Date   

Re: request for clarification of all IC's in T41-EP #t41-ep

Mark Hatch
 

Can I make a request that “hard to find parts” or “long lead time parts” (ie shipping from Asia) be marked with an “*” (or some other manner). My plan is to get all the hard to buy or long wait parts in one box and then make the final (ha, ha) digikey order. I know some are obvious (fortunately I have a 5” screen I can repurpose from my jackal effort)  but I suspect that a lot of the larger chips might be a lot of fun to track down.


Just want to leverage the backs of the pioneers here with all the arrows in their back. :-). 


73
Mark
AJ6CU


Re: T41 Parts ID

Glenn
 
Edited

Many thanks Jack. All OK now.

 

glenn

vk3pe

 


Does Spiderman have a Teensy Weensy 3.2 Brain?

Tom, wb6b
 

As interesting video about Disney stunt robots.
This is in honor of the recent Disneyland Spiderman fail.

https://youtu.be/oyXl3IhonRM?t=88

Tom, wb6b


Re: request for clarification of all IC's in T41-EP #t41-ep

David Matthews
 

I didn't look as I was going with the data Jack had published before and I knew that there were revisions needed to that data.

I hadn't seen an announcement for an upload of the bom with digikey part numbers, probably because it is on Google docs instead of in the files section with the rest of the docs.  When did it go up?

Dave
W2IJL


On Wed, Jun 15, 2022, 22:29 Jim Manley <jim.manley.mscs@...> wrote:
The spreadsheet already exists, and it even includes part numbers from Digikey and Tayda!  Just copy the vendor part number and quantity columns into a sheet that can then be uploaded on the vendor site to create an order.

Gee, if only people used the search function, if they don’t take the time to follow the thread about the BOM …


Jim  KJ7JHE


On Wed, Jun 15, 2022 at 8:10 PM jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

Jim Manley
 

BTW, per message 15604, the spreadsheet is from Josh Wood (W0ODJ) and he’s trying to keep it up-to-date with changes as they may be posted.


Jim  KJ7JHE


On Wed, Jun 15, 2022 at 8:31 PM jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Thanks, Jim.

Jack, W8TEE

On Wednesday, June 15, 2022 at 10:29:37 PM EDT, Jim Manley <jim.manley.mscs@...> wrote:


The spreadsheet already exists, and it even includes part numbers from Digikey and Tayda!  Just copy the vendor part number and quantity columns into a sheet that can then be uploaded on the vendor site to create an order.

Gee, if only people used the search function, if they don’t take the time to follow the thread about the BOM …


Jim  KJ7JHE


On Wed, Jun 15, 2022 at 8:10 PM jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

jjpurdum
 

Thanks, Jim.

Jack, W8TEE

On Wednesday, June 15, 2022 at 10:29:37 PM EDT, Jim Manley <jim.manley.mscs@...> wrote:


The spreadsheet already exists, and it even includes part numbers from Digikey and Tayda!  Just copy the vendor part number and quantity columns into a sheet that can then be uploaded on the vendor site to create an order.

Gee, if only people used the search function, if they don’t take the time to follow the thread about the BOM …


Jim  KJ7JHE


On Wed, Jun 15, 2022 at 8:10 PM jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

Jim Manley
 

The spreadsheet already exists, and it even includes part numbers from Digikey and Tayda!  Just copy the vendor part number and quantity columns into a sheet that can then be uploaded on the vendor site to create an order.

Gee, if only people used the search function, if they don’t take the time to follow the thread about the BOM …


Jim  KJ7JHE


On Wed, Jun 15, 2022 at 8:10 PM jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

David Matthews
 

I couldn't make the previous files convert to a table.  I suspect that the bom tables were images inserted into the pdf.  Usually I can grab rows out of tables in pdf files.

I'm happy to convert to spreadsheets if I can get at the data in the bom.

Dave
W2IJL


On Wed, Jun 15, 2022, 22:10 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

jjpurdum
 

Dave:

Sounds like you have experience with it. Why not do the conversion and share with everyone else here?

Jack, W8TEE

On Wednesday, June 15, 2022 at 09:52:57 PM EDT, David Matthews <n36078@...> wrote:


I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

David Matthews
 

I am hoping that the bom will be released as a spreadsheet or some other selectable table format.  My Linux tools wouldn't do anything with what was in the PDFs in the first release.  I use the spreadsheet to keep track of the build.  Color the part ids of the parts in the bag and color the rest of the row when they are soldered in.

Dave
W2IJL

On Wed, Jun 15, 2022, 21:46 jjpurdum via groups.io <jjpurdum=yahoo.com@groups.io> wrote:
Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: request for clarification of all IC's in T41-EP #t41-ep

jjpurdum
 

Doug:

Please bear with us. Al has redone the BOMs and I will be posted everything in about 2 days.

Jack, W8TEE

On Wednesday, June 15, 2022 at 05:37:03 PM EDT, Doug W <dougwilner@...> wrote:


I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


File /T41 Boards Group Buy/T41 Board Count 061522 1720.pdf uploaded #file-notice

Group Notification <noreply@...>
 

The following files and folders have been uploaded to the Files area of the SoftwareControlledHamRadio@groups.io group.

By: K9HZ <bill@...>

Description:
Latest T41 project board group buy. The QC test sets of 10 sets will arrive June 17. Full orders for 250 board-sets will take place immediately after we pass the QC test sets. Check the file for latest announcements and orders. Board stuff will not be posted in the IO group msgs. I have an extra board-set from the QC order. If you would like to be part of the QC group and get your board set early (slightly higher cost), please contact me directly. Group buy board sets will be shipped anywhere in the world when you pay the shipping... 100W module boards will be offered in the next buy cycle.


request for clarification of all IC's in T41-EP #t41-ep

Doug W
 

I've gone through all the posted files and after bouncing around in the book reading what I was most interested in first and now re-reading cover to cover I am still not completely clear on the correct part numbers for some of the IC's as there seems to be some variation between documents.  I do not have a ton of experience buying IC's on my own as the last chips I bought were potato and I really don't want to get this wrong.  Has anyone compiled a list of exact part numbers from a reputable vendor?


Re: T41 bear minimum

dick faust
 

Thanks to all that responded with the display info.
After reviewing the "specs",  the 5 inch 800 x 480 ER-TFTM050-3 web page, ER-TFTM050-3_Datasheet, fig 6-7, fig 6-8 part1, fig 6-9 and the latest main board schematic I have concluded the following:
Figs 6-9 and 6-8 part1 are wrong, but agree with fig 6-7 which disagrees with the latest schematic [attached]
Pin headers would be preferred based upon the revised [current] schematic and should eliminate disassembly of display to solder the wires thus:
Interface: Pin Header Connection-4-Wire SPI not the FCC connection
&
MicroSD Card Interface: Pin Header Connection not the FCC connection

Also note that the datasheet for the display describes, in section 4.5 Jump Point Description, the correct jumpers for all options if the options were not ordered correctly or a change is needed in the future.

Dick K9IVB


Re: File /STL Files for T41 Case.zip uploaded #file-notice

Greg KF5N
 

Added to the Wiki for the T41-EP.

73 Greg KF5N


Re: T41 Parts ID

jerry@tr2.com
 

Thanks Jack.

On order. I do prefer Amazon for this sort of thing - because those
vendors ship fast - estimated delivery tomorrow. Not next month.

- Jerry

On 2022-06-15 08:03, jjpurdum via groups.io wrote:
My bad. Take a look at Amazon B06VY1WJ8Z. Share with someone else??
Jack, W8TEE
On Wednesday, June 15, 2022 at 10:51:50 AM EDT, jerry@...
<jerry@...> wrote:
On 2022-06-15 07:29, jjpurdum via groups.io wrote:
It doesn't really matter if the switch holes are round or square,
since a printed cover is glued to the front. They are 6x6mm
switches:
Thanks Jack,
The Ebay listing you referenced said those are 12x12.
- Jerry

https://www.mouser.com/datasheet/2/307/en-b3f-13826.pdf
Jack, W8TEE
On Wednesday, June 15, 2022 at 10:11:17 AM EDT, jerry@...
<jerry@...> wrote:
So Jack,
These are the 12mm by 12mm switches? The other common size seems
to
be 6mm x 6mm.
Also, I note that you 3d-printed the front panel with square holes -
no
doubt
so you could screw the switch matrix board directly to the front
panel.
I see that such switches are available with various heights for the
actuating
pin. With a longer pin, one could mount the matrix on short
standoffs
and make
a front panel with round holes. For an aluminum front panel, it's
MUCH
easier to drill round holes than square ones.
- Jerry, KF6VB
On 2022-06-15 06:05, jjpurdum via groups.io wrote:
There's no "perhaps" about it. Look at the Figure 2-1 from the
image
list here:
The switches are the cheap momentary tactile push button switches.
We
went fancy and paid about $2.50 for 20 of them with color caps
(eBay
185209220183). So far, they work fine.
Jack, W8TEE
On Wednesday, June 15, 2022 at 04:49:12 AM EDT, Glenn
<glennp@...> wrote:
Jack, Al
The front panel shows 18 press button switches. They don't seem to
appear in any BOM? What type were used?
The diagram for those switches, Fig 4-4, shows 16 switches. With
no
apparent provision for two more to make 18.
I can't see any pictures of behind the panel in the book although I
may have missed it. What were the switches mounted on?
A PCB would be nice perhaps. And for those who use a metal front
panel
and case, switches using round actuators would be easier to drill
the
panel for (in case you don't have a square drill.)
Glenn vk3pe
Links:
------
[1] https://groups.io/g/SoftwareControlledHamRadio/message/15992
[2] https://groups.io/mt/91744858/243852
[3] https://groups.io/g/SoftwareControlledHamRadio/post
[4] https://groups.io/g/SoftwareControlledHamRadio/editsub/243852
[5]
https://groups.io/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy
Links:
------
[1] https://groups.io/g/SoftwareControlledHamRadio/message/16002
[2] https://groups.io/mt/91744858/243852
[3] https://groups.io/g/SoftwareControlledHamRadio/post
[4] https://groups.io/g/SoftwareControlledHamRadio/editsub/243852
[5]
https://groups.io/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy
Links:
------
[1] https://groups.io/g/SoftwareControlledHamRadio/message/16009
[2] https://groups.io/mt/91744858/243852
[3] https://groups.io/g/SoftwareControlledHamRadio/post
[4] https://groups.io/g/SoftwareControlledHamRadio/editsub/243852
[5]
https://groups.io/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy


File /STL Files for T41 Case.zip uploaded #file-notice

Group Notification <noreply@...>
 

The following files and folders have been uploaded to the Files area of the SoftwareControlledHamRadio@groups.io group.

By: jjpurdum <jjpurdum@...>

Description:
This zip file contains the STL files used to 3D print the case seen on the cover of the T41 book.


Re: T41-EP 3D Printed Case?

Greg KF5N
 

OK, yeah got it now.  Thanks!

73 Greg KF5N


Re: T41 Parts ID

jjpurdum
 

My bad. Take a look at Amazon B06VY1WJ8Z. Share with someone else??

Jack, W8TEE

On Wednesday, June 15, 2022 at 10:51:50 AM EDT, jerry@... <jerry@...> wrote:


On 2022-06-15 07:29, jjpurdum via groups.io wrote:
> It doesn't really matter if the switch holes are round or square,
> since a printed cover is glued to the front. They are 6x6mm switches:
Thanks Jack,

    The Ebay listing you referenced said those are 12x12.

                        - Jerry



> https://www.mouser.com/datasheet/2/307/en-b3f-13826.pdf
>
> Jack, W8TEE
>
>  On Wednesday, June 15, 2022 at 10:11:17 AM EDT, jerry@...
> <jerry@...> wrote:
>
> So Jack,
>
>    These are the 12mm by 12mm switches?  The other common size seems
> to
> be 6mm x 6mm.
> Also, I note that you 3d-printed the front panel with square holes -
> no
> doubt
> so you could screw the switch matrix board directly to the front
> panel.
>
>  I see that such switches are available with various heights for the
> actuating
> pin.  With a longer pin, one could mount the matrix on short standoffs
>
> and make
>  a front panel with round holes.  For an aluminum front panel, it's
> MUCH
> easier to drill round holes than square ones.
>
>              - Jerry, KF6VB
>
> On 2022-06-15 06:05, jjpurdum via groups.io wrote:
>> There's no "perhaps" about it. Look at the Figure 2-1 from the image
>> list here:
>>
>> The switches are the cheap momentary tactile push button switches.
> We
>> went fancy and paid about $2.50 for 20 of them with color caps (eBay
>> 185209220183). So far, they work fine.
>>
>> Jack, W8TEE
>>
>>  On Wednesday, June 15, 2022 at 04:49:12 AM EDT, Glenn
>> <glennp@...> wrote:
>>
>> Jack, Al
>> The front panel shows 18 press button switches.  They don't seem to
>> appear in any BOM? What type were used?
>>
>> The diagram for those switches, Fig 4-4, shows 16 switches.  With no
>> apparent provision for two more to make 18.
>>
>> I can't see any pictures of behind the panel in the book although I
>> may have missed it.  What were the switches mounted on?
>>
>> A PCB would be nice perhaps. And for those who use a metal front
> panel
>> and case, switches using round actuators would be easier to drill
> the
>> panel for (in case you don't have a square drill.)
>>
>> Glenn vk3pe
>>
>>
>>
>> Links:
>> ------
>> [1] https://groups.io/g/SoftwareControlledHamRadio/message/15992
>> [2] https://groups.io/mt/91744858/243852
>> [3] https://groups.io/g/SoftwareControlledHamRadio/post
>> [4] https://groups.io/g/SoftwareControlledHamRadio/editsub/243852
>> [5]
>>
> https://groups.io/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy
>
>
>
> Links:
> ------
> [1] https://groups.io/g/SoftwareControlledHamRadio/message/16002
> [2] https://groups.io/mt/91744858/243852
> [3] https://groups.io/g/SoftwareControlledHamRadio/post
> [4] https://groups.io/g/SoftwareControlledHamRadio/editsub/243852
> [5]
> https://groups.io/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy






Re: Subscribe

jjpurdum
 

No. However, if you have never made a post before to this site, I am sent a request to approve your post. I have never not approved a post. However, it may take a while before I read the post request, hence the delay on a "first post".

Jack, W8TEE

On Wednesday, June 15, 2022 at 10:42:48 AM EDT, David Hepworth <dave@...> wrote:


Apologies Jack, it’s my misunderstanding of how Groups.io works; I thought sending the request was mandatory before I could email.

 

Best regards,

 

Dave G7ABT

 

From: SoftwareControlledHamRadio@groups.io <SoftwareControlledHamRadio@groups.io> On Behalf Of jjpurdum via groups.io
Sent: 15 June 2022 03:10
To: SoftwareControlledHamRadio@groups.io
Subject: Re: [SoftwareControlledHamRadio] Subscribe

 

I don't think I'm stopping you...what seems to be the problem?

 

Jack, W8TEE

 

On Tuesday, June 14, 2022 at 09:35:25 PM EDT, David Hepworth <dave@...> wrote:

 

 

Please allow me to email other members.

 

Regards,

 

Dave G7ABT

 

 

 

 

 

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