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RedPitaya 125-10 : Dimensions & Schematics - where are they

Posted: Wed Feb 01, 2017 2:06 pm
by mjdbishop
I have a 125-10, the "new" RedPitaya Lite on my bench and running.

Mechanical drawings and schematics don't seem to have been posted to the internet.

The v1.1 / 125-14 pdfs don't answer 125-10 specific questions; e.g. the locations of the Uart0 Gnd/Tx/Rx holes.

VMTiA

DrB

Re: RedPitaya 125-10 : Dimensions & Schematics - where are t

Posted: Fri Feb 10, 2017 1:30 am
by Nils Roos
Hi,
the schematics have just been published here.

Re: RedPitaya 125-10 : Dimensions & Schematics - where are t

Posted: Fri Feb 10, 2017 11:55 am
by mjdbishop
Hi Nils

Thank you for the schematics, very much appreciated.

They confirm the Uart0 plumbing and explain the battery connector - I presume the battery 5V routes through the protection circuitry (i.e. it's tracked to the uUSB 5V pin).

If the dimensioned assembly drawings will be available soon, skip the following, otherwise pse advise the design values for:
- offsets to (Uart0) CN7 p1 from a datum ? I recon 23.6 mm from the fixing hole centre and 7 mm from the card edge
- offsets to (BAT) CN8 from a datum ?
- "obviously" the PTH are on 100 mil pitch

VMTiA; Best Regards DrB

Re: RedPitaya 125-10 : Dimensions & Schematics - where are t

Posted: Fri Feb 10, 2017 1:44 pm
by Nils Roos
Now there's also the 3D model, see the corresponding section of the docs.

Re: RedPitaya 125-10 : Dimensions & Schematics - where are t

Posted: Mon Feb 13, 2017 10:27 am
by mjdbishop
Hi Nils

I had noticed the step file lurking in the same directory, and have now used it to "take" the measurements.

A couple of comments from opening the step file with TurboCad 17 - very much your father's CAD:
- the file opens in Imperial (inch) units with inch for mm
- the model etc is initially invisible and the zoom scale / pan quite wrong
- the 0.1" pitch PTH only have an outline, not centre lines which makes snaping to them triksy

With 1-1 hindsight, the drill file for the bigger holes might have been an easier way to extract these dimensions.

FWIW my measurements of CN7 & 8 wrt the corner M3 fixing are:
CN7 (232) X 23.45 mm Y 4 mm (a 150 um delta in X from the original measurement on a CNC machine using a laser pointer to centre both holes)
CN8 (BAT) X 6.07 Y 1.05 mm

Again, Many Thanks; Best Regards DrB