These are a huge time saver, in the past I've used standard d1 mini perf boards for prototyping, but the breadboard style of these makes for a much tidier, quicker and more reliable end product. Can't wait to use it! Dealing with Azduino has been great too!

Sohier | July 7, 2023

Tiny and Awesome Board

For Easy touch proximity sensor (assembled)

This is by far the smallest touch sensor I've seen, and its adjustable! I'm building an art display for home assistant and this is the perfect touch input device, you can't get smaller and cleaner than this. Spence is also great to deal with, friendly and helpful.

Robert | May 13, 2023

Handy Little Breakout Board for the New ATtiny412

For ATtiny412/402 dev board, Arduino compatible

I am porting a project originally done with a PIKAXE and need a platform to breadboard the other components on. It has 2 hobby servos, 2 switches and an LED which comes on the board, so this fit the bill perfectly. The Arduino library he wrote Just Worked (tm) and exposes lots of hardware options that I plan to explore on this and future projects

I also wanted to try using UPDI programming. That took a little fiddling to get working with the "USB to Serial USB to TTL CH340 Module" from HiLetgo and a BAT54C Schottkey diode wire according to instructions on the github link, but it all worked great in the end.

My only suggestion would be to replace the photos and schematics here with the current Rev B boards or put them in a separate document

Bradley | April 13, 2023

Great deal, all as advertised

For Mini protoboard pieces - 28 pcs set only $6!

Got exactly what was advertised. Very happy with this purchase as I was looking for a few of the pieces included for a project.

Michael | June 30, 2022

So much better than any board I've used before

For Bare boards (various)

This is my first experience using PCBs outside of the mass online suppliers. I have been burning up those "400w 15A mosfet boards" that have become very popular and decided to try something else. Immediately you can feel the difference - these boards make the ones I've been using seem like paper. These are SOLID. They have weight to them with more copper than I ever expected. Clear labels I can read without a magnifying glass. The quality is outstanding and the price is lower than I ever expected - wish I started using these sooner and can't wait to try out the esp32 proto boards.

The MOSFET guide created by the store is *SO* helpful. A crazy amount of valuable information perfectly delivered. Most resellers won't even tell you the model numbers in their board, while this guide was a recipe on how to build your own successfully.

Steve | May 11, 2022

Great boards!

For ATtiny3227/3217/1607 dev board, Arduino compatible

Bought two of these both with boot loaders and auto reset. One 3217 and one 3227. Great documentation available and worked exactly as expected with the Arduino IDE. Cool project and lots of fun. Thank you!

Dann | Feb. 5, 2022

Sweet little AVR-DA dev boards, and ~incredible~ support!

For AVR128DA development board - Arduino compatible!

Note: I have revised my evaluation of the Documentation upward from 4-star to 5-star. After a bit of sober reflection, I decided I wasn't being quite fair because I've been "out of the game" for a few years now. Most customers for this product are probably current and active in Embedded and Arduino, and would have easily figured out the few things that puzzled me. Besides, the stellar, over the top support that Spence has provided has very effectively filled in any gaps that may exist in the docs, and observing how proactive Dr. Azzy is with maintaining and updating his software and products, I'm sure my stumbles will eventually end up in improvement in the docs as well... And now, for my story:

Thanks to government stupidity (shutting down and destroying the supply chain), I've had to launch a complete redesign of our flagship product's electronic PCB... I thought I was going to have to go with some weird import part, or (gag!) an Intel chip?

Late last year, I discovered there was a new Atmel series of parts out, and (better yet) there were even modest quantities in my target 32pin SMT package actually available to buy! So, I started looking around for a suitable development board. I wasn't thrilled with the Microchip dev board offering, but I found Dr. Azzy's sweet little boards here on Tindie. I ordered two right away, along with their color-coded pin sets.

While waiting for the boards to arrive, I contacted Spence with questions about his opinion of the viability of these parts (I had seen some scary comments about errata). His quick and comprehensive answers reassured me that I was on the right track, so I did a risk buy of the processors I'll need for my first build-out (before someone else could snap up the dwindling supply... thanks a bunch, Uncle Sam...).

The boards arrived quickly by Priority Mail; then life intervened, and I had a buncha other stuff to do. Well, this week I finally got a "round tuit" and started working with one of the boards. At first I just couldn't get it talking via the Arduino IDE. I suspected I was having problems with my Macbook Air M1 and FTDI driver latency...

Once again, Spence was quick as lightning to respond to my questions and issues via Tindie messaging. With his feedback and guidance, I got both of the boards up and operating, not only via the standard Arduino serial interface, but also via UPDI, a very sweet and fast serial programming option.

I can scarcely begin to tell you how pleased I am with this product, and even more so with the professionalism and strong and kind support of Spence Konde, the product developer. Between his fabulous and very detailed documentation, and his Johnny-on-the-Spot response to my cries for help, I have been blown away with the quality of his operation. You don't see enterprises this good every day...! My hat's off to Dr. Azzy and his entire operation! First Class all the way!

I will certainly be shopping here again and watching for new developments...

PRO TIP: Avoid the trouble I had - be sure to download and install the latest version of Dr. Azzy's “DxCore by Spence Konde” Arduino Board Manager Package here:
http://drazzy.com/package_drazzy.com_index.json

Mark | Oct. 28, 2021

Great dev board, amazing core, documentation exceptional!

For ATtiny3224/1614/1604 dev board Arduino compatible

I wanted to get started with the new(er) ATtiny 1-series and Spence (Dr. Azzy) had everything I needed! His "core" firmware is amazing, and the documentation is unrivaled - going beyond the core functions and deep into various chip features and bugs. His 1614 dev board was perfect for my initial breadboard protos, I ended up buying 3! Well made, thoughtful design and features. Thank you, Spence, for all you've done or the community!

Hyeon Sik | March 15, 2021

Nice board. It's working.

For ATtiny3226/3216/1606 dev board, Arduino compatible

I tested LED blink example with my Pickit4 debugger yet. but It's a good breakout board. I will test for motor driver module.

Julian | Jan. 6, 2021

very nice little board ATtiny412

For ATtiny412/402 dev board, Arduino compatible

The ATtiny412 UPDI board is great for getting started with the new ATtiny series microcontrollers. I had a little hickup during the UPDI programmer setup but Spence helped figure it out (on github) very quickly.
Wrote up how to set things up for the ATtiny412 board on my blog (http://julianstraub.com/posts/programming_new_attiny_microcontrollers/). In case its useful for anybody else (and so I remember myself ;)).

Stephen | Oct. 3, 2020

Great support

For ATtiny841 dev. board w/Optiboot (assembled)

I used the ATtiny841 dev. board to prototype a product for a client before committing to a PCB deign/build. The board was delivered promptly and I was quickly able to get start programming using Arduino. This process allowed me to fully debug the firmware so that the client's product worked out of the chute.

More importantly, the support I got from Spence was great. He answered all my questions promptly and explained some of the subtleties of Optiboot and programmers that would've taken me hours to figure out myself.

Good to see this level of competence and support!

Steve.

Marco | Sept. 4, 2020

Very good board

For ATtiny1614/3224/etc breakout board (bare board)

The quality is very nice. The boards are working as they should nothing to complain. However, i would have one recommedation for a potential next iterartion. It would be nice if the pads for the headers at the FTDI and UPDI interfaces were as large as the pads at the GPIO outputs. The smaller pads are simply a bit hard to solder. You need some extra flux to wet the small rings propoerly. Its possible bu not as comfortable as for the larger ones.
Thanks.

Marco | Sept. 3, 2020

Great Board

For ATtiny3224/1614/1604 dev board Arduino compatible

Well, it simply works. UPDI, Serial, LED.... For Optiboot programming you need to power cycle but this is OK. Everything is fine. Thanks!

Erik | Aug. 26, 2020

Work excellent, and any questions were quickly answered!

For ATtiny412/402 dev board, Arduino compatible

Spence has done an amazing job with these! They are super simple, so they end up being pretty cheap, but they have everything I needed on them. I had a misunderstanding, and one part where I just wasn't finding the correct part of the datasheet to answer my question. In both cases, Spence responded to my questions very quickly and gave me a thorough answer (and pointed me to the part of the datasheet that I missed.)

Wonderful service!

Thanks again!

Erik | Aug. 19, 2020

Minimalist board that works just as advertised.

For ATtiny412/similar breakout board (bare board)

There's nothing extra on this board, but since it's something geared towards such a cheap chip, it really doesn't need much. It had everything I needed, and being simple meant that the cost was also kept down. Spence was also wonderful in answering a couple of questions I had very quickly. He really knows these inside and out, and it shows!

I'm an engineer and needed a development board to work with while testing things out before creating my own board for a customer project. This fit the bill, and was easy to work with, once I figured out a couple of footnotes in the datasheet, which Spence was also able to quickly point me towards.

Kevin | June 30, 2020

Awesome board!

For ATtiny3227/3217/1607 dev board, Arduino compatible

Really makes developing on the newer ATTiny chips a breeze. Also, the seller actively develops ATtiny Core on github which has been a huge boon for anyone trying to get into these chips. A+++

Kevin | June 30, 2020

Don't waste your time soldering leads

For Mini protoboard pieces - 28 pcs set only $6!

I'm a huge fan of these style of protoboards. I get tired of tying to get solder to jump across solder mask and making a mess. These boards make it super easy to add dual row chips and are worth the low cost.

Patrick | June 24, 2020

Good price fast ship

For 2" x 4" Prototyping/Project boards

The PCB was as described, good quality product. Shipping was fast and cheap. No issues with the product or the order.

Timothy | June 6, 2020

Nice breakout board, makes AtTiny SMT parts easy

For ATtiny3226/3216/1606 dev board, Arduino compatible

Great little board, plus Dr Azzy has supported the whole AtTiny community so much. If you have an old Nano, you can convert it into a UPDI programmer easily so don't need the bootloader.

Daniel | March 16, 2020

Super useful

For Mini protoboard pieces - 28 pcs set only $6!

I love these - I got the mega pack and there's such a great assortment of different small-sized boards. They're really great for making DIY breakouts and for projects which require a small board footprint. Definitely will be ordering more in the future.

Conrad | Feb. 21, 2020

Awesome protoboards!

For Mini protoboard pieces - 28 pcs set only $6!

It's great stuff. Just grab them, you don't know how much you need one of these little boards yet, but trust me you do.

Joseph | Jan. 26, 2020

Prompt shipping, works as described

For ATtiny841 dev. board w/Optiboot (assembled)

I bought two of the no-xtal, no-regulator boards for prototyping a project. I received them within a week. They are exactly as described on the site. I found all the documentation I needed on the site (mainly the schematic) and I did not have to ask the vendor any question. I was able to load my code via the serial port using the included boot loader. I did eventually erase the boot loader because i have different requirement for my project but it did work the first time.

Rami | Jan. 17, 2020

The most useful proto boards I've encountered

For Mini protoboard pieces - 28 pcs set only $6!

I stumbled onto these a few months ago, and as I used them for the first time recall wishing I'd found them sooner. They're quite re-workable and generally very high quality, on par with boutique electronics companies. Though these appear to be the only proto boards that are made in such supremely useful sizes and varieties. I wish Tindie had subscription orders for things like this; the thought of running out of them is mildly stressful, despite my not even knowing they existed a short time ago. Welp, Tindie requires a minimum char count for reviews, but there's no character counter on the actual review editor page, and I've forgotten what it is. I guess I could check the html source or the js console, or try submitting after each time I add a few words, at least trying to embrace brevity, but I'm highly caffeinated at the moment, so will instead continue my flowery novella, extolling the virtues of these proto boards. Oh no wait this seems to be enough characters. But yeah, thanks for this great variety and quality. Everyone should buy some of these.

John | March 13, 2019

Exactly what I ordered

For Breakout board for DFN/MSOP/WSON/VQFN-16 3-pack

Easy to communicate & deal with seller/manufacturer
Product arrived in time & good condition
Recommend this seller

Rebeca | Feb. 7, 2019

Great little board. Great tool.

For ATtiny841 dev. board w/Optiboot (assembled)

I am using this board to help me port a project over from Attiny84 code base to the Attiny841. DrAzzy: Do you have any tips and insights on doing that ? Maybe a list of differences between the 2 processors ? anything will help. Thanks!!

Response from Azduino by Spence Konde | Feb. 7, 2019

Thanks!

That's a good suggestion - I hadn't thought of writing up a guide to migrating to ATTinyCore from other cores, and to ATTiny841 from ATTiny84.

The main differences are:
ATTiny841 has two hardware serial ports, named Serial and Serial1; they can be used like the serial ports on any other AVR through ATTinyCore. The ATTiny84 has none (though if using my core there is a builtin software serial implementation that uses the ACO vector, so it can be used without interfering with use of PCINTs for other purposes like the SoftwareSerial library would - see the ATTinyCore documentation for details - probably not relevant to you).

ATTiny841 has an additional 16-bit timer, timer2, which is identical to timer1. The PWM pin assignments are also more flexible - you can move the PWM outputs around between pins; this can allow some behavior that could never be achieved on most AVRs (unfortunately the coolest thing I did with this is covered by an NDA, so I can't go into further detail)

The ATTiny841 has a hardware SPI, and hardware I2C slave interface, while the ATTiny84 has a USI.
If using the Arduino IDE with ATTinyCore, you can use unmodified libraries designed for SPI or I2C devices, and the version of Wire and SPI libraries included with ATTinyCore for the 84 or 841 (these versions of the library automatically use the correct implementation of I2C or SPI for the hardware, and provide a compatible interface, so no changes to the library are needed). With the Arduino IDE and other cores that support the ATTiny84, you needed to use a different library for SPI/I2C that used the USI, and modify the library for the SPI or I2C device to make use of that library instead of the standard Wire or SPI library. If you are not using the Arduino IDE, you need to handle this yourself (the most notable hardship is that I2C master requires a software implementation of I2C - ATTinyCore handles this for you in Arduino-land, but if using Atmel Studio or other tools, you'd have to do this yourself)

On the ATTiny84, the internal oscillator is pretty close to 8MHz across the whole operating voltage range (ie, close enough for serial to work), but strongly temperature dependent (particularly on the low end). On the ATTiny841, the internal oscillator is very close to 8MHz across the whole temperature range below 4v, but the speed increases rapidly as voltage increases above that - such that above ~4v, it's not close enough for serial to work if you don't account for that (typically by adjusting OSCCAL). If using a crystal, which I recommend for any application where serial functionality is used (on any processor, not just this one), this is not relevant.

I've added an issue to ATTinyCore on github regarding this; you can follow this for updates on the progress towards more formal documentation. https://github.com/SpenceKonde/ATTinyCore/issues/285

-Spence

Ton | Sept. 29, 2018

ATTiny841/84 breakout

For ATTiny841/84 breakout w/serial header (bare board)

Fast ship great product these boards will save me alot of time, when working with attiny84a chips
Thank you...AAAAAAAAAAAAAAAAAA++++++++++++++++++

Joe | Feb. 24, 2018

It's a heavy duty mosfet

For 4-Channel MOSFET board with optional driver

I'm using these monsterfets and Arduino to control my aquarium pumps. A lot of turning on and off to try and create ocean currents and tide, with the key word being try. I was using smaller mosfets but they failed after several months. I guess I was running them too close to their rated max...These monsterfets with 2A running through them have all kinds of headroom. The temperature increase when they are running is only 2F, so I don't need heatsinks but I'm running a small load. A much better option than relays, IMO.

Wilbert Magdeil | Jan. 24, 2018

Great product

For RN2483 breakout (bare board)

Fast shipping!Excelent quality. I ordered 5 pieces, they came in a tablet of 3 and 2 with v-scored division.

Paolo | Jan. 6, 2018

Nicely done!

For ATtiny1634 dev. board w/Optiboot (assembled)

TL;DR - All the love is in Azzy's ATTiny Core for the Arduino IDE. Buying his breakout boards helps to support him.

I'm incorporating a 1634 into a design I'm working on, because it has two hardware serial ports. I like to get an eval board up a running before I roll my own. Azzy's breakout board fit the bill nicely, the extra GND and VCC pins was a nice touch as I need a common ground for my motor drivers. While the project isn't open source hardware, Azzy's ATTiny Core MORE than makes up for it, and he includes the schematic.

BTW, I couldn't get Sparkfun's USBTinyISP to work and it appears I'm not alone, nor am I the type of person that will uninstall and reinstall everything just to get something to work. The AVRISP MKII works beautifully, kind of makes sense, right?

Response from Azduino by Spence Konde | Jan. 7, 2018

Thanks - glad to hear it!

The matter of ISP programmers and which ones work and don't has been a matter of some discussion. I have had similar messages from many users - people who swear that one or two programmers work great, but none of the others do. Unfortunately, there isn't much of a pattern to which the ones are reported to work, and which ones are reported not to. There is an open issue relating to problems programming with the USBTinyISP here - is this the problem you're having? https://github.com/SpenceKonde/ATTinyCore/issues/158

-Spence

Fred | July 18, 2017

Good quality pcbs, fast delivery

For Bare boards (various)

Purchased several pcbs for a led project which wasn't worth the touble to make my own pcbs for. Highly impressed with the quality and the service provided. Boards arrived quickly and communication prompt. Will buy again when need arises. Good seller.

Gabriel | June 30, 2017

Happy with this board

For ATtiny841 dev. board w/Optiboot (assembled)

I was happy to find a demo board for that chip. Great quality. The pinout is simple and efficient. Fast shipping.

Karel | June 26, 2017

I'm very satisfied

For RN2483 breakout (bare board)

Hallo,
I am very satisfied, the shipment has gone well, the quality is good
Kopsa
++++++++++++++++++++++++++++++++++++++++++++++++++++

Marc | June 14, 2017

About all I will need to tack some SMD parts as a prototype.

For Mini protoboard pieces - 28 pcs set only $6!

This set covers most all of the ICs and discrete components I need to tack up into a prototype.
Documentation? Really who needs that on this kind of break out board any ways....

Michael | June 5, 2017

Great product, here's some code samples to get started.

For LoRaWAN RN2483/RN2903 Breakout board (Assembled)

First off, great product, super friendly customer service, although not very helpful for any kind of "getting started" advice. Maybe, they figured, if you order these things, you'd better know how to use them? Anyhow, the breakouts arrived in excellent condition, and are super easy to connect with a Raspberry Pi Zero, or other embedded-Linux (or otherwise), micro controller.

These skeleton projects on GitHub, can be used to quickly test the connectivity of your UART connection to the RN2XX3 module, on eLinux. I hope they save someone else time in working with these terrific breakouts.

If using RPi3, or RPi Zero W, please note the UART is at: /dev/ttyS0

https://github.com/miguellan/python-lorawan-RN2XX3
https://github.com/miguellan/C-lorawan-RN2XX3

If they save you time, and you'd like to contribute, please do.

Thank you for making these breakouts, I highly recommend them.

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