UPDATE: The BAL project has now been redesigned, check the BAL section on the header to see the changes!
So after successfully completing my RGB LED strip lights, I was at a loss for what project to embark on next. I wanted to make something a bit more flashy, and a bit more well built.
That is when I saw this video from Sparkfun, where they used an RN-52 Bluetooth module to stream audio directly from a phone into speakers. Now this on it's own is no real use to me, but streaming it to an audio jack where I could plug in headphones or plug it into my full speaker system at home? That's useful (and cool)!!!
So I went onto EagleCAD, and started designing, finally creating this lovely little board:
The design is chiefly pretty much the same as the sparkfun circuit, but instead of streaming it out to speakers, it has an audio jack. It also has a DC power jack with an onboard 3.3V supply. The switch is used to switch it between programming mode and normal mode.
If you are interested in the schematic, that is here:
As of yet, whilst I am still prototyping it, most of the components are through-hole, but if you want to order the board to try it out, it is available from OSHPark (which is where I ordered mine from).
WARNING, on the silkscreen, the LED's are backwards, if you order it make sure you put them the other way!
If you wish to make a board professionally, I seriously recommend OSHPark! They have amazing quality, and amazing prices too, and if you are not fussed about waiting, free international shipping. They are also run by a pretty cool guy called Laen, who is great.