> Just make sure you keep in mind the difference between the specification and
> what is likely to be acceptable. One value is better suited to personal
> tinkering, the other to widespread propagation.
Good point. As background to my questions Turtle Art 103 now supports sensor
input.
http://
Just make sure you keep in mind the difference between the specification and
what is likely to be acceptable. One value is better suited to personal
tinkering, the other to widespread propagation.
- Ed (who was disappointed to learn this weekend that "Zener" is not in
the official Scra
>
> The published XO-1.5 spec is very conservative.
>
> But unfortunately, layout concerns prevented me from
> providing too much protection. The parts used (1/16W)
> should protect up to 9V continuously,
ignore previous mail, question answered
thats +-9V?
___
> From the XO-1.5 hardware spec at
> http://wiki.laptop.org/images/f/f0/CL1B_Hdwe_Design_Spec.pdf
>
> "2.7.4External Microphone Input
.
> An external voltage applied to this input is limited to between 0 and 3.5 V.
> Inputs exceeding this range may cause excessive current to flow thr
The published XO-1.5 spec is very conservative.
But unfortunately, layout concerns prevented me from
providing too much protection. The parts used (1/16W)
should protect up to 9V continuously, and up to
higher voltages for shorter periods of time.
With excessive voltage, the protective resistor
From the XO-1.5 hardware spec at
http://wiki.laptop.org/images/f/f0/CL1B_Hdwe_Design_Spec.pdf
"2.7.4 External Microphone Input
A stereo jack is provided on the laptop for connecting an external microphone,
switch, or other sensor. This jack is connected to the audio codec’s microphone
input,
>
> This was done starting with the XO-1.5, and will also be
> done on the 1.75.
thanks
what is the allowable input voltage, i dont think its on the wiki?
___
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This was done starting with the XO-1.5, and will also be
done on the 1.75.
Regards,
wad
On Nov 13, 2010, at 3:55 AM, fors...@ozonline.com.au wrote:
> I would like to make a request for a protection resistor between the
> microphone socket and the protection zener diode on the 1.75 so it can mo
On Mon, Nov 15, 2010 at 1:28 PM, Simon Schampijer wrote:
> The dotted activity version build.
And unleash-heldup-activity-fixes build! What a list!
cheers,
m
--
martin.langh...@gmail.com
mar...@laptop.org -- School Server Architect
- ask interesting questions
- don't get distracted with
OLPC build 10.1.3 - 353
=
The dotted activity version build.
=Builds=
http://build.laptop.org/10.1.3/xo-1/os353
http://build.laptop.org/10.1.3/xo-1.5/os353
=Description of changes in this build=
==General==
We do have 8g builds now for the XO-1.5.
==sugar==
* Adapt bun
Hey guys. Looks like Lenovo's making a major push for developers too a
la contributors' program in that they're giving away units to
developers (at the conference)
Free MeeGo IdeaPad S10-3t for developers as Intel get open-source serious
http://www.slashgear.com/free-meego-ideapad-s10-3t-for-devel
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