Re: SolarJolla
 

So the only thing I need to check is if the phone gets too hot in direct sunlight? Nice.

Because my use case would be like: I'm on holidays and I know the batteries sometimes don't last the whole day. This is, in fact, a typical holiday problem: At home, there's a charger everywhere and I don't use the phone so much. When on holidays, I'm out all day long, no place to charge the phone, weak reception eats battery, I use both GPS and cam a lot more often than at home... Now if I could only help the battery survive the day by exposing it to bright sunlight while I'm having a break at enjoying some ice tea... that would be great.

Re: SolarJolla
 

it seems that there was a bug with the NFC drawing too much current - standby time can be 500 hours..

Re: SolarJolla
 

Thats good news!

In the solar department:

Making a solar charger is hard... Just connecting a solar panel to a dc-dc 5v converter does not work. The voltage on the solar panel will drop and no power is generated!

There needs to be a current limiting device in between. Like a buck converter. Adafruit makes this one, but it only works with 6v panels (while mine is 9v) and is too big to cram in the OH.

The dc-dc coverter I have already is really tiny, so with a tiny buck converter I am ready to go!

Re: SolarJolla
 

polling for demand

http://oi61.tinypic.com/2ry0bko.jpg

chargemon
03.09.2014 16:22:05.139 34% 40.5°C 3.81751 V -77.957 mA 4.32647 V 0.049704 V
03.09.2014 16:22:05.641 34% 40.6°C 3.81780 V -78.343 mA 4.32647 V 0.049704 V
03.09.2014 16:22:06.142 34% 40.5°C 3.81809 V -77.107 mA 4.32764 V 0.049704 V
03.09.2014 16:22:06.641 34% 40.6°C 3.81751 V -74.016 mA 4.32588 V 0.049704 V
03.09.2014 16:22:07.140 34% 40.5°C 3.81751 V -77.493 mA 4.32647 V 0.049704 V
03.09.2014 16:22:07.639 34% 40.5°C 3.81809 V -77.493 mA 4.32588 V 0.049704 V

Re: SolarJolla
 

Is it net? If so then that's actually pretty good. How sunny was it? Was the panel positioned optimally (perpendicular to the incoming sunlight) or just lying flat on the desk?

Sorry I am not buying but only because I do not have a Jolla. If I did, then this would definitely be an interesting accessory to buy. If you ever get around to make a combined solar keyboard one, that might even sway me to buy a Jolla phone :)

Re: SolarJolla
 

Net current at battery ports, actual charging current.

Re: SolarJolla
 

Need some hinges to "open" solar panel to the front.

Re: SolarJolla
 

Nice going dirkvl....I'm interested!, will you be printing in black and how much are you asking per unit?
Regards,

Re: SolarJolla
 

I am interested too. How much and what colour options?

Re: SolarJolla
 

Interesting and promising project, given the reported values. For the first time, I won't be one of the early buyer of the new OH around though. Not because I am not interested, but because so far my Jolla happens to hold the charge quite well every day, so I would not need it and I prefer using the other OHs I currently have/will have soon. :) I might be interested after the reviews, or for the kitchen sink OH someday.

Keep up the good work!

Re: SolarJolla
 

interested also, with your keyboard and solar panel

Re: SolarJolla
 

Today I made test on sun featuring dirk's solar other half and Jolla in airplane mode with my custom kernel allowing CPU going idle while charging. The phone is really charging - see attached picture.

But I guess it's still not optimal as you can see charging current between 44..71mA - i dont know how much is the panel supposed to give, but IMO it should be more. But i have still some ideas to try...

Re: SolarJolla
 

it should do more, but the phone draws a lot of power -> voltage drops a bit -> power drops (i think)

Re: SolarJolla
 

I voted: "Waiting for reviews", but I think I want to change my vote to: "Waiting for imfamous KitchenSinkTOH."
I've said it before, if you can combine 2 or more TOH's & do it well, then you'll have single-handedly made Jolla's device far more appealing than it currently is.
You also will have convinced me to finally 'jump thorough hoops' to buy a Jolla, even though it's not locally available/supported.

Oh and it's infamous, not imfamous ;)

Re: SolarJolla
 

+1

Jolla is available in my locale but I have never felt the appeal. However a combined keyboard + solar panel TOH would finally persuade me. (Oh, and I have also said it before :))

Re: SolarJolla
 

and i have answered this question before. over and over and over.

it is not really motivating when i am developing a lot of stuff and everyone is saying 'oh, if you join them all together and add battery within 2mm, then i will be interested'

<insert consuela>

Re: SolarJolla
 

TBC, I don't think anyone's suggesting that you do anything that's unrealistic/infeasible*, we realise everything you're doing now is still a learning curve.
Combining can come later, much later, if you/Jolla are still around...
Anyway, it was you that put the Kitchen-sink TOH option in the poll, hence making it a point of discussion, so you must at least be aware of the demand/interest ;)

*well, most of us anyway

Re: SolarJolla
 

so

- you know you asked earlier
- you know i answered earlier
- you know it is not going to happen
- you have already expressed your demand/interest via the poll
- you know that i am aware of the demand/interest, hence and because of the poll

but still you feel the need to express your feelings in a topic that is only about this concept and getting this concept working.

feel free to start a topic about the kitchensink-toh to poll for demand and discuss what needs to be combined, but i am not making a 200$ toh that adds 12mm to your phone.

this whole discussion is off-topic and unnecessary as it is a complete repetition of earlier statements.


anyway, more updates on the SolarTOH tomorrow (hopefully)

Re: SolarJolla
 

Sorry, I did not mean to sound demotivating, quite the opposite. Try reading my post as, "Hey, dirkvl, you are doing a fantastic job! Even I, who do not have a Jolla and never intended to buy one, am impressed so much that I am starting to consider getting one, only to have an excuse to get some of your creations!"

Better? Don't worry, I will just shut up... :o

Re: SolarJolla
 

yes, that is very motivating. but when you insert halfway 'if you combine it with %randomfunction then ...' then it is less motivation. this happens a lot. every page on every topic.

anyway, thanks for your compliment, sorry for the harsh response (i am hungry) and in the future please take all your suggestions about kitchensinking to the designated kitchensink topic.

Re: SolarJolla
 

IIRC I've seen you answer Qns like this before, but, I don't recall you saying that you don't intend to do anything like that, ever.

I didn't know it was something you're so sensitive about, I'll endeavour not to raise it again, can't promise it'll never happen, but I'll try.
Odd that it's something you'd rule-out as 'never happening', I don't think you're doing yourself a favour with such absolute thinking, but it's your project.
Some combos are completely unrealistic sure, but not necessarily others...

Anyway, I see no point in starting a dedicated KSTOH thread, that must be started by you, & your heart must be in it too.
If it's not then me starting one is a waste of time, as I won't be the one driving it, & there's no one else I'm aware of that would be.

/end off-topic

Re: SolarJolla
 

considering parts, labour, shipping, tax, development of other projects, risk and profit;

what would be a fair price for the SolarTOH?

Re: SolarJolla
 

If jolla was not burning somewhere those 80mA it would be priceless for outdoor lovers and i'd buy one if it was somewhere near 100EUR. Just my 2 cents :)

Re: SolarJolla
 

well I don't know the cost of the parts nor how long itll take to make one...

so I cant really say what price id think would be fair

personally id like it to be less than 100EUR but LOL THIS IS A SOLARTOH!!! you throw ur wallet for something like that! happy to pay the cost :D

Re: SolarJolla
 

Does it come in black? :)
http://i2.wp.com/unrealitytv.com/wp-.../08/batman.jpg

Re: SolarJolla
 

White, blue, red, purple, pink, yellow, green, orange, black, alumide

Re: SolarJolla
 

You had me at purple!!!

Re: SolarJolla
 

SolarTOH is open for pre-order

Results from 1 hour test: http://goo.gl/gzzlvN

Don't know if after pre-order campaign all colours will still be available. Delivery first half of November, primarily due to waiting on custom panels.

Re: SolarJolla
 

I'm quite possibly the target market for solar charging my phone. I spend days on end away from any power sources sometimes bicycle touring.

I don't think a SolarTOH is very useful to me.

1) it's on the back. My phone is usually facing up, on my bars with mapping running or in a bag keeping dry. It'd not get any charge.

2) I'm always moving so keeping it facing sunlight would be tricky. Also, northern Europe so not exactly guaranteed sunshine.

3) It's too small to generate enough power compared to hub generators or much larger solar panels. I use a hub generator - 6v 3w at average cycling speed which feeds a buffer battery and then delivers USB 5v.

4) You'd have to leave the phone out in the open for hours to charge which generally isn't something you want to do with expensive kit on campsites or whatever.

What I need is a mega efficient transparent solar panel on the front of the phone so you could have it face up and using it. :cool:

Re: SolarJolla
 

Hmmm... while it seems awesome for a fishing trip, I wonder about the survivability of the panels, since no cover seems to exist in current model. Are they rugged enough to not have to carry it in a separate container? (extra battery pack would then have advantage of not having to depend on weather) Will they survive normal usage? (I'm probably just paranoid, like when I heard about magnets in OH, for someone growing up with floppies magnets next to electronics seemed like crazy idea)

Re: SolarJolla
 

The cover around the panel is the highest point, so if you lay it flat on the table, the panel does not touch the surface.

The panel itself is made from a base pcb (glassfiber+epoxy) and covered in epoxy. I would say it is pretty durable and if you manage to make some scratches you have about 1mm of epoxy before you reach the photovoltaic cell, so safe to polish.

Should be fine. Would worry more about the front of your phone ;)

Re: SolarJolla
 

The screen tech is for pocket handling, not sure if those panels are, and you don't need to scratch them deep to lower their efficiency (if epoxy does get less transparent from pants fabric rubbing...) Nameday is coming soon, will give it a try.

Re: SolarJolla
 

excuse me bro dirkvl, what is the base made of? because as I can see it, it looked like, it made of styrofoam.

Sorry if I'm wrong, but the picture gives the impression of that material

Re: SolarJolla
 

Styrofoam hates printers as most adhesives dissolve styrofoam, so you should be good

Re: SolarJolla
 

??? To pay for this purchase right now, link a debit or credit card to your PayPal account, how about f*** you. Any other option for payment?

Re: SolarJolla
 

Yeah,ok, now I understand why people hate paypal, f*** them, hopefully I can get my money back without having to disclose my grandmothers'/grandfather's details

Re: SolarJolla
 

Can we have battery other half for jolla?

Re: SolarJolla
 

Unfortunately that's how paypal works, You usually do need to bare your grandfathers genitals to make them do anything for you :D

Re: SolarJolla
 

lasersintered polyamide or 'plastic'

are you okay? did it work?

my webshop does not allow for a lot of different payment methods, what do you need? you can always mail me if you have this kind of issues.

not by me (and offtopic)


they only ask me for username and pw

Re: SolarJolla
 

I got the points. My last idea for solar toh was like this:

- use like 6 flex solar cells

http://www.flexsolarcells.com/index_...le-MPT6-75.php

- normally used as screen protector

- when you want to charge phone, unroll them and put on the sun

- depending on numer of cells you get like 300mA charging current

- the TOH is used to attach cells and for charging pins

But still dirk's solar TOH could be very useful for me if Jolla had proper charging support. Btw one more problem with solar TOH: if you want to use camera and TOH is charging, the GUI is very frozen...