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Bobricius

2,204 orders since Sep 27, 2013

Sarisske Dravce, Slovensko, Slovakia

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Have you seen my other products? What you think? Your idea will be included in the next version! Fell free to write me. Anyway, your purchase or contribution via www.patreon.com/bobricius will help.

Overall Rating:

Review Breakdown

5
54 4
28 3
4 2
5 1
1

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Average Ratings

Product: (4.75)

Documentation: (4.27)

Shipping: (4.77)

Communication: (4.64)

All Reviews

Eric | March 30, 2024

Nice kit

For mini PiQWERTY USB wired mechanical thumb keyboard

I've made 3 of these now. They are a nice kit and handy little keyboard.

The documentation is a little confusing because there are links here to different websites with different versions of the keyboard with different software files.

Here are my additions to the documentation that I learned.

Though the PCB has several pads for other components you really only need the raspberry pico and the 37 tactile switches to let it work as a keyboard. It has space for the power switch but isnt needed either since it is on by default when plugged into the USB cable.

For the firmware the file I used was called "Armapad36v4-pico2023.ino.rpipico.uf2" linked above under "datasheet." To install, I plugged the new pico into my PC while holding down the "bootsel" button on the pico. This makes windows recognize the pico and open up a file explorer window to the pico. I then copied the above .uf2 file to that folder. The pico automatically installs it and reboots (all within 1 second) and is then ready to go as the keyboard. For those others like me who are new to this, you dont need Arduino IDE or circuitpython to get this kit running. Just drag and drop that .uf2 file!

I used M2x10mm screws and ~4mm nylon spacers to hold the top and bottom PCB's together.

the keyboard is automatically recognized and works with my windows PC and a couple raspberry pi projects.

The only issues I had were the pico not liking some of my USB cables. But that's of course not a problem with this kit. But if something does not seem to be working, try a different cable.

Michiel | Feb. 4, 2024

what a nice diy zx spectrum is this

For PICOZX - Handheld ZX Spectrum 128k + other 8bits

The quality of the pcb's are exceptional quality, the solder mask on the pcb helps a lot to locate which part needs to go.
i really enjoy the build! About the documentation, i give it a 3 star, since the url points to hackerspace website without any documentation.

overall im really happy with it!

Johannes | Feb. 1, 2024

Really nice, tiny and stylish Keyboard with a little extra

For mini PiQWERTY USB wired mechanical thumb keyboard

This Keyboard is really awesome. I mean its from Bob, and he always delivers fantastic pieces of technology. Its not my first buy from him, he really also deservers to be sponsored on patreon!

The Keyboard works as intended, soldering took about a hour. The links in the text could be updated imho.

- I was not able to flash it with arduino ide, but thats pretty sure on my side
- It took some time to finde the circuitpython file, as it is linked under "Datasheet". (If you are as blind as me this could help^^)

Would by again!

David | Dec. 3, 2023

[Update]: An amazing tool for making your rpi400 standalone.

For Raspberry PI 400 cyberdeck / cyberdetox display

I had some trouble with the device at first and this is an updated review. The store owner, Peter, attempted to communicate with me sooner, but I seem to have missed his message. We recently corresponded and he was able to assist me in getting the device working. The codebase may be easier to work with now that the device itself is up and running.

This allows me to perform ARM development with ease, without having to invest in high-end ARM (M1 and similar) devices. The screen is small, of course, but I am accustom to working in restricted conditions and often find them pleasant to work within.

I'm very excited by the results now that it's set up and I'm looking forward to buying more of the handhelds available from Bobricus.

Thanks Peter!

Eric | Nov. 11, 2021

Good product, code little bit hard

For PICOmputer - RP2040 Raspbbery PICO - QWERTY devkit

Board is very nice but docs with circuit python are not easy to find. I am a newbie with python. I am working on Bobricius ideas who writes programs with arduino ide rather than python.
I hope to reach the goal to create a Lora transceiver with circuit python. I will keep you informed soon.

Michael | Oct. 24, 2021

Fills a need in the market - one of a kind

For mini PiQWERTY USB wired mechanical thumb keyboard

Great little keyboard - easy plug and play - looks like it will last a long time - sturdy construction. Would have preferred the USB out to come out from the side - but just a personal thing - at a pinch I could move it, but I won't. Currently using it with 5" touch-screen UMPC - Higole F1 - just not usually enough room on the screen for on-screen keyboard to be effective - this fills the gap in tech perfectly. Thanks Bobricus well done.
A final point - I wear glasses and the symbols embossed on the keyboard face are understandably tiny - really tiny - I struggled to work out what was what at first - but once you know it's not too hard.... it's clear as it can be given the space available - but for those with less than perfect eyesight you need to bear this in mind.

Alex | April 30, 2021

Great item, nicely done.

For Joule Thief SMD DC/DC white Led

These joule thieves are great. Very efficient way to save energy and to completely use up a cell. Great compact size too.

Alex | April 30, 2021

Works very well

For NANO - Joule Thief SMD DC/DC white Led

Eak out the last bit of power from a battery or power low spec components efficiently. Nicely executed mini joule thief.

Per | April 26, 2021

Well done.

For Joule Thief SMD DC/DC white Led

Very compact and professionally done, works fine. Adding characters since for some reason this review must be 100 characters or more.

Thierry | Jan. 25, 2021

An excellent product - for advanced devs...

For DiXi - arduino SAM ARM D11 USB stick

The Dixi I ordered 6 days ago arrived already today in France. I’m amazed by the small size and the functionality!

Why did I write “for advanced devs” ?
It’s not plug and play. If you want to use the Arduino IDE (which is still great for quick checks and hacks), you have to install the Arduino SAMD cores first, and then, after adding an URL found on GitHub to the preferences, the Mattairtech cores which unfortunately seem not longer to be maintained (last version looks like it is from 2018). The linked Mattairtech website is blank, which gives me a doubt about the future.

But if you are experienced and don’t need all that Arduino whistles and bells, you have a dev board with an excellent quality/price relationship.

Kayla | Dec. 14, 2020

Beautiful!

For mini PiQWERTY USB wired mechanical thumb keyboard

Starting with the obvious: the keyboard works just as expected, no issues at all.

Apart from that, it just looks absolutely beautiful! The gold-black combination makes it look really stylish and the font/icons used fit verly well. The only thing I find aesthetically non-fitting is the silk-screened board identifier from the manufacturer on the front. It might be worth placing that manually in a different place.

My only other suggestion would be to include a set of standoffs and screws. I happened to have a bunch of them, but not everybody might.

Shipping was a bit slow, but I'm attributing that to the current global situation.

Remi | Aug. 26, 2020

super !

For Solar flashing green diamond LED earrings, pendant

Fonctionne correctement à la lumière du jour ou d'un éclairage.
Effet garanti !
Gadget bon marché et très "fun"

Alan | March 4, 2020

cool earring, elegant design

For ArmaLamp - supercapacitor powered solar night lamp

Love this tiny earring. Beautifully designed. Works just as advertised. Took awhile to arrive but it came a long way.

Phil | May 1, 2018

Perfectly does what it should

For Coin cell battery emulator CR2016/CR2032

I have bought this adapter as my son's pokemon go plus device is constantly running out of battery. Due to the fact, that he is running around with a powerbank anyways, I thought that it would be awesome, if the device was powered by usb/the powerbank instead.

Reworked the devices housing a bit, so the adapter could reach out. Bam. Works like a charm.

Thanks Peter, also for the side communication with some dumb questioning from my side :)

Klaus-Dieter | Feb. 25, 2018

Very interesting and helpful product

For Bare PCB AVR fuse bit doctor HVPP HVSP fix repair

A couple of weeks ago I damaged a ATmega32 and was curious if it's possible to fix/reset that chip instead of buying a new one. In the internet I found the fuse bit doctor, ordered the board and completed it myself because I already had most of the necessary parts available. After completing it, it only took me a couple of minutes to fix that chip and an other one (ATmega328) as well. The most difficult part for me was to get the serial connection to the PC up and running. But once that was fixed it was absolutely easy to repair the chip.
The latest version of the board is not completely documented in the internet and therefore I had to ask the supplier. But I received the answer almost immediately.
Overall I'm very satisfied!

Ken | Sept. 13, 2017

Great and Cool Product.

For ZxERO - Pi Zero keyboard no only for ZXBaremulator

Wish there was a few samples (code) on GIT, but nice board, works perfectly, fun implementation of an Arduino Zero.

Lester | Sept. 3, 2017

works great

For New USB Lithium Ion coin battery charger LIR2032

Charges LIR2032 in a few hours. Red LED = charging; Blue LED = charging complete.
I would recommend and would buy again.

Rene | Aug. 21, 2017

Item as advertised

For USB Lithium coin cell battery charger ML2032

Item as advertised, documentation is not totally clear as the translation is kinda hard to understand (led light always no charging end detection)

I assume it mean the led is always on and that there's no end of charge detection.

It also say (just leave battery in charger about 24Hr or More) this again is not clear but I will simply monitor the first charge and see if there's a voltage detection or not.

Item is well made and since those battery are easy to charge it is probably not an issue to charge for long time, anyhow just do not leave them unattended as with any Lithium battery.

Rene | Aug. 21, 2017

Item as advertised

For USB Lithium coin cell battery charger ML2032

Item as advertised, documentation is not totally clear as the translation is kinda hard to understand (led light always no charging end detection)

I assume it mean the led is always on and that there's no end of charge detection.

It also say (just leave battery in charger about 24Hr or More) this again is not clear but I will simply monitor the first charge and see if there's a voltage detection or not.

Item is well made and since those battery are easy to charge it is probably not an issue to charge for long time, anyhow just do not leave them unattended as with any Lithium battery.

Edit: Based on the description online it seem to take 24 hr for a charge

Daniel | Aug. 3, 2017

Works as advertised, was already very helpful!

For Bare PCB AVR fuse bit doctor HVPP HVSP fix repair

I received the board and the programmed chip within a few days. The board was soldered (pretty much only after the silkscreen and images on this campaign) and after a few electrical tests I turned it on for the first time and tested a few (serial programmable) chips lying around with success.

The master test however was a number of AT90USB1287 which use parallel programming, so I soldered the QFN chips onto an adapter, wired it up, turned it on -- and low and behold: It claims that the reset worked (after allowing a flash erase)! Yay!

The documentation is a bit on the meh side, otherwise it's a nicely working product quickly shipped.

Felipe | June 21, 2017

Received items

For Supercapacitor 20 LED earrings / necklace

After 1.5 months waiting (not your fault but this slow snail mail) ítem came in an excellent condition, it was a surprise for the wife and very welcomed, she is very happy !, amazing gift, thanks guys !.

Richard | May 30, 2017

Excellent joule thief

For Joule Thief SMD DC/DC white Led

I'd buy them again. Small size with thru holes! Original package was destroyed in shipping. Seller was very responsive and quickly sent a replacement.

Ka Hing | March 24, 2017

Nice product

For LTC3108 body heat Energy Harvesting breakout TEG

It suits my project which relates to thermoelectric energy harvesting. It arrived with good condition and the shop owner was helpful in problem answering too.

Kathryn | March 6, 2017

good piece of jewelry

For Supercapacitor 20 LED earrings / necklace

Bought it for my girlfriend, she absolutely loves it. shipped within the expected time frame and without any flaws.

Emil | Jan. 28, 2017

Very nice and small breakout board

For LTC3108 body heat Energy Harvesting breakout TEG

I have been building various thermoelectric generators, using what’s called a "Joule thief" to boost the voltage from thermocouples. However, the Joule thief isn't a very efficient solution. Instead I have been trying to use the chip LTC3108, which is a very tiny little thing and therefore very hard to solder by hand. This board makes it easy to use and work with the LTC3108, and the board comes in a good size; easy to solder. One thing I would have preferred is that the little LED soldered to the board was "optional", as it consumes some of the power generated by the thermocouples. Yet it is easily removed.

Juan Blas | Feb. 26, 2016

Recomendado

For USB Lithium Ion coin cell battery charger LIR2032

Producto como se describe. Eficaz y muy pequeño. Carece de carcasa pero se vé resistente (no obstante, tendré cuidao ;) ) A España llega rápido (5 ó 6 días) pero luego correos lo tuvo una semana en la oficina (...) Así que no recomiendo pagar el suplemento express.

Rob | Feb. 8, 2016

excellent device, excellent engineering, excellent price

For PicoDuino Attiny85 arduino & RGB led

A review from a noob arduino user. The PicoDuino was quickly delivered (3 days bubble envelope). A header and a small plastified lookup table is a nice side delivery in the package. The PicoDuino is an excellent starter device. Smaller than a trinket, directly USB connected, no cable hassle. Bright, BRIGHT rgb led. Nicely engineered and goldplated for good contact. Highly recommendable for starter or starter project. Do remember you can program it in arduino by clicking upload and only then plugging it in... Some beginners documentation step by step might be welcome.

Gonzalo | March 25, 2015

Great product

For PicoDuino Attiny85 arduino & RGB led

It is a useful wonderful device, that works great. I used Digispark to documentation and libraries to make a one key Keyboard.
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