From paulmacdnc at att.net  Mon Jun  3 16:19:44 2024
From: paulmacdnc at att.net (The MacDougals)
Date: Mon, 3 Jun 2024 17:19:44 -0400
Subject: [TriEmbed] Monthly meeting 6/10 @ 7:00 in person at TFI
In-Reply-To: <037b01daa307$2b6f8b80$824ea280$@att.net>
References: <016a01daa0aa$28e32430$7aa96c90$.ref@att.net>
 <016a01daa0aa$28e32430$7aa96c90$@att.net>
 <037b01daa307$2b6f8b80$824ea280$@att.net>
Message-ID: <00c201dab5fb$c205f500$4611df00$@att.net>

We will have our normal monthly meeting on Monday 6/10/2024 at 7:00 pm

We will be meeting in person at The Forge Initiative, 2172 Salem St,  Apex
NC

 

Agenda:

- Welcome

- Announcements

- P.O.T.M.

- Show and Tell

 

---> Paul

 

 

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From scottghall1 at gmail.com  Wed Jun  5 10:03:56 2024
From: scottghall1 at gmail.com (Scott Hall)
Date: Wed, 5 Jun 2024 11:03:56 -0400
Subject: [TriEmbed] Fwd: Webinar Alert: Secured Smart Access: Building the
 Future of Smart Homes
In-Reply-To: <4ecb620f8ed264d1d84aa0981.d21c671107.20240605075935.7c078b7d39.e865e8e9@mail11.sea91.rsgsv.net>
References: <4ecb620f8ed264d1d84aa0981.d21c671107.20240605075935.7c078b7d39.e865e8e9@mail11.sea91.rsgsv.net>
Message-ID: <CALOtY4Mw8BjpBXiPYZ5xrYSE=m4cTpSGKgSBs_LKYiCUMJzsWQ@mail.gmail.com>

Here's another webinar that I thought folks in the club might be interested
in...

---------- Forwarded message ---------
From: Elektor <news at elektor.com>
Date: Wed, Jun 5, 2024, 4:03?AM
Subject: Webinar Alert: Secured Smart Access: Building the Future of Smart
Homes
To: <scottghall1 at gmail.com>


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Brought to you by Mouser Electronics and
Infineon ? ? ? ? ? ? ? ? ? ? ? ? ?  ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ? ?  ? ? ? ? ? ? ? ? ? ? ? ? ?

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18 June 2024 ? 5PM CET

Webinar: Secured Smart Access: Building the Future of Smart Homes

Mouser Electronics and Infineon have teamed up for a brand-new webinar.


*Tune in and discover:*

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From paulmacdnc at att.net  Tue Jun 11 07:35:06 2024
From: paulmacdnc at att.net (The MacDougals)
Date: Tue, 11 Jun 2024 08:35:06 -0400
Subject: [TriEmbed] FW: June EMP Meeting
In-Reply-To: <65030aed86cf96239bcf89468.2092b29c7a.20240610161401.5842eb0f9f.48c73676@mail70.atl31.mcdlv.net>
References: <65030aed86cf96239bcf89468.2092b29c7a.20240610161401.5842eb0f9f.48c73676@mail70.atl31.mcdlv.net>
Message-ID: <053101dabbfb$caf9e0d0$60eda270$@att.net>

 

 

From: Alamance Makers Guild <info at alamancemakers.org> 
Sent: Monday, June 10, 2024 12:14 PM
To: Paul <paulmacd at acm.org>
Subject: June EMP Meeting

 







 <https://mailchi.mp/ca893426563d/june-emp-meeting?e=2092b29c7a> View this email in your browser 




  <https://mcusercontent.com/65030aed86cf96239bcf89468/images/2aaea483-0d2a-6170-d7eb-7d21243b7df2.jpg> 






JUNE EMP MEETING!!


Date: June 13th
Time: 7:00 pm
Where:  Zoom Meeting (use the link below)

Please join us for a conversation involving all things electronic.

Kurt Henderson has agreed to take the lead with our "3 bit Computer project."  I am sure that he will want to continue our conversations pertaining to that project.

Nim has floated the idea of starting a group that would work on designing a sequential discovery puzzle (with integrated electronic components--you can do a lot more with sensors, actuators, lights, switches, microprocessors, etc than you can with mere mechanical means).  So, we look forward to starting that conversation/group. 

If you have encountered anything interesting lately (in the news, on-line, or with your own projects), then you can share that with the group.

Also, if you have any questions that you'd like to pose to the group, that would  be great.

As always, please come prepared to share your on-going projects and progress with others in the group.  We can always learn from one another.

We will also continue to discuss plans for our assembly language/computer hardware learning platform project.

Please share this invitation with anyone who you think might be interested in the activity of this group.

Join Zoom Meeting
 <https://AlamanceMakers.us11.list-manage.com/track/click?u=65030aed86cf96239bcf89468&id=0e00786303&e=2092b29c7a> https://elon.zoom.us/j/99385679477?pwd=5wbb1srkFNoyQS9R4y7VQAQamWy9zN.1

Meeting ID: 993 8567 9477
Passcode: 795096

Keep in mind that you can participate in our on-going conversations in this domain by subscribing to our Discord server.

Get Discord for any Device, MS Windows, Mac, IOS, Android, Linux.
{I put it on all my devices and stay connected all day long.}
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THIS IS THE AMG INVITE
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Mobile Phone
--------------
1. Open the Discord app on your phone and log in, if necessary.
2. Tap the three stacked lines in the top-left corner of the screen.
   Tap the three-horizontal-line icon. ...
3. Select the "+" sign in the server menu. ...
4. Tap "Join a server." ...
5. Paste in the invite link and tap "Join."
 
Computer
---------
1. Open Discord and log into your account, if needed.
2. Click the plus icon in the left sidebar.
3. Select "Join a server."
4. Paste in the invite link and hit "Join."
  










 <https://alamancemakers.us11.list-manage.com/track/click?u=65030aed86cf96239bcf89468&id=7ebaeca5c5&e=2092b29c7a> 




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 <https://alamancemakers.us11.list-manage.com/track/click?u=65030aed86cf96239bcf89468&id=90ea44ac5a&e=2092b29c7a> 

 


	

 




Copyright ? 2024 Alamance Makers Guild, All rights reserved. 
You are receiving this email because you opted in at some point, or were added as being a supporter of Alamance Makers Guild. 

Our mailing address is: 

Alamance Makers Guild

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From rick.denatale at gmail.com  Wed Jun 26 16:36:41 2024
From: rick.denatale at gmail.com (Rick DeNatale)
Date: Wed, 26 Jun 2024 17:36:41 -0400
Subject: [TriEmbed] Is anyone here a JST Connector Wizard
Message-ID: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>

?I?m convinced that these things are the invention of the devil!

Despite my best efforts, I?d guess i have about a 20% yield crimping JST terminals.

I?ve bought several crimping tools. https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were recommended by various YouTube videos.

The second one works a bit better unlike the first it has you crimp the electrical contact first and then the mechanical crimp around the insulation. 

My big problem is that the insulation crimp often doesn?t form correctly.  Instead of wrapping around the insulation the wings just stick out straight.

Then either the terminal comes off the wire while removing the ?tape? part, or when trying to to insert the terminal in the plastic shell.

Is my problem with the terminals? I?ve been buying kits from Amazon. Would i be better off with a different vendor like Digikey?

Any advice gladly appreciated.

??
Rick DeNatale
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From mrglenasmith at gmail.com  Wed Jun 26 18:36:31 2024
From: mrglenasmith at gmail.com (Glen Smith)
Date: Wed, 26 Jun 2024 19:36:31 -0400
Subject: [TriEmbed] Fwd:  Is anyone here a JST Connector Wizard
In-Reply-To: <CANwtiDV6tNiWER1k1iFWGKShA=_52Wpby_m2_kmeSwm=Hm8ytw@mail.gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
 <CANwtiDV6tNiWER1k1iFWGKShA=_52Wpby_m2_kmeSwm=Hm8ytw@mail.gmail.com>
Message-ID: <CANwtiDXrOZPN4uBJdxfR0w=XO+e7DWN79eqX=fj62ebCBic=JA@mail.gmail.com>

Apparently my photo made the message too large for the server, I think I
removed it this time.

---------- Forwarded message ---------
From: Glen Smith <mrglenasmith at gmail.com>
Date: Wed, Jun 26, 2024, 6:16 PM
Subject: Re: [TriEmbed] Is anyone here a JST Connector Wizard
To: Rick DeNatale <rick.denatale at gmail.com>
Cc: TriEmbed Discussion <triembed at triembed.org>


I won't claim expert level, but after reading this write up:
https://iotexpert.com/jst-connector-crimping-insanity/
Buying the Engineer PA-09 crimper and some practice I got to the point
where I was getting 70-80% success rate on JST-PH (I think) connectors
during robot season.

My new Voron printer uses PH connectors for some stepper motors and FRC
motor encoders use them as well. I found that good tweezers, magnification
and peace and quiet helped considerably. I ordered from DigiKey. I'd be
happy to meet and show my technique if it would help.

Glen

On Wed, Jun 26, 2024, 5:37 PM Rick DeNatale via TriEmbed <
triembed at triembed.org> wrote:

> ?I?m convinced that these things are the invention of the devil!
>
> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
> terminals.
>
> I?ve bought several crimping tools.
> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>  and
> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
> recommended by various YouTube videos.
>
> The second one works a bit better unlike the first it has you crimp the
> electrical contact first and then the mechanical crimp around the
> insulation.
>
> My big problem is that the insulation crimp often doesn?t form correctly.
> Instead of wrapping around the insulation the wings just stick out straight.
>
> Then either the terminal comes off the wire while removing the ?tape?
> part, or when trying to to insert the terminal in the plastic shell.
>
> Is my problem with the terminals? I?ve been buying kits from Amazon. Would
> i be better off with a different vendor like Digikey?
>
> Any advice gladly appreciated.
>
> ??
> Rick DeNatale
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From scottghall1 at gmail.com  Wed Jun 26 18:50:05 2024
From: scottghall1 at gmail.com (Scott Hall)
Date: Wed, 26 Jun 2024 19:50:05 -0400
Subject: [TriEmbed] Fwd: Is anyone here a JST Connector Wizard
In-Reply-To: <CANwtiDXrOZPN4uBJdxfR0w=XO+e7DWN79eqX=fj62ebCBic=JA@mail.gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
 <CANwtiDV6tNiWER1k1iFWGKShA=_52Wpby_m2_kmeSwm=Hm8ytw@mail.gmail.com>
 <CANwtiDXrOZPN4uBJdxfR0w=XO+e7DWN79eqX=fj62ebCBic=JA@mail.gmail.com>
Message-ID: <CALOtY4Mb0uSiCs64qqD2dg1Kmz6zibGh6jnHhFFi3g-uogKmcw@mail.gmail.com>

The trick I would use all these years is to crimp down one wing over the
insulation, then crimp the second wing over the first, then recrimp over
both to squeeze it up maintaining that overlap.

-sgh

On Wed, Jun 26, 2024, 7:36?PM Glen Smith via TriEmbed <triembed at triembed.org>
wrote:

> Apparently my photo made the message too large for the server, I think I
> removed it this time.
>
> ---------- Forwarded message ---------
> From: Glen Smith <mrglenasmith at gmail.com>
> Date: Wed, Jun 26, 2024, 6:16 PM
> Subject: Re: [TriEmbed] Is anyone here a JST Connector Wizard
> To: Rick DeNatale <rick.denatale at gmail.com>
> Cc: TriEmbed Discussion <triembed at triembed.org>
>
>
> I won't claim expert level, but after reading this write up:
> https://iotexpert.com/jst-connector-crimping-insanity/
> Buying the Engineer PA-09 crimper and some practice I got to the point
> where I was getting 70-80% success rate on JST-PH (I think) connectors
> during robot season.
>
> My new Voron printer uses PH connectors for some stepper motors and FRC
> motor encoders use them as well. I found that good tweezers, magnification
> and peace and quiet helped considerably. I ordered from DigiKey. I'd be
> happy to meet and show my technique if it would help.
>
> Glen
>
> On Wed, Jun 26, 2024, 5:37 PM Rick DeNatale via TriEmbed <
> triembed at triembed.org> wrote:
>
>> ?I?m convinced that these things are the invention of the devil!
>>
>> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
>> terminals.
>>
>> I?ve bought several crimping tools.
>> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>>  and
>> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
>> recommended by various YouTube videos.
>>
>> The second one works a bit better unlike the first it has you crimp the
>> electrical contact first and then the mechanical crimp around the
>> insulation.
>>
>> My big problem is that the insulation crimp often doesn?t form
>> correctly.  Instead of wrapping around the insulation the wings just stick
>> out straight.
>>
>> Then either the terminal comes off the wire while removing the ?tape?
>> part, or when trying to to insert the terminal in the plastic shell.
>>
>> Is my problem with the terminals? I?ve been buying kits from Amazon.
>> Would i be better off with a different vendor like Digikey?
>>
>> Any advice gladly appreciated.
>>
>> ??
>> Rick DeNatale
>> _______________________________________________
>> Triangle, NC Embedded Interest Group mailing list
>>
>> To post message: TriEmbed at triembed.org
>> List info:
>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>> TriEmbed web site: https://TriEmbed.org
>> To unsubscribe, click link and send a blank message: mailto:
>> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
>> Searchable email archive available at
>> https://www.mail-archive.com/triembed at triembed.org/
>>
>> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From trampas at gmail.com  Thu Jun 27 06:55:18 2024
From: trampas at gmail.com (Trampas Stern)
Date: Thu, 27 Jun 2024 07:55:18 -0400
Subject: [TriEmbed] Fwd: Is anyone here a JST Connector Wizard
In-Reply-To: <CANwtiDXrOZPN4uBJdxfR0w=XO+e7DWN79eqX=fj62ebCBic=JA@mail.gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
 <CANwtiDV6tNiWER1k1iFWGKShA=_52Wpby_m2_kmeSwm=Hm8ytw@mail.gmail.com>
 <CANwtiDXrOZPN4uBJdxfR0w=XO+e7DWN79eqX=fj62ebCBic=JA@mail.gmail.com>
Message-ID: <CADqjcyiHhpKB5Vqw8bqEc+vxSoH2p3Bs0y9fgoOdE=RVm-dBpQ@mail.gmail.com>

yea I have the same issue, sent images of the process and it is waiting for
moderator approval.


On Wed, Jun 26, 2024 at 7:37?PM Glen Smith via TriEmbed <
triembed at triembed.org> wrote:

> Apparently my photo made the message too large for the server, I think I
> removed it this time.
>
> ---------- Forwarded message ---------
> From: Glen Smith <mrglenasmith at gmail.com>
> Date: Wed, Jun 26, 2024, 6:16 PM
> Subject: Re: [TriEmbed] Is anyone here a JST Connector Wizard
> To: Rick DeNatale <rick.denatale at gmail.com>
> Cc: TriEmbed Discussion <triembed at triembed.org>
>
>
> I won't claim expert level, but after reading this write up:
> https://iotexpert.com/jst-connector-crimping-insanity/
> Buying the Engineer PA-09 crimper and some practice I got to the point
> where I was getting 70-80% success rate on JST-PH (I think) connectors
> during robot season.
>
> My new Voron printer uses PH connectors for some stepper motors and FRC
> motor encoders use them as well. I found that good tweezers, magnification
> and peace and quiet helped considerably. I ordered from DigiKey. I'd be
> happy to meet and show my technique if it would help.
>
> Glen
>
> On Wed, Jun 26, 2024, 5:37 PM Rick DeNatale via TriEmbed <
> triembed at triembed.org> wrote:
>
>> ?I?m convinced that these things are the invention of the devil!
>>
>> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
>> terminals.
>>
>> I?ve bought several crimping tools.
>> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>>  and
>> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
>> recommended by various YouTube videos.
>>
>> The second one works a bit better unlike the first it has you crimp the
>> electrical contact first and then the mechanical crimp around the
>> insulation.
>>
>> My big problem is that the insulation crimp often doesn?t form
>> correctly.  Instead of wrapping around the insulation the wings just stick
>> out straight.
>>
>> Then either the terminal comes off the wire while removing the ?tape?
>> part, or when trying to to insert the terminal in the plastic shell.
>>
>> Is my problem with the terminals? I?ve been buying kits from Amazon.
>> Would i be better off with a different vendor like Digikey?
>>
>> Any advice gladly appreciated.
>>
>> ??
>> Rick DeNatale
>> _______________________________________________
>> Triangle, NC Embedded Interest Group mailing list
>>
>> To post message: TriEmbed at triembed.org
>> List info:
>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>> TriEmbed web site: https://TriEmbed.org
>> To unsubscribe, click link and send a blank message: mailto:
>> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
>> Searchable email archive available at
>> https://www.mail-archive.com/triembed at triembed.org/
>>
>> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From trampas at gmail.com  Wed Jun 26 16:53:12 2024
From: trampas at gmail.com (Trampas Stern)
Date: Wed, 26 Jun 2024 17:53:12 -0400
Subject: [TriEmbed] Is anyone here a JST Connector Wizard
In-Reply-To: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
Message-ID: <CADqjcyi=Vf9C1HssidwjF8dbrLAL_U7K7D9BmM=exbti4fwxAQ@mail.gmail.com>

Rick,

I do quite a few JST crimps and here is what I found works best for me.
Note I have tried every crimper I could find, the engineering ones and
others.  I found the process of setting up the terminals to be the key to
success. It is not a fast process but I have had good results.

I use this crimper, but many are the same:
[image: image.png]

Then I prepare the terminal, first cut off the leader near the terminal to
be used:
[image: image.png]

Bend the terminal to be crimped 90 degrees as shown below:
[image: image.png]

Insert into the crimper and close as shown, these crimpers lock in this
position and often the insulation wings are a bit wide and I have to
squeeze them before installing in the crimper.
[image: image.png]
Then I insert the stripped wire.
[image: image.png]

After the crimp I break the terminal and wire from the leader, while doing
a pull test.
[image: image.png]


Trampas



On Wed, Jun 26, 2024 at 5:37?PM Rick DeNatale via TriEmbed <
triembed at triembed.org> wrote:

> ?I?m convinced that these things are the invention of the devil!
>
> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
> terminals.
>
> I?ve bought several crimping tools.
> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>  and
> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
> recommended by various YouTube videos.
>
> The second one works a bit better unlike the first it has you crimp the
> electrical contact first and then the mechanical crimp around the
> insulation.
>
> My big problem is that the insulation crimp often doesn?t form correctly.
> Instead of wrapping around the insulation the wings just stick out straight.
>
> Then either the terminal comes off the wire while removing the ?tape?
> part, or when trying to to insert the terminal in the plastic shell.
>
> Is my problem with the terminals? I?ve been buying kits from Amazon. Would
> i be better off with a different vendor like Digikey?
>
> Any advice gladly appreciated.
>
> ??
> Rick DeNatale
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From trampas at gmail.com  Wed Jun 26 17:02:03 2024
From: trampas at gmail.com (Trampas Stern)
Date: Wed, 26 Jun 2024 18:02:03 -0400
Subject: [TriEmbed] Is anyone here a JST Connector Wizard
In-Reply-To: <CADqjcyi=Vf9C1HssidwjF8dbrLAL_U7K7D9BmM=exbti4fwxAQ@mail.gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
 <CADqjcyi=Vf9C1HssidwjF8dbrLAL_U7K7D9BmM=exbti4fwxAQ@mail.gmail.com>
Message-ID: <CADqjcyh6svutqc+s1BASwap8Q1JqysUymiPbv0A8w4ft2TdVUQ@mail.gmail.com>

I should note that you need to bend the terminal 90 degrees before crimp
when using larger terminals that are not the first set of dies on the
crimper.  As such I always just bend them 90 as part of my process.
I use several different JST connectors (XH, PH etc) so I pick the die based
on the terminal and wire size.

Also if you want perfect crimps you need to mark the wire before inserting.
You can not see how far the wire goes into the terminal before crimping. I
inserted mine too far in the image above.  As such you can use marker to
mark wire length or take time to be more accurate than I was on the depth.


You can also buy wire leads from digikey pre crimped:
https://www.digikey.com/en/products/filter/jumper-wires-pre-crimped-leads/453?s=N4IgTCBcDaIFYGcAuACADgCxQdwJYCcBTFAG0IEMATBEAXQF8g
I usually recommend that people buy these pre-crimped leads where possible,
however I still crimp my own.


Trampas

On Wed, Jun 26, 2024 at 5:53?PM Trampas Stern <trampas at gmail.com> wrote:

> Rick,
>
> I do quite a few JST crimps and here is what I found works best for me.
> Note I have tried every crimper I could find, the engineering ones and
> others.  I found the process of setting up the terminals to be the key to
> success. It is not a fast process but I have had good results.
>
> I use this crimper, but many are the same:
> [image: image.png]
>
> Then I prepare the terminal, first cut off the leader near the terminal to
> be used:
> [image: image.png]
>
> Bend the terminal to be crimped 90 degrees as shown below:
> [image: image.png]
>
> Insert into the crimper and close as shown, these crimpers lock in this
> position and often the insulation wings are a bit wide and I have to
> squeeze them before installing in the crimper.
> [image: image.png]
> Then I insert the stripped wire.
> [image: image.png]
>
> After the crimp I break the terminal and wire from the leader, while doing
> a pull test.
> [image: image.png]
>
>
> Trampas
>
>
>
> On Wed, Jun 26, 2024 at 5:37?PM Rick DeNatale via TriEmbed <
> triembed at triembed.org> wrote:
>
>> ?I?m convinced that these things are the invention of the devil!
>>
>> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
>> terminals.
>>
>> I?ve bought several crimping tools.
>> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>>  and
>> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
>> recommended by various YouTube videos.
>>
>> The second one works a bit better unlike the first it has you crimp the
>> electrical contact first and then the mechanical crimp around the
>> insulation.
>>
>> My big problem is that the insulation crimp often doesn?t form
>> correctly.  Instead of wrapping around the insulation the wings just stick
>> out straight.
>>
>> Then either the terminal comes off the wire while removing the ?tape?
>> part, or when trying to to insert the terminal in the plastic shell.
>>
>> Is my problem with the terminals? I?ve been buying kits from Amazon.
>> Would i be better off with a different vendor like Digikey?
>>
>> Any advice gladly appreciated.
>>
>> ??
>> Rick DeNatale
>> _______________________________________________
>> Triangle, NC Embedded Interest Group mailing list
>>
>> To post message: TriEmbed at triembed.org
>> List info:
>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>> TriEmbed web site: https://TriEmbed.org
>> To unsubscribe, click link and send a blank message: mailto:
>> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
>> Searchable email archive available at
>> https://www.mail-archive.com/triembed at triembed.org/
>>
>>
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From mrglenasmith at gmail.com  Wed Jun 26 17:16:55 2024
From: mrglenasmith at gmail.com (Glen Smith)
Date: Wed, 26 Jun 2024 18:16:55 -0400
Subject: [TriEmbed] Is anyone here a JST Connector Wizard
In-Reply-To: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
Message-ID: <CANwtiDV6tNiWER1k1iFWGKShA=_52Wpby_m2_kmeSwm=Hm8ytw@mail.gmail.com>

I won't claim expert level, but after reading this write up:
https://iotexpert.com/jst-connector-crimping-insanity/
Buying the Engineer PA-09 crimper and some practice I got to the point
where I was getting 70-80% success rate on JST-PH (I think) connectors
during robot season.

My new Voron printer uses PH connectors for some stepper motors and FRC
motor encoders use them as well. I found that good tweezers, magnification
and peace and quiet helped considerably. I ordered from DigiKey. I'd be
happy to meet and show my technique if it would help.

Glen

On Wed, Jun 26, 2024, 5:37 PM Rick DeNatale via TriEmbed <
triembed at triembed.org> wrote:

> ?I?m convinced that these things are the invention of the devil!
>
> Despite my best efforts, I?d guess i have about a 20% yield crimping JST
> terminals.
>
> I?ve bought several crimping tools.
> https://www.amazon.com/gp/product/B01N4L8QMW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
>  and
> https://www.amazon.com/gp/product/B078WNZ9FW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 were
> recommended by various YouTube videos.
>
> The second one works a bit better unlike the first it has you crimp the
> electrical contact first and then the mechanical crimp around the
> insulation.
>
> My big problem is that the insulation crimp often doesn?t form correctly.
> Instead of wrapping around the insulation the wings just stick out straight.
>
> Then either the terminal comes off the wire while removing the ?tape?
> part, or when trying to to insert the terminal in the plastic shell.
>
> Is my problem with the terminals? I?ve been buying kits from Amazon. Would
> i be better off with a different vendor like Digikey?
>
> Any advice gladly appreciated.
>
> ??
> Rick DeNatale
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From pete at soper.us  Thu Jun 27 19:49:04 2024
From: pete at soper.us (Pete Soper)
Date: Thu, 27 Jun 2024 20:49:04 -0400
Subject: [TriEmbed] Join us July 1st to learn about a new Scanning tunneling
 microscope project
Message-ID: <d34b916f-4843-4079-a888-d9ead56b6431@soper.us>

Folks,

 ?? Nick Edgington started a project with the Forge Initiative to build 
an affordable scanning tunneling microscope ("STM") capable of 
visualizing individual atoms. He,? Jaime Johnsen, and I have been 
gathering up information and doing a few initial things to test the 
waters with input from Rob Mackey of the Forge and others.? Now we'd 
like to start organizing the project and connecting with folks 
interested in becoming involved.

 ?? An STM is a primarily electronic device that senses quantum 
tunneling current flows between individual atoms while an electrically 
charged, atomically sharp probe moves at very close range across the 
surface to be scanned. Commercial STMs such as at universities are very 
expensive. Our goal is to make something that can be reproduced for a 
few hundred dollars. Ultimately we want a kit suitable for school 
children. More details of STM operation here: 
https://my.eng.utah.edu/~lzang/images/Lecture_6_STM.pdf

 ? Here are some key features of the project:

  * Extremely efficient resistance to vibration. Because the probe must
    move less? than a nanometer from the surface to be scanned, very
    efficient dampening must be used. Also the dampening must be
    portable and use inexpensive materials.
  * A means of moving the probe very precisely. Piezo crystals and
    precise applied voltages are the common method for hobby STMs.
  * A means of creating atomically sharp probe wires (the tip must be a
    single atom!). This typically involves electrochemical etching with
    gizmos to manage the process in a very repeatable manner.
    Alternatively, a probe tip can be made in a much simpler way with
    manual techniques for cutting the probe wire.
  * A very stable package for the probe that contains the piezo probe
    actuator and the probe current front end electronics. One of the
    best projects we've found uses what appears to be a CNC-machined
    block of aluminum that is a thing of beauty just asking to be used
    for inspiration.
  * High performance but inexpensive electronics to sense probe current
    (*peak* current is a nanoampere or two) and digitize it, arrange
    bias voltages between tip and target to enable quantum tunneling,
    and move the probe on three axes. The power supplies have to be
    excellent. Custom PC boards are a given.
  * Software to control the system, gather data and translate it into
    visualization and provide a user interface. A large body of code for
    the Espressif ESP32 (project Edger) can be leveraged for a very low
    cost system. The software will probably be a mixture of Python, C,
    and Javascript.
  * Making test systems that help detect things going right and wrong.
  * Many supporting tasks to do with documentation, safety,
    communication, coordination, sponsorship, etc.

*An informal meeting will be held this Monday July 1st at 7pm *with 
Jitsi using the usual TriEmbed URL : https://meet.jit.si/TriEmbed .

*A more formal meeting will be held in mid August* in a room provided by 
the town of Apex (the Forge is based in Apex).

 ? The various subsystems of an STM really push the envelope for 
performance, and this project will be quite challenging, even though 
there are many shoulders to stand on.

 ? A Discord channel on the Edger project is accumulating records while 
we finish setting up a GitHub repository and supporting web resources. 
I'll send directions on how to hook up with it later.

Pete
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From triembed at undecidedgames.net  Sat Jun 29 15:39:34 2024
From: triembed at undecidedgames.net (Brian)
Date: Sat, 29 Jun 2024 16:39:34 -0400
Subject: [TriEmbed] Is anyone here a JST Connector Wizard
In-Reply-To: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
References: <1B30D41B-8FE2-4B96-B5AB-56E06E9D662F@gmail.com>
Message-ID: <a46142be-d81d-b52c-b0b8-eb33238586d8@undecidedgames.net>

Depending on your budget, number of times you expect to crimp JST 
terminals, and the value you place on your own frustration (or 
prevention thereof), it might be worth the $500 for the proper JST 
crimpers.  Having the correct tool with the correct terminal holder 
makes a world of difference (said from the wallet-comfortable position 
of having an employer who paid for them...).

-B

On 6/26/24 17:36, Rick DeNatale via TriEmbed wrote:
> ?I?m convinced that these things are the invention of the devil!
> 
> Despite my best efforts, I?d guess i have about a 20% yield crimping JST 
> terminals.
> <snip>


From pete at soper.us  Sun Jun 30 20:06:41 2024
From: pete at soper.us (Pete Soper)
Date: Sun, 30 Jun 2024 21:06:41 -0400 (EDT)
Subject: [TriEmbed] Now this is a cheap microcontroller
Message-ID: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>

https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
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From raubvogel at gmail.com  Sun Jun 30 20:23:36 2024
From: raubvogel at gmail.com (Mauricio Tavares)
Date: Sun, 30 Jun 2024 21:23:36 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
Message-ID: <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>

On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
<triembed at triembed.org> wrote:
>
> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
      Should we make a group buy?


From 1101010 at gmail.com  Sun Jun 30 20:29:46 2024
From: 1101010 at gmail.com (jonathan hunsberger)
Date: Sun, 30 Jun 2024 21:29:46 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
Message-ID: <CAJWx4YiFLvXyFm5jOE6e2+Ouu+fFJTSVB9EOg9iYA9dm-v+G0g@mail.gmail.com>

Less than half-millimeter square, how would one even solder to its (8?)
connections?

On Sun, Jun 30, 2024, 21:23 Mauricio Tavares via TriEmbed <
triembed at triembed.org> wrote:

> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
> <triembed at triembed.org> wrote:
> >
> >
> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
> > _______________________________________________
> > Triangle, NC Embedded Interest Group mailing list
> >
>       Should we make a group buy?
>
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>
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From pete at soper.us  Sun Jun 30 20:31:44 2024
From: pete at soper.us (Pete Soper)
Date: Sun, 30 Jun 2024 21:31:44 -0400 (EDT)
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
Message-ID: <11226ae8-b0c1-4632-94b4-16e7e4962dcd@soper.us>

:-)
We just need to go in on a wire bond machine and the other stuff for packaging.
Pete

Jun 30, 2024 9:22:49 PM Mauricio Tavares <raubvogel at gmail.com>:

> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
> <triembed at triembed.org> wrote:
>> 
>> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
>> _______________________________________________
>> Triangle, NC Embedded Interest Group mailing list
>> 
> ????? Should we make a group buy?
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From mikelisanke at gmail.com  Sun Jun 30 20:31:15 2024
From: mikelisanke at gmail.com (Mike Lisanke)
Date: Sun, 30 Jun 2024 21:31:15 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
Message-ID: <CALt_PJTfdrBzdZP5RiZOX7t=3m12J589yNVSMAOoB1YXgpOAtg@mail.gmail.com>

I'd be curious if there Any development tools available... e.g. a PCB
layout to expand the chip to a test layout...
Can arduino or other IDE support the instruction set? The link has 8051
embedded in the URL but I loaded the datesheet and it didn't look familiar.
I used 8051 a lot but I haven't tested my memory of that timeframe in Quite
a while.
BTW, Should we have a Discord channel for TriEmbed... they're very easy to
create/run.

On Sun, Jun 30, 2024 at 9:23?PM Mauricio Tavares via TriEmbed <
triembed at triembed.org> wrote:

> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
> <triembed at triembed.org> wrote:
> >
> >
> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
> > _______________________________________________
> > Triangle, NC Embedded Interest Group mailing list
> >
>       Should we make a group buy?
>
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>

-- 
Best regards,  Mike
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From mikelisanke at gmail.com  Sun Jun 30 20:32:13 2024
From: mikelisanke at gmail.com (Mike Lisanke)
Date: Sun, 30 Jun 2024 21:32:13 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <CAJWx4YiFLvXyFm5jOE6e2+Ouu+fFJTSVB9EOg9iYA9dm-v+G0g@mail.gmail.com>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
 <CAJWx4YiFLvXyFm5jOE6e2+Ouu+fFJTSVB9EOg9iYA9dm-v+G0g@mail.gmail.com>
Message-ID: <CALt_PJQh6_NvRXZVVdP96drxeqpUJ5+pHqLV6wMiC6v0HfZ3Xg@mail.gmail.com>

has to be wave soldiered to a PCB... expect a test PCB exists but the
article didn't mention it

On Sun, Jun 30, 2024 at 9:30?PM jonathan hunsberger via TriEmbed <
triembed at triembed.org> wrote:

> Less than half-millimeter square, how would one even solder to its (8?)
> connections?
>
> On Sun, Jun 30, 2024, 21:23 Mauricio Tavares via TriEmbed <
> triembed at triembed.org> wrote:
>
>> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
>> <triembed at triembed.org> wrote:
>> >
>> >
>> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
>> > _______________________________________________
>> > Triangle, NC Embedded Interest Group mailing list
>> >
>>       Should we make a group buy?
>>
>> _______________________________________________
>> Triangle, NC Embedded Interest Group mailing list
>>
>> To post message: TriEmbed at triembed.org
>> List info:
>> http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
>> TriEmbed web site: https://TriEmbed.org
>> To unsubscribe, click link and send a blank message: mailto:
>> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
>> Searchable email archive available at
>> https://www.mail-archive.com/triembed at triembed.org/
>>
>> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>

-- 
Best regards,  Mike
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From mikelisanke at gmail.com  Sun Jun 30 20:34:57 2024
From: mikelisanke at gmail.com (Mike Lisanke)
Date: Sun, 30 Jun 2024 21:34:57 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <11226ae8-b0c1-4632-94b4-16e7e4962dcd@soper.us>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
 <11226ae8-b0c1-4632-94b4-16e7e4962dcd@soper.us>
Message-ID: <CALt_PJQPVODPo=tNvrsPrnci56vrHdr_BT9L71rsx=GJqcCRvQ@mail.gmail.com>

was the chip top-surface wire-bond? That's pretty much a show stopper
except for a young person with great vision, steady hands and
magnification!

On Sun, Jun 30, 2024 at 9:32?PM Pete Soper via TriEmbed <
triembed at triembed.org> wrote:

> :-)
> We just need to go in on a wire bond machine and the other stuff for
> packaging.
> Pete
>
> Jun 30, 2024 9:22:49 PM Mauricio Tavares <raubvogel at gmail.com>:
>
> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
> <triembed at triembed.org> wrote:
>
>
>
> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
>       Should we make a group buy?
>
> _______________________________________________
> Triangle, NC Embedded Interest Group mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: https://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
> Searchable email archive available at
> https://www.mail-archive.com/triembed at triembed.org/
>
>

-- 
Best regards,  Mike
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From raubvogel at gmail.com  Sun Jun 30 21:54:13 2024
From: raubvogel at gmail.com (Mauricio Tavares)
Date: Sun, 30 Jun 2024 22:54:13 -0400
Subject: [TriEmbed] Now this is a cheap microcontroller
In-Reply-To: <CAJWx4YiFLvXyFm5jOE6e2+Ouu+fFJTSVB9EOg9iYA9dm-v+G0g@mail.gmail.com>
References: <db32970f-ad42-45d1-9eac-96c788694438@soper.us>
 <CAHEKYV6Av2LnO1yyWsgtD0v0APJMtF943Y2Ko44qj0hgqLQj9Q@mail.gmail.com>
 <CAJWx4YiFLvXyFm5jOE6e2+Ouu+fFJTSVB9EOg9iYA9dm-v+G0g@mail.gmail.com>
Message-ID: <CAHEKYV68_LC5pQ_m+brdeeCvPY6JfyrwsitVv0P2p+_DYWeqMg@mail.gmail.com>

On Sun, Jun 30, 2024 at 9:29?PM jonathan hunsberger <1101010 at gmail.com> wrote:
>
> Less than half-millimeter square, how would one even solder to its (8?) connections?
>
      Beer. You need to drink the right amount to be able to say "of course!"

> On Sun, Jun 30, 2024, 21:23 Mauricio Tavares via TriEmbed <triembed at triembed.org> wrote:
>>
>> On Sun, Jun 30, 2024 at 9:06?PM Pete Soper via TriEmbed
>> <triembed at triembed.org> wrote:
>> >
>> > https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
>> > _______________________________________________
>> > Triangle, NC Embedded Interest Group mailing list
>> >
>>       Should we make a group buy?
>>