to control the speed of a DC motor connected to one of the PiFace output screw terminals:     And the installation instructions:           Cheers, Drew   ...
Gordon of WiringPi and drogon.net has created a nifty metronome demo program for the PiFace:   Here's the source code:   And the installation instructions:   As you'll notice in the above instructions, Gordon has figured out how to do PWM with the PiFace outputs!  Here is rather noisy application, middle A being "played" on the relays:   The background of Gordon's PWM PiFace work is in this comment on his blog: https://projects.drogon.net/raspberry-p ...