Douglas | Dec. 30, 2017

Martin | Sept. 25, 2017

Paul | June 6, 2016

Ontje | Oct. 22, 2015

Perfect for tiny projects

For Tiny AVR-ISP pogo-pin programming adapter

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

Josh | Aug. 20, 2015

Nice board, good practice!

For MBI5030 PWM LED driver starter board - DIY kit

I am just starting out with surface mounting parts -- And this went really smoothly. The only problem I had was orientation of LED's. Support was prompt & helpful. I will buy more if another need/project comes up.

Response from madworm | Aug. 21, 2015

I have amended the documentation regarding LED orientation in the "source-code" repository on github (Docs subfolder).

Bernie | July 23, 2015

Difficult to solder but well worth the effort

For Tiny AVR-ISP pogo-pin programming adapter

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.

Trevor | June 3, 2015

8 way LED indicators

For 8-bit LED indicator

The 8 way LED indicator parts arrived VERY WELL packed downunder in just 16 days. Soldering the 0805 SMD LEDs was easy with a soldering iron and fine tip along with the obligatory magnifier light for us over 55s. Soldering the 1206 sized network resistors was considerably more challenging, despite being larger than the LEDs they each have four connections per side. Not for the faint hearted!

My first smoke test revealed two bridged connections on one resistor pack and three on the other. Some judicious soldering iron poking and 2mm solder braid fixed the issue.

An extra four LEDs (I ordered four boards) were provided which was a nice touch, though I'd have preferred a spare network resistor instead (not something I have any of, though I have plenty of the more common SMD LEDs and in fact used a green LED in the second row instead of amber to make life easier).

The completed board is a very nice addition for checking microcontroller pins, especially after hand soldering 100 pin SMD PICs to breakout boards! Good quality product.

Response from madworm | June 5, 2015

Thank You for the detailed review!

Some time ago I chose to add extra LEDs, as I had destroyed a couple myself during the early stages of this little device. Interestingly none of the resistor networks died, no matter how much I abused them ;-)

Jan | Feb. 26, 2015

Pretty cool LED indicator

For 8-bit LED indicator

I really like this 8 bit LED indicator - as it says in the tin: no worries about anode/cathode, either one or the other row works. For even more fun, wire the 9th pin to a microcontroller pin and change rows on the fly!

The kit was quite fun to solder. I didn't even destroy any of the parts, but the two spare LEDs are appreciated - Thanks!

One explicit instruction which would put my mind at ease before soldering: it doesn't matter which way the LEDs point, as long as they all point in the same direction ( - I hope that I understood the schematic and my multimeter readings correctly).

Response from madworm | March 5, 2015

LED orientation... that's actually in the description!

And I promise, I didn't just insert it :-)

Garrett | Jan. 27, 2015

Mike | Dec. 3, 2014

Excellent product

For Tiny AVR-ISP pogo-pin programming adapter

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.

Winchell | Sept. 26, 2014

Robert | Sept. 18, 2014

Works as designed, great Idea!

For Tiny AVR-ISP pogo-pin programming adapter

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

For Tiny AVR-ISP pogo-pin programming adapter

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

Dave | May 2, 2014

Works as advertized!

For 8-bit LED indicator

SMT soldering is not for the faint of heart, but it's doable. I ordered two just in case I borked one up, and sure enough I did :-) But it works and it works well.

It works great on a breadboard, but to plug it into one of the Arduino's ports I'd recommend soldering the common pin from the other side so you can use a wire to connect it to ground (or 5V, whichever you prefer).

Response from madworm | May 2, 2014

Should I add an option for spare parts? I assume you burned a couple of LEDs.

Philip | April 13, 2014

Neat little tool!

For Tiny AVR-ISP pogo-pin programming adapter

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.

Barta | Feb. 28, 2014

Dear Seller,

For Circular WS2812B + ATmega168 / 328 breakout board

I got your PCB. But why did you sent it to me in a big paperbox filled with garbage, for 5 USD? I think that you wasted my money. I like to receive such a small 4cm diameter PCB in a padded envelope, for much less shipping cost from Germany to Hungary. I am not satisfied with your shipping mode. :-(

Response from madworm | Feb. 28, 2014

I'm sorry you don't agree with my shipping method. I would prefer sending PCBs in letters as well, but that doesn't really work with German postal service.

The fee structure of German postal service is tricky for small parts:

0-20g, 21-50g, 500g-2000g, ...

The small weight letters can't be thicker than 5mm, or they will cost more. Now take a few circuit boards, add the letter, the padding, maybe some cardboard to make it stiff enough (so the thin boards don't break in the sorter-machine...) and the weight is above 50g and costs the rate I charge.

A long time ago, even before using tinde, I made the decision to ship everything in those boxes and be sure stuff arrives in good condition. I understand you're annoyed, but obviously I can't change what the postal service charges.

Michael | Jan. 7, 2014

8-bit LED indicator

For 8-bit LED indicator

I just got the 8-bit LED indicator and it works fine. I bought it because it gets tedious adding LEDs and resistors for status lights when I'm doing work on a breadboard. I have another version of a multi-LED indicator that has the ground pins separated by 0.3", which doesn't work as well in some breadboards, because the ground pins aren't aligned to the data pins. This LED indicator just uses another pin in the same row, and it gives you flexibility to use it as common anode or common cathode.

Response from madworm | Jan. 17, 2014

May it serve you well!

Michael | Jan. 7, 2014

Sew-on blinky coat button

For Sew-on Coat-Button - Blinky version

I've bought several of these with the 2 colors (red/green) that alternate between the colors. Due to the level of my soldering skills, I bought these pre-made. One thing to note that it is real easy burn out a LED if you are careless and have a wire touch one of the LEDs. I used an alligator clip to try out the button, and it touched a red LED and burned it out and also with jumper wire that I was testing the LEDs before soldering and it was a little too long. I recommend soldering the ground/power wires immediately, and don't try connecting the wires manually.

I haven't yet sewn them in as buttons, so I can't say anything about how easy it would be.

Response from madworm | Jan. 7, 2014

I'm sorry you had trouble with the power connections and blew a diode.

If it is any help, I can send you spare LEDs.

Robert | Dec. 25, 2013

The Knob

For The Knob

Great little device for development prototyping...

Response from madworm | Dec. 26, 2013

Glad you like it!

Uwe | June 25, 2013

Very helpful

For 8-bit LED indicator

For prototyping :). See the video on eevblog: http://www.eevblog.com/2013/06/04/eevblog-477-mailbag/ starting at 9:50

Response from madworm | Dec. 9, 2013

Glad you like it.

Navid | April 25, 2013

Reliable and easy to use.

For The Knob

Great product. Huge time saver.

Using 1 pin on a old AXE027 serial cable (for PICAXE Microcontrollers) I quickly has strings of serial running into my mac.

I quickly put together a quick Max/Msp sketch interpreting the serial data and has a midi controller working in no time.

The ASCI data it puts out is logical and the response time is fantastic.

Would have liked the status LED to be a the top (i.e opposite side to the pins) of the circuit board, but thats just a minor niggle.

Last thing, I have searched for the Ardunio code for this project and have come up short. Did I miss something?

I'm putting a full write up on my blog at http:://navidgornall.com

Response from madworm | April 25, 2013

I'm glad you like it and got it working so quickly ;-)

Now to your questions:

There currently is no Arduino-ized code, it is plain C/C++ without the "security blanket". But it is not very complex, so you should be able to wrap your head around it quite quickly. I think I added enough comments, and if not... you know where to find me.

However, you can use the avr-gcc compiler that is shipped with the Arduino-IDE - and I do recommend that. I compiled and tested the firmware that way.

As you use a MAC, I'm pretty sure you can use the bash-scripts that come with the code. They take care of all the compiling and code upload - assuming you have adjusted the config file according to your programmer type.

There used to be a link to code, but that has fallen victim to the recent Github integration. I'm told it will be fixed in the near future.

In the meantime, just click on the LAYOUT git repository, which should be shown somewhere above this section. You should find a link to the code repo in there (README.md)