Openmoko - User contributions [en]

Talk:Openmoko Local Groups: London

2009-01-16T13:21:49Z

Jhenkins:

Welcome!

Hopefully there will be a few Neo owners out there who fancy meeting up in a central London location to discuss all things Neo over a few pints!

I guess Suffolk counts as near(ish) to London? I doubt there is anyone else in my bit of the country with one - [[User:Phlash|Phil]]

------

Okay so who is up for a beer?

[[User:jptmoore|zedstar]]

------

I'm sure I could be persuaded! Anyone want to suggest a date/location? Anywhere central London on a week night would be good for me.

[[User:leekb|Lee]]

----

Date stamp: Fri Jan 16 12:24:32 GMT 2009

Shall we organise a pub meet? It would be grand if we could. I'll shake the cage a bit on the list, please indicate your willingness below.

[[User:jhenkins|Jan Henkins]]

----

'''[[Reccommended London pubs]]'''

'''Area:''' Central London

'''Pub:''' The Dove Inn (Hammersmith)

'''Description:''' Fantastic for small huddles or BoF sessions, although I would say 8 people (10 or 12 at an absolute push with pre-booking) would be a comfortable maximum size for a group. Picturesque old medieval pub right on the Thames.

'''Website:''' [http://www.beerintheevening.com/pubs/s/15/159/Dove_Inn/Hammersmith The Dove Inn]

'''Referrer:''' [[User:jhenkins|Jan Henkins]]

Talk:Openmoko Local Groups: London

2009-01-16T13:03:59Z

Jhenkins:

Welcome!

Hopefully there will be a few Neo owners out there who fancy meeting up in a central London location to discuss all things Neo over a few pints!

I guess Suffolk counts as near(ish) to London? I doubt there is anyone else in my bit of the country with one - [[User:Phlash|Phil]]

------

Okay so who is up for a beer?

[[User:jptmoore|zedstar]]

------

I'm sure I could be persuaded! Anyone want to suggest a date/location? Anywhere central London on a week night would be good for me.

[[User:leekb|Lee]]

----

Date stamp: Fri Jan 16 12:24:32 GMT 2009

Shall we organise a pub meet? It would be grand if we could. I'll shake the cage a bit on the list, please indicate your willingness below.

[[User:jhenkins|Jan Henkins]]

----

'''Reccommended London pubs'''

Area: Central

The Dove In - Hammersmith

Fantastic for small huddles or BoF sessions, although I would say 8 people (10 or 12 at an absolute push with pre-booking) would be a comfortable maximum size for a group. Picturesque old medieval pub right on the Thames.

Website: [http://www.beerintheevening.com/pubs/s/15/159/Dove_Inn/Hammersmith The Dove Inn]

Talk:Openmoko Local Groups: London

2009-01-16T12:26:41Z

Jhenkins:

Talk:Openmoko Local Groups: London

2009-01-16T12:26:15Z

Jhenkins:

Neo FreeRunner Battery

2009-01-01T22:31:39Z

Jhenkins: /* More tricks */

{{Neo FreeRunner Menu}}
=== GTA02 1200 mAh Smart Battery ===

*Internally, uses the SANYO 1200mAh cell (note that the Sanyo cell by itself does not have the Coulomb-counter and thus can not be used as a replacement for the Neo FreeRunner battery)
*Battery Technical information: [http://people.openmoko.org/tony_tu/GTA02/hardware/GTA02/CT-GTA02.pdf Detailed Battery Information]

* 1200mAh Smart Battery with Coulomb-counter and protection circuit
* The Smart Battery keeps track of maximum and current capacity for precise prediction of remaining battery power and time until shutdown, based on actual power dissipation.

For more information, see the GTA01 battery info at [[Neo1973 Battery]]

=== Notes about expected battery life ===
Battery life is a work in progress. The power saving software is in a very rudimentary state. At the moment 12h is about the most (note though a [http://lists.openmoko.org/pipermail/community/2008-July/020339.html recent result of at least 21h], mostly in suspend, with multiple short wakeups, on the predecessor device GTA01). A week standby and 6 hours talk, 20 hours mp3 might be attainable when power saving software is complete.

== Known Issues ==

=== Make sure your battery never discharges completely. ===

This is an issue because the internal charging circuitry can not be turned on until the FreeRunner has booted, and booting through USB power alone does not work.

==== What to do if your battery has become completely discharged ====

See the workarounds [[Neo_FreeRunner_Hardware_Issues#Can.27t_boot_with_discharged_or_missing_battery|here]].

==== More tricks ====

''Q: Does anyone know WHY it don't charge when it is off? My logic says that it is very important to have the option charge the battery when it is flat.''

A: I can't give you a simple answer. Charging is controlled by the PCF50633
chip, based on configuration values that are written to it by u-boot,
Linux, and userspace programs. Some of these settings are preserved
across a power-cycle (the PCF50633 has a small backup battery that's
also used to keep the RTC running) so the behavior at startup depends on
the software that you used during your last session.

Another complication is that some Freerunners are capable of starting up
without a battery while others are not (possibly due to different
capacitor values on the internal power rails).

I can give a few hints:
* The current (Sep. 2nd, 2008) u-boot has a bug that means it will not properly charge from the wall charger. Try a USB cable into a PC instead.
* Try booting through NOR u-boot instead (hold aux and then power) with both the wall charger or a 500mA USB connection, then try booting Linux.
* Try to boot into the NAND u-boot menu (hold power and then aux) and then select "power off". This may leave the device in a state were it will charge. Wait 15 minutes and then try to boot Linux.
* If the device shuts off during one of the above attempts, let it sit for a few minutes and then try that same item once again

Kudos to Mike Montour on the
[http://lists.openmoko.org/pipermail/community/2008-September/029243.html Community mailing list].

Another trick to get a Freerunner with a flat battery up and running would be to press and hold AUX, and then plug in the wall charger. Suggested by user [http://wiki.openmoko.org/wiki/User:Azmodie azmodie], confirmed to work by user [http://wiki.openmoko.org/wiki/User:Jhenkins jhenkins].

== Compatible Replacement Batteries ==

Other known FreeRunner-compatible batteries include the BL-series (BL-4X, BL-5X) from Nokia, and their third-party equivalents.
These may not work to revive a device and may not report charge information.
It is probably a good idea to check that your battery is not greater than the stock battery's voltage of 3.7V (the above suggests that 4.5VDC should be fine) unless you know what you are doing.

{| border="1" cellpadding="4" cellspacing="0"
!Battery Model
!Capacity (mAh)
!Charge info reported
!Notes
|-
|NOKIA BL-4
|
|no
|
|-
|NOKIA BL-4C
|750
|no
|Slightly thinner than original.
|-
|NOKIA BL-5B
|760/890
|
|
|-
|NOKIA BL-5C
|950
|no
|
|-
|NOKIA BL-6C
|1070
|no
|
|-
|NOKIA BR-6C
|?
|no
|
|-
|Garmin GPS 10x
|1100
|no
|
|}

== Alien Charging of Battery ==

Nokia devices (phones and stand-alone chargers) usually will not charge
non-Nokia batteries, most likely because they can't be sure they have
the correct charging parameters (and of course Nokia isn't interested in supporting use of alien batteries with their phones).

Most after-market or no-name brands of Nokia-compatible chargers don't
test the make of the battery, most likely because adding the capability
to perform this test would add to the cost of the charger and limit it's universal character (that's not the interest of second source manufacturers).

Thus:
* You can use a Nokia or Nokia-compatible BL-4C, BL-5C, or BL-6C in the Neo
* You can charge the Neo battery in a Nokia-compatible charger that is not Nokia branded
* You can NOT charge the Neo battery in a Nokia branded phone or charger

Alternatively, the Garmin GPS 10X, a Bluetooth GPS device, uses a compatible battery to the OpenMoko FreeRunner. The device can be used to charge FreeRunner batteries at 100mA, 500mA or 1A over miniUSB (including deep-discharged batteries).

For more information about USB battery chargers that can be used with the Neo FreeRunner see
{{main|USB charger}}

== DIY external battery pack from a Minty case ==

'''Mintyboost:'''

Charge from a couple of AA batteries: [http://www.ladyada.net/make/mintyboost/ Minty Boost!], [http://www.millions.ca/~stacy/mintyboost/ report on a Neo FreeRunner application].

Adding the 47k resistor to the minty boost so that the Freerunner fast charges at 1A is a poor idea for a couple reasons, the biggest one being that the minty boost can't supply 1A the max is 600mA. as far as I know, there is no magic resistor to identify a 500mA charger to the Freerunner, it depends on USB host telling it that it can provide 500mA. Second, the ID pin is in the USB micro connector, so you would either need to put a micro connector on your minty boost (with the correct resistor installed) or use a hacked cable.

Even if the Linear Technology step up voltage converter is supposed to be able to do 600mA, the AA cells seem to have a problem with supplying 500mA. They get a little toasty :-). One powerpack built using D cells doesn't seem to have any issues with supplying 500mA.

[[Category:Battery]]
[[Category:Neo FreeRunner Hardware]]

Openmoko Local Groups: London

2008-12-22T13:33:03Z

Jhenkins:

Welcome to Openmoko London!

Beer and Neo anyone?

See [[Talk:Openmoko_Local_Groups:_London|discussion]]

{|border=1
!Name (IRC nick)
!Skills
!Interest
!Location
!Device owned
|-
|[[User:jptmoore|John Moore]] (zedstar)
|C/Scheme
|Application development
|Pinner
|[[Image: Moko.jpg|center]]
|-
|Alex
|Java,Perl,Python
|User & developer
|Hampshire
|
|-
|[[User:Phlash|Phil Ashby]]
|C/C++/Java /Embedded/Hardware
|Kernel & Application development
|Felixstowe
|[[Image: Moko.jpg|center]]
|-
|John Cass
|Java,C
|User & developer
|London
|[[Image: Moko.jpg|center]]
|-
|[[User:TonyGarnockJones|Tony Garnock-Jones]] (tonyg)
|C, assembly, Erlang, Scheme, ML, Haskell, Smalltalk, ...
|User & developer
|London
|[[Image: Moko.jpg|center]]
|-
|[[User:ThomasWood|Thomas Wood/OpenedHand]]
|C, GTK+ developer
|User & developer
|London
|[[Image: Moko.jpg|center]] [[Image: MokoBox.jpg|center]] + GTA02 (FreeRunner Prototype)
|-
|[[User:Stephmw|Steph Meslin-Weber]]
|Java (J2ME), C, User Experience, Interface prototyping
|User, developer and general busybody
|London
|-
|[[User:WebJames|James Olney]]
|General experience
|User
|Oxford
|Wanted FreeRunner perhaps get into a 10pack group]
|-
|[[User:Jhenkins|Jan Henkins]]
|Sysadmin, general repo management, a bit of C\C++, Perl
|User
|London
|FreeRunner
|-
|[[User:chrestomanci|David Pottage]]
|Perl, Java (J2se), C
|User & developer
|Reading
|FreeRunner
|-
|[[User:vermoos|Michael Nandris]]
|Python/Plone ethusiast, interest in DPA (1998)
|User, developer
|London, Camden
|Wanted FreeRunner perhaps get into a 10pack group]
|-
|[[User:Weiss|Weiss]]
|C, GTK+, ARM Assembly, Perl, TCL
|User, developer
|Cambridge
|FreeRunner
|-
|[[User:TimW|TimW]]
|C++
|User, developer
|Pinner
|FreeRunner
|-
|[[User:Menno|Menno Smits]]
|Python, C, GTK+
|User, apps development
|London
|FreeRunner
|-
|[[User:Bspencer|Ben Spencer]]
|C, perl, ARM assembler
|User, developer, beer drinker
|London
|FreeRunner
|-
|[[User:David_Hicks|Dave]]
|C, SSL/TLS, POSIX threading
|User, apps development
|London
|FreeRunner
|-
|Tina
|User, Sys Admin
|User (can compile, maybe port)
|Oxford
|FreeRunner
|-
|[[User:gnublade|Andy Kilner]]
|Python, C, GTK+
|User, Developer
|London
|FreeRunner
|-
|[[User:Vortex|Vortex]]
|C, toolchains, distributions
| mesh networking, service discovery, wifi, bluetooth, scanning, gps
|London
|FreeRunner
|-
|[[User:leekb|Lee Khan-Bourne]]
|C,Java,Perl
|User & developer
|London/Kent
|FreeRunner
|-
|-|}
Key:
[[Image: Moko.jpg]] = GTA01
[[Image: MokoBox.jpg]] = Debug board

[[Category:Openmoko Local Groups]]

User:Jhenkins

2008-12-22T13:32:40Z

Jhenkins:

Jhenkins

E-mail: jan dot henkins at NOSPAMgmail dot com

Hardware: FreeRunner

Openmoko Local Groups: London

2008-12-22T13:18:01Z

Jhenkins:

Welcome to Openmoko London!

Beer and Neo anyone?

See [[Talk:Openmoko_Local_Groups:_London|discussion]]

{|border=1
!Name (IRC nick)
!Skills
!Interest
!Location
!Device owned
|-
|[[User:jptmoore|John Moore]] (zedstar)
|C/Scheme
|Application development
|Pinner
|[[Image: Moko.jpg|center]]
|-
|Alex
|Java,Perl,Python
|User & developer
|Hampshire
|
|-
|[[User:Phlash|Phil Ashby]]
|C/C++/Java /Embedded/Hardware
|Kernel & Application development
|Felixstowe
|[[Image: Moko.jpg|center]]
|-
|John Cass
|Java,C
|User & developer
|London
|[[Image: Moko.jpg|center]]
|-
|[[User:TonyGarnockJones|Tony Garnock-Jones]] (tonyg)
|C, assembly, Erlang, Scheme, ML, Haskell, Smalltalk, ...
|User & developer
|London
|[[Image: Moko.jpg|center]]
|-
|[[User:ThomasWood|Thomas Wood/OpenedHand]]
|C, GTK+ developer
|User & developer
|London
|[[Image: Moko.jpg|center]] [[Image: MokoBox.jpg|center]] + GTA02 (FreeRunner Prototype)
|-
|[[User:Stephmw|Steph Meslin-Weber]]
|Java (J2ME), C, User Experience, Interface prototyping
|User, developer and general busybody
|London
|-
|[[User:WebJames|James Olney]]
|General experience
|User
|Oxford
|Wanted FreeRunner perhaps get into a 10pack group]
|-
|[[User:Jhenkins|Jan Henkins]]
|Sysadmin, general repo management, a bit of C\C++, Perl
|User
|London
|Freerunner
|-
|[[User:chrestomanci|David Pottage]]
|Perl, Java (J2se), C
|User & developer
|Reading
|FreeRunner
|-
|[[User:vermoos|Michael Nandris]]
|Python/Plone ethusiast, interest in DPA (1998)
|User, developer
|London, Camden
|Wanted FreeRunner perhaps get into a 10pack group]
|-
|[[User:Weiss|Weiss]]
|C, GTK+, ARM Assembly, Perl, TCL
|User, developer
|Cambridge
|FreeRunner
|-
|[[User:TimW|TimW]]
|C++
|User, developer
|Pinner
|FreeRunner
|-
|[[User:Menno|Menno Smits]]
|Python, C, GTK+
|User, apps development
|London
|FreeRunner
|-
|[[User:Bspencer|Ben Spencer]]
|C, perl, ARM assembler
|User, developer, beer drinker
|London
|FreeRunner
|-
|[[User:David_Hicks|Dave]]
|C, SSL/TLS, POSIX threading
|User, apps development
|London
|FreeRunner
|-
|Tina
|User, Sys Admin
|User (can compile, maybe port)
|Oxford
|FreeRunner
|-
|[[User:gnublade|Andy Kilner]]
|Python, C, GTK+
|User, Developer
|London
|FreeRunner
|-
|[[User:Vortex|Vortex]]
|C, toolchains, distributions
| mesh networking, service discovery, wifi, bluetooth, scanning, gps
|London
|FreeRunner
|-
|[[User:leekb|Lee Khan-Bourne]]
|C,Java,Perl
|User & developer
|London/Kent
|FreeRunner
|-
|-|}
Key:
[[Image: Moko.jpg]] = GTA01
[[Image: MokoBox.jpg]] = Debug board

[[Category:Openmoko Local Groups]]

User:Jhenkins

2008-12-22T13:10:17Z

Jhenkins: New page: Jhenkins Hardware: Freerunner

Jhenkins

Hardware: Freerunner