fruit-uk
Posts: 609
Joined: Wed Aug 06, 2014 4:19 pm
Location: Suffolk, UK

Re: Want solderless headers for the Pi0?

Fri Jan 29, 2016 7:11 pm

Deltron probes can be used on the outer pins, many similar available on ebay, search hook probe

User avatar
davidcoton
Posts: 4139
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Want solderless headers for the Pi0?

Fri Jan 29, 2016 8:03 pm

Different supplier, different colour( but two colours in the pack!!), lower price!!!
http://www.ebay.co.uk/itm/200Pcs-Green- ... 1676543991
Signature retired

User avatar
morphy_richards
Posts: 1603
Joined: Mon Mar 05, 2012 3:26 pm
Location: Epping Forest
Contact: Website

Re: Want solderless headers for the Pi0?

Fri Jan 29, 2016 8:19 pm

Doing a general search for PCB test pins also yields potentially useful results eg.http://www.toby.co.uk/datasheets/sectio ... 2015095007

mattmiller
Posts: 2106
Joined: Thu Feb 05, 2015 11:25 pm

Re: Want solderless headers for the Pi0?

Fri Jan 29, 2016 9:36 pm

Can't see anything suitable there - even the eye type one would probably short out to the next pin

User avatar
morphy_richards
Posts: 1603
Joined: Mon Mar 05, 2012 3:26 pm
Location: Epping Forest
Contact: Website

Re: Want solderless headers for the Pi0?

Fri Jan 29, 2016 11:13 pm

mattmiller wrote:Can't see anything suitable there - even the eye type one would probably short out to the next pin
Probably right but I was quite interested in the "TEST-3 Series Low Cost Wire Form Test Points". The loop is 2.7 mm diameter so would not reach the next pin. It doesn't say what the gap is between the two legs of the spring but it looks to be less than the diameter of the loop. At best I reckon it would be wobbly and temporary with a lifespan of a few minutes.

User avatar
rurwin
Forum Moderator
Forum Moderator
Posts: 4258
Joined: Mon Jan 09, 2012 3:16 pm
Contact: Website

Re: Want solderless headers for the Pi0?

Mon Feb 01, 2016 11:46 am

Another option, but rather expensive: http://uk.rs-online.com/web/p/pcb-headers/6935416/

User avatar
B.Goode
Posts: 8514
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Want solderless headers for the Pi0?

Mon Feb 01, 2016 12:09 pm

rurwin wrote:Another option, but rather expensive: http://uk.rs-online.com/web/p/pcb-headers/6935416/
Good spot! Might be worth a try...

(The housing looks as though it will obscure the mounting holes on the PiZero - probably not a major concern - but I would also be worried about fouling on the microSD slot and the tiny smd components half-way along the SoC chip.)

I don't think the price is that bad for someone who does not want to consider soldering a connector for whatever reason - quite comparable to the price of the HDMI and microUSB adapters that most people will need.

User avatar
morphy_richards
Posts: 1603
Joined: Mon Mar 05, 2012 3:26 pm
Location: Epping Forest
Contact: Website

Re: Want solderless headers for the Pi0?

Mon Feb 01, 2016 8:10 pm

And another solution from the magpi...
Image

blaablaaguy
Posts: 623
Joined: Sun Sep 27, 2015 3:26 pm

Re: Want solderless headers for the Pi0?

Tue Feb 16, 2016 8:39 pm

Apparently those things can damage the pcb you insert them in.
This signature intentionally left blank.

User avatar
rpdom
Posts: 15184
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Want solderless headers for the Pi0?

Tue Feb 16, 2016 8:48 pm

morphy_richards wrote:And another solution from the magpi...
Is that a prototype Zero in that picture? It doesn't seem to have the composite video holes.

User avatar
rurwin
Forum Moderator
Forum Moderator
Posts: 4258
Joined: Mon Jan 09, 2012 3:16 pm
Contact: Website

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 12:37 am

blaablaaguy wrote:Apparently those things can damage the pcb you insert them in.
Yes. They're good for one insertion but anything like this is likely to damage the through-hole plating if not the PCB itself.

texy
Forum Moderator
Forum Moderator
Posts: 5157
Joined: Sat Mar 03, 2012 10:59 am
Location: Berkshire, England

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 2:15 pm

rurwin wrote:
blaablaaguy wrote:Apparently those things can damage the pcb you insert them in.
Yes. They're good for one insertion but anything like this is likely to damage the through-hole plating if not the PCB itself.
I was going to suggest push-fit connectors, however they usually require quite some force to fit them, depending on the number of pins.
Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

User avatar
chrisoh
Posts: 217
Joined: Sun Dec 06, 2015 8:50 pm
Location: Essex, UK

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 2:22 pm

rpdom wrote:
morphy_richards wrote:And another solution from the magpi...
Is that a prototype Zero in that picture? It doesn't seem to have the composite video holes.
I'm curious about this too :)
Raspberry Pi 3 model B Idle @ 250mA
  • HDMI +200mA
  • Minecraft 1.9 Server +100mA
  • 2.4Ghz dongle +20mA

texy
Forum Moderator
Forum Moderator
Posts: 5157
Joined: Sat Mar 03, 2012 10:59 am
Location: Berkshire, England

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 2:28 pm

Life is too short. As it was from the magpie mag then it was probably a pre-production prototype used for the article prior to publication.
Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

User avatar
rurwin
Forum Moderator
Forum Moderator
Posts: 4258
Joined: Mon Jan 09, 2012 3:16 pm
Contact: Website

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 2:41 pm

Way outside the box here, I'm thinking that blutak is fine in the very short term but it's too soft. The wires will migrate through it and stop making contact. What you need is something with a little spring to it.

And then I thought of ear-plugs. As in these things: http://uk.rs-online.com/web/p/ear-plugs/7858516/ They are highly mouldable but spring back to shape. I doubt you could poke them into the hole along with the wire though. Maybe cut a bit off? Still fiddly. Maybe part of the solution though.

And then I thought of dental points: http://www.ukdentalsupplies.com/cgi-bin ... aGP10_2d90
These are tapering cylinders of latex* and absurdly cheap (£6 for 120) that you could use like matchsticks to jam a wire in a hole. They taper from well under 1mm to something over 1mm. They've got a reasonable strength along the axis so they should be usable. I'm sure your dentist could let you have a few to experiment with.


----
* https://en.wikipedia.org/wiki/Gutta-percha

mattmiller
Posts: 2106
Joined: Thu Feb 05, 2015 11:25 pm

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 6:03 pm

And then I thought of dental points:
Like idea of a jamming mechanism

Its made me thing about just super-gluing an extended header (pushing pins through from underneath)

Going to see if its reliable enough to plug an addon-board and see if it works!

User avatar
rurwin
Forum Moderator
Forum Moderator
Posts: 4258
Joined: Mon Jan 09, 2012 3:16 pm
Contact: Website

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 8:38 pm

I'm not convinced. There's no force pushing the wire against the hole and a good chance it will be pulled between the two by capillary action.

blaablaaguy
Posts: 623
Joined: Sun Sep 27, 2015 3:26 pm

Re: Want solderless headers for the Pi0?

Wed Feb 17, 2016 9:04 pm

I think thes guys have them (solderless headers): http://www.toby.co.uk/index.aspx

Theyre not on their site tho, so youl have to email them or something.
This signature intentionally left blank.

User avatar
mahjongg
Forum Moderator
Forum Moderator
Posts: 12219
Joined: Sun Mar 11, 2012 12:19 am
Location: South Holland, The Netherlands

Re: Want solderless headers for the Pi0?

Thu Feb 18, 2016 12:19 am

morphy_richards wrote:
rurwin wrote:These might be worth experimenting with: 200 x Ted Ceramic Bead Ring Head Gold Tone Copper PCB Test Pin Terminals
I have no idea if they would fit or make a secure connection.
Worth a punt will order some, thank you :)
these are for soldering into test points (holes) they are NOT solder less headers, which are stupid by the way.
Just learn to solder!

Adrianfu
Posts: 45
Joined: Tue Dec 01, 2015 7:13 am
Location: Yarraman Australia

Re: Want solderless headers for the Pi0?

Thu Feb 18, 2016 1:26 am

rurwin wrote:If soldering headers onto thirty Pi Zeros has you in a cold sweat, contact your local Amateur Radio club. There's at least one in every town and they are chock-full of lovely people who will volunteer to do the job for free.

OTOH, for one-off when you haven't got a soldering iron, then solderless headers are a good option to have.
If I was closer I would do it for him

Adrian VK4KL

blaablaaguy
Posts: 623
Joined: Sun Sep 27, 2015 3:26 pm

Re: Want solderless headers for the Pi0?

Sat Feb 20, 2016 10:29 pm

I got free samples! Three of each header type! Unfortunately they weren't realy worth it. Too tight or something, didnt end up using them. Oh well- at least they were free :)
This signature intentionally left blank.

ProperNoun
Posts: 1
Joined: Wed Feb 24, 2016 10:00 pm

Re: Want solderless headers for the Pi0?

Wed Feb 24, 2016 10:11 pm

If you can find them, something like these might work: http://www.ebay.com/itm/1PC-NEW-10PIN-S ... 1511412820

If anyone tries them out, let us know.

Return to “General discussion”