Rockbox Development > New Ports
Rockbox Player - Project to design and build a Free/Open hardware audio player
coacharnold:
So, I use RasPis with various DACs ... to pretty good results. in my home . For 20$ I just got what turned out to be a really good one from an ASIAN knock off group who are cloning the hifi berry stuff ...
but just found this ... even better
https://www.adafruit.com/product/3016
coacharnold:
Ok .. so also .... just found this
https://www.aliexpress.com/item/UGEEK-ZPOD-High-quality-lossless-HiFi-music-player-192k-24bit-Build-w-Raspberry-Pi-Zero-Portable/32790282017.html
uhmgawa:
--- Quote from: majianjia on January 16, 2018, 03:26:23 PM ---For RPI 0 there is some points that might need to be considered.
- Screen might be a problem.
- ower comsuption
- Sound quality
--- End quote ---
A RBPi0 is already a pre-packaged generic board so I wouldn't add more generic off-the-shelf stuff to the solution.
Eg, the mini HDMI connector isn't doing anything for you and if a custom board were designed for an audio player
device, it would be the first component to get the boot along with support circuitry. But we can work with the Zero
given its diminutive size. So whatever is added should be a custom solution and address the above concerns.
I'd use a popular cell phone Li-poly battery, a form-appropriate lcd, and design around those physical restrictions
as the remaining components are far more flexible.
Assuming a linux host, there are many knobs for power consumption reduction. Sound quality shouldn't be an
issue using an I2S codec. So I don't see any insurmountable issues.
--- Quote ---Ok .. so also .... just found this
https://www.aliexpress.com/item/UGEEK-ZPOD-High-quality-lossless-HiFi-music-player-192k-24bit-Build-w-Raspberry-Pi-Zero-Portable/32790282017.html
--- End quote ---
Unclear if that is a repackaging for a Zero or a PI-2 as that blurb refers to both. Physically it appears to be a
PI-2 brick and probably somewhat clumsy to carry around. Also more unneeded crap gets drug in such as 4x
USB host ports and a full HDMI connector. Also the 100-mil connector comes soldered in which complicates
optimizing out the bulk introduced by that component. Also a quad core 1GHz processor is beyond overkill for
the task. So is the Zero's single core 1GHz which could likely be dropped by an order of magnitude during
most stream decoding operations.
coacharnold:
sure just looking for stuff off the shelf that we can use to get this going ..... like
https://shop.pimoroni.com/products/lipo-shim
saratoga:
--- Quote from: coacharnold on January 16, 2018, 02:43:39 PM ---Will ir run on a Ras Pi ... and then ... will it communicate with he touch screen or does it need button inputs to be written into the code?
--- End quote ---
Assuming you can get the touchscreen to work with SDL+linux, yes you could, although remember Rockbox has only very crude support for touch screen devices (it is made for physical buttons). You will need to implement button mapping and other things (e.g. if you add buttons what they do).
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