BMW MkIV sat nav clock won't set - Page 3

Spôôk · 16th February 2009, 07:50

Quote:

Originally Posted by hans.schaaper

Here's a 3D-model of the pcb I designed for the ibus clock.
The empty circular area to the right is where the battery holder for the 3V lithium cell is positioned. Can't find an image for that.
The board measures 48mm x 50mm approx.

[Picture]

The chip in the centre [TH3122] is the one that is difficult to source for a reasonable price.
I'm still looking, but no luck so far.
The chip top left [PIC16F88] is the 'brains' of it all, a programmable microprocessor.
The chip top right [DS1307] is a realtime clock with associated quarz and battery backup.

This circuit also works fine with the 4:3 headunit.

Will keep you posted.

Hans

Gee Hans
I think you could make a small fortune manufacturing these. I am sure nobogy would mind paying extra to have the finished product ready to install!

Why not make a thread to gather interest (like the door finishers) and see if it is worth your effort?

Preben

Jontie · 16th February 2009, 09:10

Hi Everyone,
If this works with MK3 I'd like one !!

m800rus · 19th February 2009, 19:25

Hi Hans

Thank you for throwing light on this subject and I would defiantly take 2 of the boards if you get a run going.

Best Regards

Russell

Kearton · 24th February 2009, 19:24

Quote:

Originally Posted by hans.schaaper

The circuit design is my own.
[...]
If sufficient members are interested I could have some pcb's made by a pcb shop.

Don't pin me down but I would 'guesstimate' a minimum cost of 50 euros for the board plus the parts.

Note:
The trip computer display and timer/stopwatch function on the boardmonitor should work but I can't be sure because I do not have it in my Instrument cluster.

Let me know what you think.
Hans

Please count me in too.

Kearton

Ragman · 24th February 2009, 19:50

As the list was growing I've tried to collate those who've expressed an interest, apologies if I've missed anyone. At least we have a start point.

Hans - would you like me to raise the profile of this over on the two-sixties to see if we can get the numbers up?

If it can be made to work on the Mk3 then you could be a busy man

Members expressing an interest in Hans' BMW Mk IV Sat Nav ibus clock - as of 24/02/09

juzza0 - 2 units
geoff11
pmessling
ragman
scgfull
Jontie - if works with Mk3
m800rus - 2 units
Kearton

juzza0 · 24th February 2009, 20:24

Good work Colin, there's quite a few of us then.

Ragman · 24th February 2009, 20:32

Just thought I'd pull it all together to get a clearer picture

hans.schaaper · 24th February 2009, 21:57

Hi all wanting a digital clock,

The I-bus coolant temp project has consumed a fair chunk of my financial reserve.
Nevertheless I have secured a sufficient number of PIC16F88 and DS1307 chips plus crystals for this project from various sellers worldwide.
I would prefer to wait for the delivery of a second batch of pcb's for the coolant temp project to see if they turn out OK [tricky business].
If they do [fortnight] I will order 20 clock boards.

I contacted Rolf Resler about the price for the TH3122 chip and he offered to drop his price from 10 to 6 euro a piece if I order 20 pcs a time.

About the MK4 MK3:
The clock will certainly work with the MK3 nav and also with the 4:3 boardmonitor.

GPS sync:
I need to further investigate the GPS time synchronization issue.
As I said before the circuit works fine without it [BMW doesn't have it].
The nav [both MK3 and MK4] transmits a UTC time and date message every minute. However this message lacks a flag indicating the validy of this info.
Time and date are NOT valid if the GPS is NOT locked onto satellites and computing position.

A car fitted with MK4 and BMW ULF [Bluetooth phone] forms an exception.
The nav sends a 'current position' message to the phone.
This message contains a flag indication VALID or NON_VALID position.

So guys, don't despair, will get there.

For Collin, feel free to post elsewhere, the more people interested the lower the cost.

Hans

Ragman · 24th February 2009, 22:05

Now posted on the two-sixties,

I'll collate the responses and build one list of interest parties - hopefully this will allow Hans to focus on production and cost reduction

Fishy · 25th February 2009, 22:22

Count me in, it would be a great feature to have

16th February 2009, 09:10	#22
Jontie Loves to post Rover75 2.0L Conn SE Auto Join Date: Nov 2006 Location: Barrowford near NELSON in Lancashire Posts: 456 Thanks: 15 Thanked 3 Times in 3 Posts	Hi Everyone, If this works with MK3 I'd like one !! __________________ [SIGPIC][/SIGPIC]John. (Sadly,they really don't make 'em like this anymore!!!!)

24th February 2009, 19:50	#25
Ragman This is my second home ZT 260 SE Join Date: Oct 2008 Location: Ashington, West Sussex Posts: 3,512 Thanks: 2 Thanked 1 Time in 1 Post	As the list was growing I've tried to collate those who've expressed an interest, apologies if I've missed anyone. At least we have a start point. Hans - would you like me to raise the profile of this over on the two-sixties to see if we can get the numbers up? If it can be made to work on the Mk3 then you could be a busy man Members expressing an interest in Hans' BMW Mk IV Sat Nav ibus clock - as of 24/02/09 juzza0 - 2 units geoff11 pmessling ragman scgfull Jontie - if works with Mk3 m800rus - 2 units Kearton __________________ I've learned that no matter how serious your life requires you to be, everyone needs a friend to act goofy with.

24th February 2009, 20:24	#26
juzza0 Mmm Monogram MG ZT-T++ & Rover 75 Connoisseur SE (Workhorse) Join Date: Feb 2008 Location: Nottingham Posts: 948 Thanks: 0 Thanked 1 Time in 1 Post	Good work Colin, there's quite a few of us then. __________________ [SIGPIC][/SIGPIC]

24th February 2009, 20:32	#27
Ragman This is my second home ZT 260 SE Join Date: Oct 2008 Location: Ashington, West Sussex Posts: 3,512 Thanks: 2 Thanked 1 Time in 1 Post	Just thought I'd pull it all together to get a clearer picture __________________ I've learned that no matter how serious your life requires you to be, everyone needs a friend to act goofy with.

24th February 2009, 21:57	#28
hans.schaaper Avid contributor rover 75 2.5 V6 auto Join Date: Feb 2008 Location: Alkmaar Posts: 197 Thanks: 0 Thanked 3 Times in 3 Posts	In response to Colin's post Hi all wanting a digital clock, The I-bus coolant temp project has consumed a fair chunk of my financial reserve. Nevertheless I have secured a sufficient number of PIC16F88 and DS1307 chips plus crystals for this project from various sellers worldwide. I would prefer to wait for the delivery of a second batch of pcb's for the coolant temp project to see if they turn out OK [tricky business]. If they do [fortnight] I will order 20 clock boards. I contacted Rolf Resler about the price for the TH3122 chip and he offered to drop his price from 10 to 6 euro a piece if I order 20 pcs a time. About the MK4 MK3: The clock will certainly work with the MK3 nav and also with the 4:3 boardmonitor. GPS sync: I need to further investigate the GPS time synchronization issue. As I said before the circuit works fine without it [BMW doesn't have it]. The nav [both MK3 and MK4] transmits a UTC time and date message every minute. However this message lacks a flag indicating the validy of this info. Time and date are NOT valid if the GPS is NOT locked onto satellites and computing position. A car fitted with MK4 and BMW ULF [Bluetooth phone] forms an exception. The nav sends a 'current position' message to the phone. This message contains a flag indication VALID or NON_VALID position. So guys, don't despair, will get there. For Collin, feel free to post elsewhere, the more people interested the lower the cost. Hans

19th February 2009, 19:25	#23
m800rus Newbie MG ZT-T 190+ Join Date: Oct 2008 Location: Oxfordshire Posts: 13 Thanks: 0 Thanked 0 Times in 0 Posts	Hi Hans Thank you for throwing light on this subject and I would defiantly take 2 of the boards if you get a run going. Best Regards Russell

24th February 2009, 22:05	#29
Ragman This is my second home ZT 260 SE Join Date: Oct 2008 Location: Ashington, West Sussex Posts: 3,512 Thanks: 2 Thanked 1 Time in 1 Post	Now posted on the two-sixties, I'll collate the responses and build one list of interest parties - hopefully this will allow Hans to focus on production and cost reduction __________________ I've learned that no matter how serious your life requires you to be, everyone needs a friend to act goofy with.

25th February 2009, 22:22	#30
Fishy Newbie MG ZT 260 Join Date: Feb 2008 Location: Crewe Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	Count me in, it would be a great feature to have