[Arm-netbook] laptop 15in PCB4 "stand-alone power board"

[Luke Kenneth Casson Leighton]

hi,

in order to work towards getting the laptop out in phases i'm looking
to create an intermediary design that utilises the exact same PCB1
from the laptop, exact same LCD, without the STM32F board (PCB2) and
without the battery charger board (PCB3)... which in effect makes an
"LCD monitor" when utilised with a passthrough Card or an "all-in-one
PC" when utilised with a card that has a processor in it.

a review of the (simple) schematics for PCB4 would be really useful,
although they are in fact very very simple.

please note though that i will be delaying prototyping PCB4 and PCB1
until the latest micro-desktop revision (1.7) has been prototyped and
confirmed working with its SD/MMC level-shifting. i missed that
bit... so do not wish to waste backer funds by potentially making a
mistake on the micro-desktop 1.7 PCB that's *duplicated* on laptop
PCB1.

http://hands.com/~lkcl/eoma/laptop_15in/pcb4



---
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

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[Internet]

As far as I know there are no mistakes on PCB4, I'll have a look on PCB1 during the next days.

Julius

Post by Luke Kenneth Casson Leighton
hi,
in order to work towards getting the laptop out in phases i'm looking
to create an intermediary design that utilises the exact same PCB1
from the laptop, exact same LCD, without the STM32F board (PCB2) and
without the battery charger board (PCB3)... which in effect makes an
"LCD monitor" when utilised with a passthrough Card or an "all-in-one
PC" when utilised with a card that has a processor in it.
a review of the (simple) schematics for PCB4 would be really useful,
although they are in fact very very simple.
please note though that i will be delaying prototyping PCB4 and PCB1
until the latest micro-desktop revision (1.7) has been prototyped and
confirmed working with its SD/MMC level-shifting. i missed that
bit... so do not wish to waste backer funds by potentially making a
mistake on the micro-desktop 1.7 PCB that's *duplicated* on laptop
PCB1.
http://hands.com/~lkcl/eoma/laptop_15in/pcb4
---
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
_______________________________________________
http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook

[Luke Kenneth Casson Leighton]

---
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

Post by Internet
As far as I know there are no mistakes on PCB4, I'll have a look on PCB1
during the next days.

ah cool - thanks julius. PCB4 is pretty basic (power in: that's all).
PCB3, i know for a fact that the level-shifting is missing on microsd.
VREFTTL may be anything from 1.8 to 3.3v, depending on the Card (which
provides 350mA VREFTTL)

l.