[Arm-netbook] Open source Allwinner R40 circuit diagrams

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sun May 13 22:07:52 BST 2018

On Sunday, May 13, 2018, joem <research at enemygadgets.com> wrote:

> > SK Hynix H5TQ4G83AFR = 512M x 8
> > 27 RMB that means EIGHTEEN dollars just in RAM ICs.   that's if you
> > can get hold of them.
> RAM continues to be a problem to source.

I did tell / warn you.... :)

> KiCAD version of R40 server board on a go slow pace at the moment -
> https://hellosemi.com/hypercube/pmwiki.php?n=Main.KiCADServerBoard
> (Some errors have left the power lines crossed in multiple places.)
> Also can't seem to raise Allwinner (no replies). Probably manage without
> tech support for now.

Yehh thats not a surprise, are you placing an order for 100k units? Then
they might reply

> In the mean time, been doing other KiCAD boards.
> A blue pill (ST clone of Atmega Arduino) -
> https://hellosemi.com/hypercube/pmwiki.php?n=Main.
> HypercubeBluePillSTDuinoBoard
You seen the board i did , right? Stl470? Akso can fund st cimmunity link
for you they should be a long way along by now. Small form factor v
cgallengung to get cost down.

 2 layer st arduino clones are really tough to do

> There is some infographic here about how to make intelligent Lithium
> battery packs for autonomous systems -
> https://hellosemi.com/hypercube/pmwiki.php?n=Main.
> HypercubeLithiumPrototypingBoard
> And some info here about R40 boards for modularized AI + vision
> recognition and getting it to do some work with Arduino to do basic IoT
> work with it -
> https://hellosemi.com/hypercube/pmwiki.php?n=Main.AIBoards
> All the other open source boards (or soon to be)
> https://hellosemi.com/hypercube/pmwiki.php?n=Main.OpenSourceBoards
> --

Thx joe

> JoeM
> Twitter - https://twitter.com/HelloHypercube
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