Raspberry Pi Power supply

[Shevans]

You can get USB chassis mount sockets that fit in a round hole.

[setting son]

The IO that you need to get to is on three sides of the Pi board

[Dr Bunsen Honeydew]

You can get USB chassis mount sockets that fit in a round hole.

So a square peg will go into a round hole

[terrybooth]

Thanks for your hospitality the other night, Terry. Your system sounds stunning once a little adjustment to the 'honesty' of it is made. The Cubix do things that I've heard from no other speaker.

If you both need any help with the Pi project just let me know, I have done a few projects of boxing Pi's/DAC's with improved PSU's now including adding some hardware and associated coding* for control. Separating PSU's for the Pi and a 'plug on' DAC boards isn't as straight forward as it might seem (even if you locate it separately and not plug it on)


* Darren takes care of the coding.

Cheers. Glad you enjoyed it and thanks for the offer. I've a feeling that I will be taking you up on that. And yes, splitting the Dac board and the Pi I can see may not be an easy thing to do. However, the HiFiBerry Dac does appear to have unused sockets for power supply and an unsued connector block marked "I2S" and only appears to have one connection on the P1 header which is taken to an unused socket. If all that pans out as I hope it will it looks much easier than the IQAudio Dac boards I have.

The IO that you need to get to is on three sides of the Pi board

Yes. Plenty of room in the box for that though.

I think there's also an issue that needs to be solved to get enough power to a usb connection to power and external HDD. However, there appears to be more than one way to apply power to the Pi.
[BBvideo 425,350]http://www.youtube.com/watch?v=lGELwCXeNTs[/BBvideo]

Doc - way too early to be christening it.

Hang on - Pi Music Telecaster.

Oh! maybe not.

[Dr Bunsen Honeydew]

I am just having fun Terry. It is definitely a Pie and not a Pi

[terrybooth]

My first experiment.

Separate the HiFiberry from the Pi. According to HiFiberry, only the connections on the P5 header are used. This means that there are potentially 8 active connections, as follows.

Pin 1 5v
Pin 2 3.3 v
Pins 3 to 6 - Data connections GPIO connection in Raspeberry pi terms.
Pins 7 and 8 0v (Ground)

On various websites I've found the the 3.3v connection is not used.

I cannibalised a short connect from a PC however this has only 7 connectors in it, so I didn't connect Pin 2. Result - nothing. The Pi came up and I could control it and tell it to play something but no sound. Remove the interconnect I made up (i.e. put the Pie back together) and I have sound.

Net result for today: one old PC which will boot no more. Ah well.

[Dr Bunsen Honeydew]

Have fun if you don't ever fail you can't ever learn

[terrybooth]

The idea is to get this bit to work and then connect the power and separately from the Pi ( sorry Pie) i.e. two power supplies (wall warts) supplying the Pi and the Dac board separately.

Once I've proven that, it's a trip dahn sarf.

[_D_S_J_R_]

Is there the noisy environment in the Pi plus berry that needs to have them separated? I mean, no cheap smps to electrically interfere and if the single wallwart was replaced with a 'Doc' alternative heavy duty one, wouldn't this be better than two wallwarts?

Just a thought..

[terrybooth]

The twin walwarts are a proof of concept, not a final position.