Other Halves Discussions on JollaTides Community Port

Other Halves Discussions on JollaTides Community Port http://www.jollatides.com/forums/categories/other-halves/feed.rss Fri, 01 Jul 16 22:45:34 +0100 Other Halves Discussions on JollaTides Community Port en-CA 3D printed TOHs and ambience http://www.jollatides.com/forums/discussion/183/3d-printed-tohs-and-ambience Wed, 18 Jun 2014 01:00:30 +0100 flypig 183@/forums/discussions
Here's the page in case anyone's interested!: http://www.flypig.co.uk/toh/]]> 3D printing - Other Halves http://www.jollatides.com/forums/discussion/68/3d-printing-other-halves Sun, 01 Dec 2013 21:26:28 +0000 Grimtech 68@/forums/discussions New work in progress (will be updated) - TOH with interchangeable camera lenses http://www.jollatides.com/forums/discussion/168/new-work-in-progress-will-be-updated-toh-with-interchangeable-camera-lenses Tue, 18 Feb 2014 19:58:40 +0000 rated 168@/forums/discussions
I've decided to work towards developing my own "Other Half" that allows for interchangeable camera lenses. I've broken the project down into stages:

Stage 1 - test out various lenses and see how they work on an existing TOH

Currently I have three lenses to try out, a wide-turn macro lens, a 2xTelephoto lens and a 180° fish eye lens. All pretty standard phone lenses which can be attached to one of my existing other halves using a stick-on metal ring (they then attach magnetically).

I'm going to be heading out tomorrow during daylight hours to take a few shots with each and see how the Jolla fares with each lens, then likewise on Friday night I'm going to get some club-life shots and see how it does in a dark atmosphere with disco lights etc (I work as a DJ in my spare time so this should be a perfect environment to test things out).

Assuming all goes well then I'll move onto stage 2 which will be to 3D print a specific TOH which allows space for a metallic ring to be fabricated in to save the need for a stick-on. I shall also (hopefully) work towards having a separate flash powered from the Jolla in the other half as the larger lenses do block use of the existing flash since it's so close to the camera.

So in the next few days (assuming it's interesting to people, if not then do tell me to sod off) I'll be uploading a few test photos and I'll continue to document my little project throughout. ]]> Any TOH I2C documentation yet? http://www.jollatides.com/forums/discussion/136/any-toh-i2c-documentation-yet Sun, 05 Jan 2014 08:43:56 +0000 Strahlex 136@/forums/discussions I would really like to create a OpenSource Dev-Kit based on the LPC17xx ARM Cortex M3 MCUs.]]> Wireless Charging http://www.jollatides.com/forums/discussion/124/wireless-charging Sat, 28 Dec 2013 22:09:00 +0000 Grimtech 124@/forums/discussions
My large original images can be found here with the password "Jollatides":

http://smg.photobucket.com/user/grimtech/library/Jolla

After reading the excellent post by "Rainisto" at Maemo.org http://talk.maemo.org/showthread.php?t=92059

I wanted to get wireless charging working on my Jolla too!

I purchased a wireless charger:
http://www.ebay.co.uk/itm/350951744680?var=620206347247&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#sthash.YRVbUkku.dpuf

and wireless S4 receiver:
http://www.ebay.co.uk/itm/231108160457?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649#sthash.YRVbUkku.dpuf

First of all I tested the receivers output voltage when placed on the pad:

Which showed a nice 5.33 Volts

Next job was finding the thinnest wires to connect the receiver to the Jolla power pins. I found the twisty ties used to tie up cables were the thinnest I had around, and the plastic cover helped guide the wires as well:

"

Before beginning I tried just the receiver sat on top of the Jolla battery and when re-fitting the other half it made the back bulge due to the thickness, and also due to the receiver being so wide from left to right:

"

I wanted my Other Half to have the least amount of bulge possible.
Whilst thinking about this problem, I set about making the wires.

First I bent the wire into tiny loops:
"

Here is the cable loop showing the its size compared to the contacts on the receiver :

I then filled the loops with solder to make flat "pads":
"

To keep the setup as thin as possible I removed the contacts from the receiver by de-soldering them:

"

After each step I put the receiver back on the pad to make sure it was still working and the voltage was still the same and nothing had gone wrong.

Next I read more about the receivers, and realized that they could be cut down without damaging the coil etc, and I took a peak inside to see how much space was around the receiver circuit:

The cut down receiver allowed it to be rotated and permit the reciever circuit to sit in the space below the Micro SD card.

The pads I made to contact the phones power pins I sat on a tiny piece of double sided foam:

The finished thing looks like this:

I put the Other Half on to the charging pad and measured the voltage again and it was still 5.3V
Now the time to fit the other half to the phone!
I did this and found a ting bulge in the middle at the top, so I removed a tiny part of the "shelf" molded into the other half that sits under the micro SD card. I also noted that the Jolla power pins were making great contact as I could see marks they had made in my soldered pads.

So time to put it back together again and try it out.

:(

When placing the re-assembled phone on to the charging pad, the blue LED that had previously come on as in the first image (and start the multi-meter showing the 5.3V) now started to flash and alternate green and blue. The charging pad comes with no instructions telling me what this means.
The phone does not show as charging.

As soon as I take the Other Half off the phone and put it on the pad, the blue light comes on and I can measure 5.3V !!!
I have tried powering the pad with many wall adapters from 500mA upto 1600mA and the same thing happens.
The receiver is rated as 600mA.
Yes I believe I do have my pads the correct way round for the +ve and -ve power pins on the phone.

My gut feeling is the cheap charging pad is the fault, and I am waiting to take my phone to a friend who has genuine Nokia charging pads to see if this helps...

Any advice would be great!?!?

Hopefully these images etc should help others make a charging Other Half.

I just cant work out why mine wont work when installed on the phone and laid on to the pad.

]]> First Customized Other Half Enables Wireless Charging On Your Jolla http://www.jollatides.com/forums/discussion/90/first-customized-other-half-enables-wireless-charging-on-your-jolla Tue, 17 Dec 2013 04:44:05 +0000 Faz 90@/forums/discussions http://thejollablog.wordpress.com/2013/12/17/first-customized-other-half-enables-wireless-charging-on-your-jolla/

Yesterday Vesa-Matti tweeted a Jolla Phone on top of the Fatboy Wireless Charging Pillow and guess what its Charging!!!. It was created by Jonni Rainisto one of Jolla’s engineers.

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