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<p>hey luke,</p>
<p>I just wanted to put my suggestions on rhombus-tech.net but
unfortunately i couldn't figure out how to add a new subpage. to
keep everything tidy and clear this would be really helpful …</p>
<p>i also updated the specification for the pcb connectors, there
was something wrong between pcb3 and pcb1:<br>
sys-v was 4.2v directly from the battery but it is 5v and the
first pin is ground instead of usb_otg_5v0</p>
<p>i will update the other specifications as well as i walk through
the other schematics …</p>
<p>Julius Lehmann<br>
</p>
<div class="moz-cite-prefix">Am 12.02.2017 um 18:58 schrieb Luke
Kenneth Casson Leighton:<br>
</div>
<blockquote
cite="mid:CAPweEDwLGPcyw9fzFXZ7p0kXcd4m92fRUP9FD9__8HfNC2-gbg@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br clear="all">
<div>
<div class="gmail_signature">---<br>
crowd-funded eco-conscious hardware: <a
moz-do-not-send="true"
href="http://t224.mjt.lu/lnk/AEEAIEm6x_IAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYqHXBu7svXnqrQGqioHzcKxJUzQAGAjk/1/GJuXJr4EE30kGpseDsELXw/aHR0cHM6Ly93d3cuY3Jvd2RzdXBwbHkuY29tL2VvbWE2OA"
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 moz-do-not-send="true"
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
moz-do-not-send="true"
href="http://t224.mjt.lu/lnk/AEEAIEm6x_IAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYqHXBu7svXnqrQGqioHzcKxJUzQAGAjk/2/E35lvbkG1Dh_Uib7FsHh1A/aHR0cDovL3Job21idXMtdGVjaC5uZXQ" 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 moz-do-not-send="true"
href="http://t224.mjt.lu/lnk/AEEAIEm6x_IAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYqHXBu7svXnqrQGqioHzcKxJUzQAGAjk/3/x5FUHfaypHPNrYKA7pqXjw/aHR0cDovL3Job21idXMtdGVjaC5uZXQvY29tbXVuaXR5X2lkZWFzL2xhcHRvcF8xNWluL3BjYjIv">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
moz-do-not-send="true"
href="http://t224.mjt.lu/lnk/AEEAIEm6x_IAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYqHXBu7svXnqrQGqioHzcKxJUzQAGAjk/4/PLIU9yiiO54fWbRpE3PiMA/aHR0cDovL3QyMjQubWp0Lmx1L2xuay9BRU1BSHF0NFNUVUFBQUFBQUFBQUFHYkUyd2tBQVNIbEZOVUFBQUFBQUFaSGdBQllvSEZ6RnFrb2U1ajRTOFc3aHJ2R1FNQS1Cd0FHQWprLzEvTWtObklTWXI0LWhnbE9Cak02WVVxdy9hSFIwY0hNNkx5OTNkM2N1WTNKdmQyUnpkWEJ3YkhrdVkyOXRMMlZ2YldFMk9B"
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
moz-do-not-send="true"
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 moz-do-not-send="true"
href="http://t224.mjt.lu/lnk/AEEAIEm6x_IAAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYqHXBu7svXnqrQGqioHzcKxJUzQAGAjk/5/jLEjSL9RIxsci-UG9kLing/aHR0cDovL3QyMjQubWp0Lmx1L2xuay9BRU1BSHF0NFNUVUFBQUFBQUFBQUFHYkUyd2tBQVNIbEZOVUFBQUFBQUFaSGdBQllvSEZ6RnFrb2U1ajRTOFc3aHJ2R1FNQS1Cd0FHQWprLzIvMGdxYkxPcFlQVlBaem1uLVc2Zklody9hSFIwY0RvdkwzUXlNalF1YldwMExteDFMMnh1YXk5QlJITkJRVWRZZUhSb1RVRkJRVUZCUVVGQlFVRkhZa1V5ZDJ0QlFWTkliRVpPVlVGQlFVRkJRVUZhU0dkQlFsbHVlRXhCVjJSb2NUUkpUak5SWldWb1JtUlFkSE41ZUhadmQwRkhRV3ByTHpFdk9YWmxlblV3TVVsTVQyaGtTRXhEVEVOSFZUQTJRUzloU0ZJd1kwUnZka3d6U205aU1qRnBaRmhOZEdSSFZtcGhRelYxV2xoUg"
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>
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