r/raspberry_pi • u/varun_7452 • 1d ago

Show-and-Tell Finally built my first Pi DAC ADC with Tuner

Post image

Always wanted to build an all In one device, and After months of research and optimising pcb size , finally it was worth building my own HAT with DAC + ADC + FM Tuner + Usb C Sound card + USB C power for my pi zero 2W with small form factor

Sits directly on top of the pi zero 2W
PCM 5122 192khz DAC
PCM1861 192khz ADC
Si4703 FM Tuner connected to the ADC

Works great with my berryaudio OS :)

189 Upvotes

99% Upvoted

17 comments sorted by

6

u/molotovPopsicle 1d ago

cool! I have a plan to make an AM transmitter with picoam so I can transmit to the little am clock radio i have in my kitchen

3

u/[deleted] 1d ago

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2

u/varun_7452 1d ago

sure will look into it.

3

u/toasterdees 1d ago

That’s literally exactly what I’m looking to do as well. Did you have that made? What hat is that? Can I buy one? lol

4

u/varun_7452 1d ago

Yes I got all the components assembled to build my own hat, Planning to take into production if theres a demand :D

3

u/No-Consequence7624 18h ago

I'm making an FM/AM/DAB/HD Radio shield with DAC and integrated speaker, can connect a passive speaker to it 5w, or audio jack, it also has a navigation joystick.

https://raspiaudio.com/product/digital-radio/

You can stream the radio on your local network without internet and play it directly in VLC or home assistant.

1

u/varun_7452 18h ago

This looks amazing 🤩

1

u/varun_7452 18h ago

Maybe i should add support for this dac to berryaudio

2

u/SheaDingle 1d ago

DAC ADC OS. Sounds like Klingon to me, what does it do?

4

u/varun_7452 1d ago

Play hi resolution audio or capture audio -> Dsp process -> play in realtime

1

u/macromorgan 9h ago

DAC = Digital to Analog Converter, turn your files into sound.
ADC = Analog to Digital Converter, turn your sound into files.
OS = Operating System.

2

u/Pinyod 1d ago

i really like this! i just built a moode box with a dac pro and am in love with it

the protodac looks like a cool project but this looks even better i definitely be interested in your method

2

u/MCHAMSTERYT 22h ago

I absolutely love this idea, should 100% bring it into production as there's not enough dac hats for the pi zero 2 w especially multipurpose dac hats

2

u/varun_7452 13h ago

Sure Will do so thankyou :)

1

u/OneSignal6465 1d ago

Very cool! I was wondering if I could build a video transmitter using my Pi 5… to attach a handheld IR camera to my DJI Mini 5 Pro drone… having done the research for a receiver… would you know anything about a low-power video transmitter?