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<div class="moz-cite-prefix">Am 09.04.2013 12:14, schrieb Nikki
Gordon-Bloomfield:<br>
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cite="mid:39FB1010-07B7-4477-B7D0-BFD536947218@littlecollie.com"
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<div>Using the Bluetooth serial connection, it should be possible
for users to implement a GUI with existing smart phone
technology. <br>
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</blockquote>
<br>
Oh I forgot: yes! That's the idea behind adding Bluetooth to the
Twizplay, they could omit the LCD and use an App as the display
device.<br>
<br>
That's really a good option I think! Would also keep cost down.<br>
<br>
<blockquote
cite="mid:39FB1010-07B7-4477-B7D0-BFD536947218@littlecollie.com"
type="cite">For Twizy owners that's an added bonus. There are no
door locks, and getting in is as simple as reaching inside and
pulling the door handle.<br>
</blockquote>
...that's why most Twizplay owners currently use a special quick
lock mount just for the Twizplay -- so you need both a mount for the
display and one for your mobile phone... bad.<br>
<br>
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cite="mid:39FB1010-07B7-4477-B7D0-BFD536947218@littlecollie.com"
type="cite">
<div>Moving forward, I think it'd be great if someone in the
self-build community (You may have to work with someone else)
could produce a raw "battery pack to OVMS" module, which enables
those with converted or custom EVs to use the OVMS system using
a standard set of protocols and Can messaging -- or perhaps
direct using an add-on IO device? <br>
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</blockquote>
That would make the OVMS an option for Ebike and Escooter drivers as
well. I've got one of these:
<a class="moz-txt-link-freetext" href="http://www.emco-elektroroller.de/elektroroller/novum.html">http://www.emco-elektroroller.de/elektroroller/novum.html</a><br>
<br>
...just a simple chinese scooter, it doesn't have any data port, and
it's only display is an analog voltage meter for the overall battery
voltage -- you have to guess the SOC based on how deep the voltage
drops under load.<br>
<br>
The most simple solution would be to provide two analog I/O ports to
feed pack voltage and current (measured as voltage difference on a
shunt) into the OVMS. The A/D conversion should be fast enough to
provide at least 10 ms resolution, so we can implement an Ah counter
in software. Also some digital I/O ports should be available to
measure the distance driven (by a reed sensor mounted to a tyre) and
maybe record some other system status.<br>
<br>
So, basically the same as available solutions like the "Cycle
Analyst" or the "WattsUp" do, but with the added OVMS coolness.<br>
<br>
<br>
Regards,<br>
Michael<br>
<br>
<pre class="moz-signature" cols="72">--
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26
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