Due to being rather busy with "life" as such, I can only ship once a week.
Tiny AVR-ISP pogo-pin programming adapter [50mil pad spacing on PCB]
Tiny AVR-ISP pogo-pin programming adapter
Useful for very small circuit boards, where every mm counts and you can't do without a programming connection. Pogo-pin spacing is 1.27mm (50mil). The requir…
Useful for very small circuit boards, where every mm counts and you can't do without a programming connection. Pogo-pin spacing is 1.27mm (50mil). The required board-space for this connector is just about 1/4 of your typical 6-pin ISP connector.
The adapter does not self-lock to the target board and requires to be pressed down while programming. Pin alignment is accomplished by small drill holes in the pads.
What's included
1x circuit board
1x 3x2 pin male header (2.54mm / 100mil raster)
6x spring-loaded pogo-pins
Assembly notes
Assembly is reasonably easy if you're a regular user of the soldering iron and like tiny, fiddly SMD bits. However, you will definitely need patience.
The long pads on the PCB help with alignment of the pins. Flux the board, align a pin so it sits right in the middle of the split pad, tack it on one side, press it down with tweezers and solder the other half of its length. Finish the other 50% as before. Use flux liberally, be patient. Make sure you don't get any solder on any moving parts.
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Review Breakdown
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2
4
6
3
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2
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1
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Average Ratings
Product:
(4.62)
Documentation:
(4.25)
Shipping:
(4.88)
Communication:
(4.88)
Douglas |
Dec. 30, 2017
Great idea and implementation. Somewhat fiddly construction.
This is a great alternative to more expensive ISP solutions that take up more space on your board. Clean, well-thought-out design and seems sturdy. Easy to use, though it does not clip on - you must hold it in place. Assembly instructions could be more clear and easier to find. I had to look in several places to find the correct orientation for the 6-pin header. The link printed on the board does not take you directly to the page you need. But that is a minor complaint; the product itself could hardly be better.
Martin |
Sept. 25, 2017
Nice design, assembly a bit challenging
I really like the idea and the very small ISP footprint specification; it is very useful for my SMT ATTiny designs. The assembly of the adapter is a bit challenging - I managed to build two that came out okay, but you really need to be patiend and align the pogo pins carefully.
Maybe a small secondary PCB with holes for aligning the pogo pins, at least as a soldering aid, would be useful.
Paul |
June 6, 2016
Handy for small AVR layouts, if a little tricky to solder
Fully-assembled, this is a lovely little product. Gives you a half-pitch (50mil) pin spacing 2x3 pogo bed, to attach the usual ISP signals to. This is lovely for getting a really small board layout - I once managed to squeeze the required bare pads onto the underside of the board directly beneath an ATtiny84 chip, thus wasting zero extra board space. Being a straight-through adapter, it doesn't really matter which way round you mount it on your 6way ribbon cable, just make sure to align it on the target board in the same orientation.
My advice would be to ensure you're very careful soldering it up. These tiny little pogo pins can be very delicate, and it takes a while to get all the pins aligned precisely parallel to ensure no shorting out between them. Also when designing a board with bare pads on it, make sure to place at least one via drillhole in the centre of a pad, to give the points of the pogo pins something to grip onto so the whole thing doesn't slip. It wouldn't take much slippage to cause a short, potentially destroying your chip.
Ontje |
Oct. 22, 2015
Perfect for tiny projects
This is a great little adapter! I pre-tinned all the pads on the PCB used some scotch tape to hold down the pogo pins while soldering - which made it actually quite easy to get this tiny thing assembled. Saves so much space on the PCB I could actually fit the ISP header inbetween the SOIC ATtiny84 pins and now program from the bottom side of the PCB.
Response from madworm | Oct. 23, 2015
You know what, I've never tried taping the pins down myself. Maybe I should give it a try :-P
Bernie |
July 23, 2015
Difficult to solder but well worth the effort
As others have said, even though it is extremely difficult to solder all the pogo pins so they remain parallel and unbridged by solder, this is a fantastic little kit that is well worth its cost. My board designs are now much more compact. I am waiting for my first batch of boards with the compact ICSP pad layout to be delivered from the fab house, but have all confidence that it will perform as required. I have found that heatshrink tubing over the part of the "key" to which the pogo pins are soldered, not only help to avoid shorts when accessing the pads in tight areas and mechanically strengthen the joints, it also covers up my shoddy soldering!!
Response from madworm | July 23, 2015
Good you got it working <phew>!
If you happen to be on twitter, I'd like to see your modifications. There's always room for improvement.
Mike |
Dec. 3, 2014
Excellent product
Finally got around to using this last night and it is awesome! My project will all be smaller now with the help of this adapter.
Mike
Response from madworm | Dec. 10, 2014
Glad you like it so much :-)
One has to wonder how we've manged to live with the standard 3x2 pin header for so long. Especially so for tiny creations.
Robert |
Sept. 18, 2014
Works as designed, great Idea!
Some tips on how to solder aligned would be great.
Response from madworm | Dec. 10, 2014
I promise to improve the description, once the latest revision boards are in!
Nicholas |
Aug. 22, 2014
It's tiny - requires expert soldering skills
Words and pictures did not fully express how truly tiny this thing is. Although the pins are long, the space between them makes this like soldering closely packed 0603 SMD parts. Definitely not for the faint of heart. I deferred to an expert coworker to assemble mine. I've no doubt I would have made a hash of it.
At the time (and currently), an assembled version is not an option. I would have gladly paid US$20 more to buy an assembled one.
I haven't actually used it yet, as boards with the correct footprint have not come back from the fab yet, but I have experience with a full-size (.1") pogo ISP adapter, so I have no doubts that it will actually work as advertised. And being able to shrink the ISP footprint is worth it in the end.
Response from madworm | Aug. 25, 2014
Thank you for your feedback. I have adjusted the description, hopefully it's now more obvious one needs to be very good with the soldering iron. I'd like to offer assembled products, but there are some regulation issues that prevent that. And I can't get around them as of now.
Herve |
May 29, 2014
A must to have for the electronic geek.....
No need to solder the isp connector on each board just to download a bootloader or a new soft.....................
Philip |
April 13, 2014
Neat little tool!
I've used the adapter for a project, and I'm very pleased with it. Besides the smaller size, the change to SMD pads for 4 out of the 6 contacts also frees up space on the other layers.
Response from madworm | April 13, 2014
Good to hear it worked! Of course you can change the footprint as you need, as long as you keep at least 2 drilled holes. The more holes, the better the alignment will be.
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