PhatDac - Raspberry PI 0 W


#1

Hi, I am just getting static noices when using the raspberry pi 0 and my new phatdac. The static is coming from the Line Out/mini jack, and from the L&R I am not getting anything when connecting to a speaker. I think it must be something wrong with the phatdac.

Anyone have any ideas to how I can solve this?

Regards
Espen


#2

Did you use our one-line installer to set it up? What are you using to play audio?

Could you also post a picture of your soldering?


#3

Yeah, I tried that, but I never got the installation going because of missing rights on the raspberry. I did however do the manual installation. The OS that i used was this: http://www.pimusicbox.com/ which is based on mopidy.


#4

I’d suggest tidying up your soldering joints, it could very easily be an electrical issue. Pay special attention to the pins that pHAT DAC uses: https://pinout.xyz/pinout/phat_dac

Let the iron heat up, touch a little solder to it gently to wet the tip, then hold it against the copper ring of the PCB and the header pin until the solder melts and slurps into the hole. Each joint should look like a tiny volcano.


#5

OK, I’ll give that a go, i don’t think the soldering looks to bad though but I’ll give it a clean-up.

Thanks


#6

Hi

Pin 5 on the first column certainly looks dodgy as do several others from that photo.

Cheers

Paul


#7

Hi, well you were right, after re-soldering, it sounds better. I now have sound through the Line Out Mini jack, but how do I get sound on the left and right so I can connect it right to the speaker?


#8

Think you’ll need to pop one of these in: https://shop.pimoroni.com/products/dual-phono-connector-for-phat-dac


#9

Hmm… No don’t think that will work, because the speaker is a normal hifi speaker with just a split wire and no phono…


#10

you CANNOT connect (non-powered) speakers directly to the pHAT DAC, not only is there no amp on-board but the impedance would be completely inadequate and you will damage your equipment!


#11

Well that’s a punch in the face… What do I need to build a “musicstation” with a hifi speaker and a raspberry zero then?


#12

You need a product that specifically advertises an on-board amp, such as pHAT BEAT. It sports 3W per channel, ideally suited for 4Ω speakers.

… if in doubt, read the product description. If still in doubt, ask the manufacturer (in both of these instances, this is us), and they’ll be happy to recommend alternatives if they know what equipment you are providing yourself.


#13

Ok, Thanks for the help!
:)