I have recently been playing around with the arduino and audio, using the WTV020SD for play back. It is tedious to have to convert audio files into the AD4 file type, and the breakout board is very difficult to work with (e.g. it is very sensitive to types of SD cards used and voltage drops). To have the project I have devised (an alarm clock), easier for other people to use by simply putting MP3 files onto a SD card or USB stick, I would love to be able to create a PCB with MP3 playing capabilities. I know there are loads of MP3 breakout boards out there, mainly using the VS1053 chip, but I would like to be able to incorporate the audio processor, for example the VS1053, into my own PCB. This would look neater and take less space. You can argue if it is cheaper or not. Anyways, I cannot find anyone who has taken on this issue and published how to do it. So I ask, does anyone have a design/schematic that shows how to use, for example an VS1053 chip and control it via an arduino? Also, any necessary libraries to control the VS1053 would be great.
Adafruit sells VS1053 breakout boards, but good luck locating the Eagle cad files. If you do, please post here. I am interested as well. One reason you don't want to integrate the chip on your board is the added complexity to your board may reduce yield of working boards. I'd be happy just having pin headers to incorporate the breakout board. Otherwise, a lot of parts to source and make sure they are correct.
liudr:
Adafruit sells VS1053 breakout boards, but good luck locating the Eagle cad files. If you do, please post here. I am interested as well. One reason you don't want to integrate the chip on your board is the added complexity to your board may reduce yield of working boards. I'd be happy just having pin headers to incorporate the breakout board. Otherwise, a lot of parts to source and make sure they are correct.
Are you making a lot of boards or just a few?
I like breakout boards, for prototyping, but I dot think they look so neat for a PCB projects. Hence, I want to build a MP3 player from scratch. Also, making it from scratch, I think, would be a worthy project, that others could benefit from.
For a learning experience, go right ahead. Expect a number of revisions and rework. So get a decent rework station and tools. If you want a product and turn some profit, start with thru-hole parts and avoid spending excessive time on this portion. Your time is money too. We often don't account for it though.
Even better, do a double footprint if you have space. Plan on the surface mount chip and have the header for breakout board right next to it. If one doesn't work, you have a back up. How's that sound? If you can find adafruit's design, just copy paste so the header will be there.
I like the breakout board for VS1053. It has mounting holes. Hope they didn't solder the pins the way shown on the picture. Minor inconvenience to desolder them.
liudr:
For a learning experience, go right ahead. Expect a number of revisions and rework. So get a decent rework station and tools. If you want a product and turn some profit, start with thru-hole parts and avoid spending excessive time on this portion. Your time is money too. We often don't account for it though.
Even better, do a double footprint if you have space. Plan on the surface mount chip and have the header for breakout board right next to it. If one doesn't work, you have a back up. How's that sound? If you can find adafruit's design, just copy paste so the header will be there.
Sorry liudr, what do you mean by double foot print? Do you mean just make the PCB twice as big?