From ymktwo at yahoo.com  Mon Nov  1 03:08:15 2010
From: ymktwo at yahoo.com (Ymktwo)
Date: Sun, 31 Oct 2010 20:08:15 -0700 (PDT)
Subject: [Ronja] How to buy RONJA device
In-Reply-To: <AANLkTi=WZiJoaw5nLDgAmitXH24hL5LZt22kyod+enBE@mail.gmail.com>
Message-ID: <20046.39053.qm@web52402.mail.re2.yahoo.com>

Hi Parag Balbudhe
?
I would like to purchase the ronja also . 

L:ike to check if any one will be able to do it ?
Thanks 
?
pls feel free to mail me at ymktwo at yahoo.com for the quote
?
Thanks 



--- On Sun, 10/10/10, parag balbudhe <parag.balbudhe at gmail.com> wrote:


From: parag balbudhe <parag.balbudhe at gmail.com>
Subject: [Ronja] How to buy RONJA device
To: ronja at lists.pointless.net
Date: Sunday, 10 October, 2010, 11:57 AM


Hello,
??? I want to buy pair of RONJA tetrapolis, I would like to know how can i buy it?
??? How much is the price and with whom I have to contact? 
??? Device should transmit up-to 50 meters?

??? Waiting for reply... Thanks 

-- 
Thanks & Regards
Parag Balbudhe

-----Inline Attachment Follows-----


_______________________________________________
Ronja mailing list
Ronja at lists.pointless.net
http://pointless.net/mailman/listinfo/ronja


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101031/dedbf9a5/attachment.html 

From twibright at hispeed.ch  Thu Nov 11 15:46:37 2010
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Thu, 11 Nov 2010 16:46:37 +0100
Subject: [Ronja] help
Message-ID: <2564850.1289490398610.JavaMail.root@viefep15>

---- chetan cuddalore <chetancuddalore at gmail.com> schrieb:
> hello,
> regarding the explanation in the mailing list about the distance and range
> issue i had, (
> http://lists.pointless.net/pipermail/ronja/2010-October/010458.html) Would i
> also need to change the RC component in the 10M receiver as mentioned in the
> ronja website http://ronja.twibright.com/faq/short.php  or would just
> decreasing the lenses to 20mm on both the transmitter and receiver be fine?

Decreasing the lenses is fine but if you cannot find small lenses then you can combine
smaller lenses and RC or do only RC.

Karel



From russ at coldstonelabs.org  Thu Nov 11 20:46:05 2010
From: russ at coldstonelabs.org (Russell Valentine)
Date: Thu, 11 Nov 2010 14:46:05 -0600
Subject: [Ronja] help
In-Reply-To: <2564850.1289490398610.JavaMail.root@viefep15>
References: <2564850.1289490398610.JavaMail.root@viefep15>
Message-ID: <4CDC560D.2010303@coldstonelabs.org>

On 11/11/10 09:46, Karel Kulhavy wrote:
> ---- chetan cuddalore <chetancuddalore at gmail.com> schrieb:
>> hello,
>> regarding the explanation in the mailing list about the distance and range
>> issue i had, (
>> http://lists.pointless.net/pipermail/ronja/2010-October/010458.html) Would i
>> also need to change the RC component in the 10M receiver as mentioned in the
>> ronja website http://ronja.twibright.com/faq/short.php  or would just
>> decreasing the lenses to 20mm on both the transmitter and receiver be fine?
> 
> Decreasing the lenses is fine but if you cannot find small lenses then you can combine
> smaller lenses and RC or do only RC.
> 
> Karel
> 


I had wondered about this.. Why do you even need to make that change for
shorter links? Does the NE592 have too long a recovery time when the
output is saturated by having the gain to high?


Russell Valentine


From tsuport at bol.com.br  Fri Nov 12 00:19:43 2010
From: tsuport at bol.com.br (tsuport)
Date: Thu, 11 Nov 2010 22:19:43 -0200
Subject: [Ronja] Links
Message-ID: <4cdc881fefd1f_198922b8e6c1b4@winter31.tmail>

An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101111/0d7cbc72/attachment.html 

From loongyh at gmail.com  Mon Nov 15 23:52:03 2010
From: loongyh at gmail.com (loongyh)
Date: Tue, 16 Nov 2010 07:52:03 +0800
Subject: [Ronja] Swapping transmitter's "74HC04" for "7404" and receiver's
 "SFH203" for "SFH213"
Message-ID: <AANLkTinhvnSp4Y8hEcUnTNU-OM6S+dei4w0Mk98TPZzT@mail.gmail.com>

Hi,

I'm currently building Ronja Tetrapolis, and will like to check if the
abovementioned parts can be used instead, as they are the only ones
available in my area.

May I know what's the difference with or without the "HC"? From what I
sourced from wiki, HC stands for "high-speed CMOS"? Does that mean the 7404
isn't high speed?

Best Regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101116/e918bb6f/attachment.html 

From tsuport at bol.com.br  Mon Nov 22 21:33:02 2010
From: tsuport at bol.com.br (tsuport)
Date: Mon, 22 Nov 2010 19:33:02 -0200
Subject: [Ronja] New Component
In-Reply-To: <mailman.1.1289908801.6388.ronja@lists.pointless.net>
References: <mailman.1.1289908801.6388.ronja@lists.pointless.net>
Message-ID: <4ceae18e94514_3d922cede781a5@winter28.tmail>

An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101122/775644f9/attachment.html 

From gullik.webjorn at corevalue.se  Mon Nov 22 22:49:24 2010
From: gullik.webjorn at corevalue.se (Gullik =?ISO-8859-1?Q?Webj=F6rn?=)
Date: Mon, 22 Nov 2010 23:49:24 +0100
Subject: [Ronja] New Component
In-Reply-To: <4ceae18e94514_3d922cede781a5@winter28.tmail>
References: <mailman.1.1289908801.6388.ronja@lists.pointless.net>
	<4ceae18e94514_3d922cede781a5@winter28.tmail>
Message-ID: <1290466164.29010.9.camel@core-laptop>

Hmm,

At first this looks very strange, since the mentioned chip is a
quad-rs232/rs422 to usb interface. However, I can see that it can
in fact do 10 mbps. Now, this will give you a rate of 8 mbps, since
2 out of 10 bits are start / stop bits.

Also, you would have to come up with a protocol stack at each end
since Ronja / Twister is transparent Ethernet, and you will have a
relatively fast serial connection. 8 mbit SLIP??

Point to point only!! Well ronja is point-point, but can be expanded
by just plugging it into a switch ( with manual FDX).

How about data whitening / scrambling? How about idle link signalling?
I dont see this beeing a good fit to Ronja...

If you just want to eliminate twister (why??) then a 10baseT to FO
chip such as the ones from Microlinear or IC+ would make better sense.

Br

Gullik

On Mon, 2010-11-22 at 19:33 -0200, tsuport wrote:
> http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_USB-COM422-PLUS4.pdf



From tsuport at bol.com.br  Mon Nov 22 23:30:00 2010
From: tsuport at bol.com.br (tsuport)
Date: Mon, 22 Nov 2010 21:30:00 -0200
Subject: [Ronja] New Component
In-Reply-To: <mailman.1.1289908801.6388.ronja@lists.pointless.net>
References: <mailman.1.1289908801.6388.ronja@lists.pointless.net>
Message-ID: <4ceafcf8e9c0d_1dc327c9e74137@winter24.tmail>

An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101122/305692a1/attachment.html 

From loongyh at gmail.com  Wed Nov 24 20:02:53 2010
From: loongyh at gmail.com (loongyh)
Date: Thu, 25 Nov 2010 04:02:53 +0800
Subject: [Ronja] Swapping transmitter's "74HC04" for "7404" and
 receiver's "SFH203" for "SFH213"
In-Reply-To: <AANLkTinhvnSp4Y8hEcUnTNU-OM6S+dei4w0Mk98TPZzT@mail.gmail.com>
References: <AANLkTinhvnSp4Y8hEcUnTNU-OM6S+dei4w0Mk98TPZzT@mail.gmail.com>
Message-ID: <AANLkTikZxAmvOmhRfP0iQnYG_-ccDJU8BqSvkm8g5qXC@mail.gmail.com>

I've done some research and found out that the 7404 or 74LS04 cannot be used
as a replacement for 74HC04. I sourced some 74HC04s elsewhere and the
transmitter works now.

However, for test point P6, I got 4.3V when no signal at CON1 and 3.0V when
there's signal. The schematic states that P6 should be 5V and 2.5V
respectively. Thus my readings are off by around 0.5-0.7V.

Will appreciate if anyone can let me know if this is normal, or if anyone
has exprienced this before. I've tested all the test points of twister2 to
be working fine, except for P1 which has 0.57V instead of 0.67V.

On 16 November 2010 07:52, loongyh <loongyh at gmail.com> wrote:

> Hi,
>
> I'm currently building Ronja Tetrapolis, and will like to check if the
> abovementioned parts can be used instead, as they are the only ones
> available in my area.
>
> May I know what's the difference with or without the "HC"? From what I
> sourced from wiki, HC stands for "high-speed CMOS"? Does that mean the 7404
> isn't high speed?
>
> Best Regards
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101125/08889f29/attachment.html 

From ymktwo at yahoo.com  Thu Nov 25 06:29:02 2010
From: ymktwo at yahoo.com (Ymktwo)
Date: Wed, 24 Nov 2010 22:29:02 -0800 (PST)
Subject: [Ronja] How to buy RONJA device
In-Reply-To: <AANLkTi=WZiJoaw5nLDgAmitXH24hL5LZt22kyod+enBE@mail.gmail.com>
Message-ID: <826813.26187.qm@web52404.mail.re2.yahoo.com>

Hi anyone can help on purcahsing the ronja?
?
Just the ciruit board 
?
Thanks . Hope to get a reply. If interest please mail me at ymktwo at yahoo.com 
?
Thank you 


--- On Sun, 10/10/10, parag balbudhe <parag.balbudhe at gmail.com> wrote:


From: parag balbudhe <parag.balbudhe at gmail.com>
Subject: [Ronja] How to buy RONJA device
To: ronja at lists.pointless.net
Date: Sunday, 10 October, 2010, 11:57 AM


Hello,
??? I want to buy pair of RONJA tetrapolis, I would like to know how can i buy it?
??? How much is the price and with whom I have to contact? 
??? Device should transmit up-to 50 meters?

??? Waiting for reply... Thanks 

-- 
Thanks & Regards
Parag Balbudhe

-----Inline Attachment Follows-----


_______________________________________________
Ronja mailing list
Ronja at lists.pointless.net
http://pointless.net/mailman/listinfo/ronja


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://pointless.net/pipermail/ronja/attachments/20101124/6f97c552/attachment.html 

From gullik.webjorn at corevalue.se  Thu Nov 25 08:39:30 2010
From: gullik.webjorn at corevalue.se (Gullik =?ISO-8859-1?Q?Webj=F6rn?=)
Date: Thu, 25 Nov 2010 09:39:30 +0100
Subject: [Ronja] Swapping transmitter's "74HC04" for "7404" and
 receiver's "SFH203" for "SFH213"
In-Reply-To: <AANLkTikZxAmvOmhRfP0iQnYG_-ccDJU8BqSvkm8g5qXC@mail.gmail.com>
References: <AANLkTinhvnSp4Y8hEcUnTNU-OM6S+dei4w0Mk98TPZzT@mail.gmail.com>
	<AANLkTikZxAmvOmhRfP0iQnYG_-ccDJU8BqSvkm8g5qXC@mail.gmail.com>
Message-ID: <1290674370.28894.10.camel@core-laptop>

On Thu, 2010-11-25 at 04:02 +0800, loongyh wrote:
> I've done some research and found out that the 7404 or 74LS04 cannot
> be used as a replacement for 74HC04. I sourced some 74HC04s elsewhere
> and the transmitter works now.
> 
> However, for test point P6, I got 4.3V when no signal at CON1 and 3.0V
> when there's signal. The schematic states that P6 should be 5V and
> 2.5V respectively. Thus my readings are off by around 0.5-0.7V.
> 

Then you need to recheck your work. P6 is pulled up to VCC via R10,
so with no signal you should see VCC which is 5 V. With a signal, 
P6 should alternate between 0 V and 5 V at 50% duty cycle, so it
should read half VCC, i.e. 2.5 V. This is using HCmos chips, since
these drive output levels high=5 V, low = 0 V almost exactly.


> Will appreciate if anyone can let me know if this is normal, or if
> anyone has exprienced this before. I've tested all the test points of
> twister2 to be working fine, except for P1 which has 0.57V instead of
> 0.67V.
> 

You need to have a look with an oscilloscope, you should see a 50% duty
cycle waveform 0V / 1.3 V approx. Look at the scope diagram in the
schematic.
> On 16 November 2010 07:52, loongyh <loongyh at gmail.com> wrote:
>         Hi,
>         
>         I'm currently building Ronja Tetrapolis, and will like to
>         check if the abovementioned parts can be used instead, as they
>         are the only ones available in my area.
>         
>         May I know what's the difference with or without the "HC"?
>         From what I sourced from wiki, HC stands for "high-speed
>         CMOS"? Does that mean the 7404 isn't high speed?

HCMOS is an entirely different logic family than TTL / LSTTL. So, 74HC04
is the same LOGIC FUNCTION and pinout as 7404 or 74LS04, but completely
different ELECTRICAL. Do not expect this to work.


>         Best Regards
> 
> _______________________________________________
> Ronja mailing list
> Ronja at lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja




From loongyh at gmail.com  Thu Nov 25 12:07:16 2010
From: loongyh at gmail.com (loongyh)
Date: Thu, 25 Nov 2010 20:07:16 +0800
Subject: [Ronja] Swapping transmitter's "74HC04" for "7404" and
 receiver's "SFH203" for "SFH213"
In-Reply-To: <1290674370.28894.10.camel@core-laptop>
References: <AANLkTinhvnSp4Y8hEcUnTNU-OM6S+dei4w0Mk98TPZzT@mail.gmail.com>
	<AANLkTikZxAmvOmhRfP0iQnYG_-ccDJU8BqSvkm8g5qXC@mail.gmail.com>
	<1290674370.28894.10.camel@core-laptop>
Message-ID: <AANLkTinRjXhdRHpu0kZC3t3D88QPAit8DmOkFwc_uZv3@mail.gmail.com>

I see, thanks so much for the detailed explanation! :)

As I'm probably using a cheap multimeter that cannot accurately
determine AC voltages (235V instead of 230V when I used it to test the
the mains), I'll put both P1 of the twister2 and P6 of the transmitter
under an oscilloscope to verify this.

Regards

On Thursday, November 25, 2010, Gullik Webj?rn
<gullik.webjorn at corevalue.se> wrote:
> On Thu, 2010-11-25 at 04:02 +0800, loongyh wrote:
>> I've done some research and found out that the 7404 or 74LS04 cannot
>> be used as a replacement for 74HC04. I sourced some 74HC04s elsewhere
>> and the transmitter works now.
>>
>> However, for test point P6, I got 4.3V when no signal at CON1 and 3.0V
>> when there's signal. The schematic states that P6 should be 5V and
>> 2.5V respectively. Thus my readings are off by around 0.5-0.7V.
>>
>
> Then you need to recheck your work. P6 is pulled up to VCC via R10,
> so with no signal you should see VCC which is 5 V. With a signal,
> P6 should alternate between 0 V and 5 V at 50% duty cycle, so it
> should read half VCC, i.e. 2.5 V. This is using HCmos chips, since
> these drive output levels high=5 V, low = 0 V almost exactly.
>
>
>> Will appreciate if anyone can let me know if this is normal, or if
>> anyone has exprienced this before. I've tested all the test points of
>> twister2 to be working fine, except for P1 which has 0.57V instead of
>> 0.67V.
>>
>
> You need to have a look with an oscilloscope, you should see a 50% duty
> cycle waveform 0V / 1.3 V approx. Look at the scope diagram in the
> schematic.
>> On 16 November 2010 07:52, loongyh <loongyh at gmail.com> wrote:
>> ? ? ? ? Hi,
>>
>> ? ? ? ? I'm currently building Ronja Tetrapolis, and will like to
>> ? ? ? ? check if the abovementioned parts can be used instead, as they
>> ? ? ? ? are the only ones available in my area.
>>
>> ? ? ? ? May I know what's the difference with or without the "HC"?
>> ? ? ? ? From what I sourced from wiki, HC stands for "high-speed
>> ? ? ? ? CMOS"? Does that mean the 7404 isn't high speed?
>
> HCMOS is an entirely different logic family than TTL / LSTTL. So, 74HC04
> is the same LOGIC FUNCTION and pinout as 7404 or 74LS04, but completely
> different ELECTRICAL. Do not expect this to work.
>
>
>> ? ? ? ? Best Regards
>>
>> _______________________________________________
>> Ronja mailing list
>> Ronja at lists.pointless.net
>> http://pointless.net/mailman/listinfo/ronja
>
>
>
> _______________________________________________
> Ronja mailing list
> Ronja at lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja
>