<div dir="ltr"><br><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature">---<br>crowd-funded eco-conscious hardware: <a href="https://www.crowdsupply.com/eoma68" target="_blank">https://www.crowdsupply.com/eoma68</a><br></div></div>
<br><div class="gmail_quote">On Sun, Feb 12, 2017 at 2:30 PM, Internet <span dir="ltr"><<a href="mailto:internet@devpi.de" target="_blank">internet@devpi.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
First look at PCB3 is finished, it is of course possible I am
missing something. Anyways, following caught my eyes:<br>
<ol>
<li>the usb otg charger ic has two capacitors between regn and
ground, total value: 11.5uF, datasheet says 1uF. probably no
issue though</li>
<li>10k thermistor for the otg charger is connected to voltage
divider and through another thermistor to bat-v (fuel guage),
datasheet says it should be connected to ground (i am not to
sure about the guage though, reference application is pretty
chaotic and complex)</li>
<li>status leds should be connected to sys-v (nothing to do if
dvcc = sys-v)</li>
<li>EOMA68-5V0 is not connected to anything, this results in an
unpowered card on pcb1 (which is bad); should probably be
connected to vcc-5v0)</li>
<li>level shifter is completely unnecessary because lcd-vcc =
vrefttl = 3v3; connect 10k pullup resistors to vrefttl and add
pullup for chg_irq to vrefttl</li></ol></div></blockquote><div>TI bat IC is 1.8v.. wasn't happy with that.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><ol>
<li>because eoma68-i2c is not used on this pcb remove pullups</li></ol></div></blockquote><div><br></div><div>_great_. encourages me to take a look and check.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><ol>
</ol>
<p>I hope this helps and if I misunderstood something, please let me
know. The fuel guage circuit is more complex than expected, I let
you know if there is an issue.</p>
<p>Do you want me to put all this on <a href="http://rhombus-tech.net" target="_blank">rhombus-tech.net</a>? If so, could
you give me some instructions where and how to put it?
</p></div></blockquote><div><br></div><div><a href="http://rhombus-tech.net/community_ideas/laptop_15in/pcb2/">http://rhombus-tech.net/community_ideas/laptop_15in/pcb2/</a> then just work it out, put whatever you feel is appropriate and i'll review it and move / adjust if necessary.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><p> Additionally, to edit the pages I need some kind of account
creation password …</p></div></blockquote><div><br></div><div>ah! sorry, i added that recently after there were attacks on the page -- it's "passwordreqd"</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF">
<p>Julius Lehmann<br>
</p><div><div class="gmail-h5">
<br>
<div class="gmail-m_-4268378476282813533moz-cite-prefix">On 11.02.2017 15:00, Luke Kenneth
Casson Leighton wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="gmail-h5">
<div dir="ltr"><br>
<div class="gmail_extra"><br clear="all">
<div>
<div class="gmail-m_-4268378476282813533gmail_signature">---<br>
crowd-funded eco-conscious hardware: <a href="http://t224.mjt.lu/lnk/AEMAHqt4STUAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYoHFzFqkoe5j4S8W7hrvGQMA-BwAGAjk/1/MkNnISYr4-hglOBjM6YUqw/aHR0cHM6Ly93d3cuY3Jvd2RzdXBwbHkuY29tL2VvbWE2OA" target="_blank">https://www.crowdsupply.com/<wbr>eoma68</a><br>
</div>
</div>
<br>
<div class="gmail_quote">On Sat, Feb 11, 2017 at 1:33 PM,
Internet <span dir="ltr"><<a href="mailto:internet@devpi.de" target="_blank">internet@devpi.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">You are absolutely right. Putting comments
separately is the best thing to do. I just found the
edit button on <a href="http://t224.mjt.lu/lnk/AEMAHqt4STUAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYoHFzFqkoe5j4S8W7hrvGQMA-BwAGAjk/2/0gqbLOpYPVPZzmn-W6fIhw/aHR0cDovL3QyMjQubWp0Lmx1L2xuay9BRHNBQUdYeHRoTUFBQUFBQUFBQUFHYkUyd2tBQVNIbEZOVUFBQUFBQUFaSGdBQllueExBV2RocTRJTjNRZWVoRmRQdHN5eHZvd0FHQWprLzEvOXZlenUwMUlMT2hkSExDTENHVTA2QS9hSFIwY0RvdkwzSm9iMjFpZFhNdGRHVmphQzV1WlhR" target="_blank">rhombus-tech.net</a> ;), this should
definitely make things easier ...<br>
</div>
</blockquote>
<div><br>
</div>
<div> yay, magic. also stops duplication and AOL-style
me-too postings. if anyone remembers the AOL bbs...</div>
<div><br>
</div>
<div>l.</div>
</div>
</div>
</div>
<br>
<fieldset class="gmail-m_-4268378476282813533mimeAttachmentHeader"></fieldset>
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