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ubld.it Electronics

783 orders since Mar 04, 2014

Chase, MARYLAND (MD), United States of America

Ships from United States of America.

Custom Work Available

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Overall Rating:

Review Breakdown

5
6 4
10 3
4 2
0 1
0

Average Ratings

Product: (4.70)

Documentation: (3.95)

Shipping: (4.45)

Communication: (4.40)

All Reviews

Sean | May 26, 2020

Lots of random numbers!

For TrueRNGpro

The device came in a box on time. I would give the product 5 stars, but it didn't come with a USB cable to hook it up to my computer, so I had to dig one out from my box of cables. That minor inconvenience cost the product a single star. It is fickle on my part, I admit, but it's what it is. This is how we rate things nowadays.
The numbers come out really random once you setup the right dll on your machine and use a program to read from the com port. I found some code in C# on a random forum and it does the trick. It takes a little leg work to get your first batch of randomness, but once you have it, wow. It's really random. The good stuff. You can use it however you like. Think of the possibilities! I liked the whole process of the transaction.

Robert | July 19, 2019

Awesome version of a classic!

For Atari Punkr Kit

This Atari Punk Console (henceforth, "APC") is a stellar version of a classic design.

I was first interested in the APC via someone else's DIY kit. Upon digging further, I came across yet *another* different kit featuring more control options (touch-pads; photo-resistors). And again, my internet rabbit-hole went deeper, until I found the Ubld.it Atari Punkr Console kit. This was exactly what I'd been after: an APC of fine design, with incredible timing options!

Caveat time: The kit came with no instructions, instead directing to an online how-to with a handful of typos. [Note to UBld: I'll GLADLY proofread your guides, in exchange for kits. I'm a cheap partner!] However, once I'd gone over the parts list and how-to, everything was sorted and completed quickly.

On to the finished unit: It rules! My intention is to use this APC with a sampler. Even without said device, this APC is crazy-fun and definitely worth the price.

In closing: If you're new to DIY synth kits, APCs, or just soldering parts together for fun...the UBld Atari Punkr is (upon completion) an incredible device with myriad sounds at its disposal. You won't be disappointed!!

Christopher | Aug. 13, 2018

board delivers, but misses some finishing user features

For MIDI Breakout Board EZ

The board provides the required interface but leaves off just short of a "full" product. The component designations of the resistors are covered by the parts. Seeing how there is plenty of room on the board, the designators (R1, R2, D1, ...) should be put somewhere you can see them when the parts are installed. Sometimes you're working in a 3.3V system and the resistor values for that environment (47 ohm) for the series resistors on the MIDI output would be a nice-to-have. I don't know that this could hurt performance, but there is a pull down resistor sometimes used in circuits for the provided opt-isolator pulling down that unused pin; I added a 10K pull down to pin that for good measure. Some of the resistors, with a fairly sharp bend in the leads, don't fit easily into the PCB. Again, with room on the board, the spacing should be ample for the insertion of the parts and not cramped for no reason.

Ralphy | April 27, 2018

AMAZING

For Atari Punkr Kit

Had a lot of fun putting the kit together. Manual is very specific and easy to follow. Great Atari punk kit.

Michael | April 2, 2018

Fun item to build and use

For Atari Punkr Kit

I bought this kit for two reasons. The first was because I had recently read about the Atari Punk Console. It seemed like an interesting concept that I wanted to play around with. The second reason for the purchase was wanting some experience with soldering and assembly. I can say this was a great entry point with the documentation that was provided. Overall, I'm extremely satisfied with my purchase. There was also an issue where the USPS had temporarily lost the package. It showed as delivered, but was nowhere to be found. I contacted the seller and was responded to right away with suggestions. After notifying the USPS, the package made it to me. I would definitely considering buying from this seller again!

Pierre | Aug. 24, 2017

Good stuff, easy to assemble, easy to use, but not cheap!

For MIDI Breakout Board EZ

I would buy it again because of short delivery time, but other companies are cheaper. Anyway, it is a good choice, works without problem.

Bryan | Jan. 22, 2016

Working, except for udev rule, on Debian Jessie

For TrueRNG V2

I've been able to get the TrueRNG installed and working with rng-tools on Debian 8.2.

user@host:~$ uname -a
Linux host 3.16.0-4-686-pae #1 SMP Debian 3.16.7-ckt11-1+deb8u6 (2015-11-09) i686 GNU/Linux

user@host:~$ cat /etc/debian_version
8.2

user@host:~$ sudo /usr/sbin/rngd -V
rngd 2-unofficial-mt.14

Now I'm not having the entropy pool exhaustion that was causing my SFTP jobs to fail on my headless system with SSD (therefore low entropy from traditional interactive sources). Hooray!

user@host:~$ echo $(cat /proc/sys/kernel/random/entropy_avail)/$(cat /proc/sys/kernel/random/poolsize)
996/4096

I am currently trying to determine why the udev rule that I downloaded isn't working. It is not creating the symlink, which doesn't bother me too much (just set HRNGDEVICE=/dev/ttyACM0 in /etc/default/rng-tools). But because the rule does not appear to be firing, it isn't running the stty command, so the speed is very low.

user@host:~$ sudo dd iflag=fullblock if=/dev/ttyACM0 of=/dev/zero bs=64 count=4096
2340+46 records in
2340+46 records out
151223 bytes (151 kB) copied, 11.4995 s, 13.2 kB/s

user@host:~$ sudo stty -F /dev/ttyACM0
speed 9600 baud; line = 0;
-brkint -imaxbel

To fix this, I've just been running this after reboot:

user@host:~$ sudo /bin/stty raw -echo -ixoff -F /dev/ttyACM0 speed 3000000
9600

user@host:~$ sudo stty -F /dev/ttyACM0
speed 3000000 baud; line = 0;
min = 1; time = 0;
-brkint -icrnl -imaxbel
-opost
-isig -icanon -echo

user@host:~$ sudo dd iflag=fullblock if=/dev/ttyACM0 of=/dev/zero bs=64 count=4096
4096+0 records in
4096+0 records out
262144 bytes (262 kB) copied, 5.74209 s, 45.7 kB/s

I used udevadm test to discover that one source of the problem was ^M at the end of lines in the rule file. I fixed that.

Here's my current rule file:

SUBSYSTEM=="tty", ATTRS{product}=="TrueRNG", RUN+="/bin/stty raw -echo -ixoff -F /dev/%k speed 3000000"
ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="f5fe", ENV{ID_MM_DEVICE_IGNORE}="1", MODE="0444"

You can see I took out the SYMLINK and I added MODE because of a suggestion by atoponce in the ubld.it forum. I thought it might help to remove this "Couldn't open device" in my lsusb output, as well as for some future work, but it didn't help with lsusb.

user@host:~$ ls -lsa /dev/ttyACM0
0 cr--r--r-- 1 root dialout 166, 0 Jan 20 10:07 /dev/ttyACM0

Here's the relevant part of my LSUSB -v output.

Bus 002 Device 002: ID 04d8:f5fe Microchip Technology, Inc.
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 2 Communications
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x04d8 Microchip Technology, Inc.
idProduct 0xf5fe
bcdDevice 3.02
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 1 AT-commands (v.25ter)
iInterface 0
CDC Header:
bcdCDC 1.10
CDC ACM:
bmCapabilities 0x02
line coding and serial state
CDC Union:
bMasterInterface 0
bSlaveInterface 1
CDC Call Management:
bmCapabilities 0x00
bDataInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Avatar
Response from ubld.it Electronics | Jan. 26, 2016
Hi Bryan,

The symlink is there because you may have multiple ttyACMx devices so we use the symlink to update which port it is upon insertion. It's fine to do it directly to the ACM0 device, but if you plug in other ttyACM0 devices that enumeration may get skewed.

Thanks for the update on the ^M issue, we fixed it before but it snuck back in somehow. I've updated the link on the web site to a non ^M version.

Grant | Dec. 31, 2015

Well done but same shortcomings as the competition

For MIDI Breakout Board EZ

This board is well designed, the instructions are great and it arrived quickly. What I would really like to see in a MIDI Breakout Board is less of the "me too" sameness that so many of these have, and a little more of the "designed better" that this market really needs. I think this is a reasonable request and this designer could easily accomplish it. First it needs to have a buffered output. This is the way the official MIDI spec was written and I won't buy a MIDI Breakout Board again that doesn't have it. By the way, this is the third such board I have investigated. Second, it would not be hard to add optional MIDI activity LEDs. By adding a one 7414 and some high efficiency LEDs both tasks could be accomplished. I hope this designed takes my recommendations to heart. On the other hand, if you just want a minimal board, this will do the trick.

Mike | March 9, 2015

Good TRNG, simple to use and reliable

For TrueRNG V2

Excellent product. Passes all the tests for randomness and reasonably fast data rate. Good enough for my needs anyway. Documentation a little thin though other users have been kind enough to document their experience on the web.

Brett | Jan. 7, 2015

nice rng

For TrueRNG V2

Entropy on mine is good. Code and driver worked fine. Shipping was fast though it wasnt packed well..was out of the bubble wrap floating in box. Good product at affordable price.
Avatar
Response from ubld.it Electronics | Jan. 7, 2015
Brett, I'm sorry your device fell out of the bubble wrap. We have never had this complaint before so I didn't know it was an issue. We will look into this and experiment with better packaging techniques.

Tom | Dec. 20, 2014

Just what I needed

For Pico Load Kit - 2 Amps

I need something to test little switch mode supplies on their pcb before other parts are added, this is ideal for this. I like to think of this as the reverse of a current controlled power supply, you use a current controlled power supply to control how much current is input into a device, you use this to control how much current is output from a device.

This is a great little kit. It is arranged like something your would buy from Heathkit in the 80s. The parts are well packed and professionally organised, the instructions are super clear and it works.

For a few dollars more some standoffs and an acrylic plate based "case" could be added (http://dangerousprototypes.com/docs/Sick_of_Beige_compatible_cases).

Using the supplied model I created an acrylic base plate, download it from http://www.thingiverse.com/thing:754623

Andrew | Dec. 10, 2014

TrueRNG V2 USB

For TrueRNG V2

Device was easy enough to set up once I compiled the correct kernel module to drive the device. The udev rule provided on the website works perfectly. Setting up the Rngd daemon to fetch randomness from the device was also simple. The quality of randomness derived from this device is high and mixed with several other sources it provides my /dev/random pool with extremely high-quality randomness. I use this device in a KVM host to provide randomness to several guest domains and it keeps them all happily stocked with entropy even under load.

Cristian | Nov. 3, 2014

It works just fine

For TrueRNG V2

It works ok... I've tried it on Ubuntu, Centos and Windows 7 and it's fine... I didn't try it on my mac yet.
People from the support are nice.

C | Oct. 28, 2014

device wrkd as advrtsd making strong stream of randosm bit

For TrueRNG V2

Good price for a light-weight, true random number generator. Kudos to the designer(s)!

Thomas | Oct. 21, 2014

A great option forsmall business and personal use.

For TrueRNG V2

I purchased these for use with Linux firewalls providing VPN tunnels between locations. It works extremely well and does just what it say it will. I ran into some issues, but none were the fault of the TrueRNG. I highly recommend it.

Kenneth | Oct. 20, 2014

wonderful device at an excellent price - but no docs

For TrueRNG V2

This device works perfectly once you make your computer see it. That's the problem. One requires a .inf file for Windows to know what to do with it, but although you can find a reference to such a file hidden in the depths of the "manual," the file itself is not included. I obtained one from from the company that makes the device when I complained about it. They were very quick to respond, and most of my troubles were, in fact, "pilot error," but they were kind about it.

I recommend this product without reservation. You do to need to know what you are doing, though, or be willing to find out.

Kenneth Turner

Daniel | Sept. 24, 2014

Exactly as specified

For TrueRNG V2

Advertised speed and randomness checks out perfectly. I had been looking for something like this for two years.

Zach | Sept. 8, 2014

Good product

For TrueRNG V2

Actually the first one I received was defective - the output was extremely non-random. However, the creators were quite prompt and helpful in sending a replacement. New device works as advertised.
Avatar
Response from ubld.it Electronics | Sept. 8, 2014
Zach, our sincere apologies for shipping you a defective device. Thanks for sending it back so fast.

Murphy | Sept. 7, 2014

The best true RNG available for the money

For TrueRNG V2

The TrueRNG2 is fantastic. It generates about a gigabyte of random numbers over about 6 hours that passes every test for randomness that I try. Dieharder, FIPS, ENT all say that the data is indistinguishable from totally random. I use it to keep the Linux /dev/random pool of entropy full so that when I generate gpg keys there is no delay waiting for random numbers. With this you never have to worry if your psuedo RNG can be broken or sequence predicted. Goodbye generating randomness with SHA1, SHA256, Whirlpool, Ripemed160 or other PRNG. TrueRNG2 does not get hot even when left in the usb slot generating numbers over night and has not shown any sign of degradation over time. The quality of the materials is good and solid. For the price there is nothing on the market that comes close to this device. My only criticism is that the schematics and parts list should be revealed so that us paranoid types can verify or replicate the device. This would probably enhance sales rather than detract from them.

Gerry | Aug. 9, 2014

Great product at a great price.

For TrueRNG V2

This product works well and the numbers it produces passes all the test suites we can throw at it.

We were so impressed with it that we added it as a TRNG device to our software product TRaNGen2.

It would be nice if there were signed drivers for it for Windows 8, but it works great on Windows 7 and XP

Regards,

Udo | July 8, 2014

Works as designed...!

For TrueRNG V2

Orderd one TrueRNG device. It slipped through Dutch customes without import fees.
The Linux box was already set up using the simple clear instructions.
So I plugged in the TrueRNG device and started rngd.
Bam! Entropy.

Mark | May 12, 2014

TrueRNG = excellent

For TrueRNG V2

I bought this unit to achieve a higher level of randomness than a standard pc could output. I am writing some programs in Dark Basic to interface with this device. I recently discovered the functions in the rng.h file floating around on this site. So now I am using the .h to compile a dll to be accessed in my Dark Basic programs. Due to the complexity of my options that is all I can say now.
I did test this device successfully in REALTERM. It appears to shoot out a stream of really random numbers, though I am unable to confirm this programatically now.
Thanks.

Frank | May 11, 2014

A breeze to get working, superb quality for that price

For TrueRNG V2

It really doesn't get much easier (speaking stricty as a GNU/Linux users) The USB device presents itself as a serial port. It would be perfectly usable as such, just after pluggin it in. Just read from the device! The udev ruleset just gives it a stable name, so you can always find it as /dev/TrueRNG. Just add that to the config of e.g. rngd, and your randomness pool will never be low or empty again, and the noise passes all tests with flying.. uniform mass of grayness :-) While the competition I looked at (QUANTIS) delivers at least 8x more bits, they are also at least 20x more expensive. Most of us don't have any use for that many bits/s. Good show, ubld.it!

Arjen | May 2, 2014

Works well, good service

For TrueRNG V2

Although there were some initial issues with my (international) shipment, after contacting the seller I received a response the same day, a new shipment was sent and received within a week: great service.

The device works well on Debian Linux 7 with rng-tools. I'm not enough of an expert to judge its randomness qualities but the amount of FIPS 140-2 failures hovers around 0.1% which from what I understand is quite normal for truly random sources.

Note that at first I experienced an issue where the random stream would suddenly cut out after an arbitrary amount of data (causing rngd to die). This appears to be due to some of the random bytes being interpreted by linux as EOF-type signatures, causing the stream to be closed.

Details on the issue & solution can be found here: http://ubld.it/forums/topic/fix-for-rngd-read-error/

In my setup, running the command 'stty -F /dev/ttyACM0 raw' after plugging the device in seems to resolve this problem (but read the forum posts linked above as there may be more optimal ways to do this).

Roedy | May 1, 2014

forgivable complete lack of supporting software

For TrueRNG V2

Http://mindprod.com/jgloss/truerandom.html#UBLD

Jos | April 24, 2014

Works as expected!

For TrueRNG V2

A lot of folks worry about security these days: call it the Snowden effect. I bet the demand for random number generators is up for this reason. Problem is they are not easy to come by and most of them are very expensive. Come the TrueRNG. It works as expected; its cheap and stock is plentiful (for now!)

It took about a month to arrive in the Netherlands; no custom duties charged ...

I use it on a recent Fedora linux system and the provided install script helps; but also contains an error for a recent Fedora system. It is both subtle and dumb. Instead of the -o switch a -r switch should be used. See excerpt of code below.

The entropy on my system is up! See picture attached.

*** Wrong ***
# func new systemd
rngd_systemd() {
cp -p /usr/lib/systemd/system/rngd.service /etc/systemd/system/rngd.service
sed -i~ -e 's/ExecStart=.*/ExecStart=\/sbin\/rngd -f -o \/dev\/TrueRNG/' /etc/systemd/system/rngd.service
systemctl daemon-reload
}
*** Wrong ***

*** This works ***
# func new systemd
rngd_systemd() {
cp -p /usr/lib/systemd/system/rngd.service /etc/systemd/system/rngd.service
sed -i~ -e 's/ExecStart=.*/ExecStart=\/sbin\/rngd -f -r \/dev\/TrueRNG/' /etc/systemd/system/rngd.service
systemctl daemon-reload
}
*** This works *** Review Image

Yann | April 11, 2014

Nice product

For TrueRNG V2

I've received my TrueRNG USB key.
It's nicely built.
It's working as expected: it's recognized by cdc_acm Linux kernel module, autoloaded when I plug the device.
The TrueRNG USB key it's able to produce a data stream at more than 49 kiB/s:

# dd if=/dev/ttyACM0 of=/dev/zero bs=64 count=4096
4096+0 records in
4096+0 records out
262144 bytes (262 kB) copied, 5.22361 s, 50.2 kB/s

I'm using the device with command "rngd -vf -r /dev/ttyACM0", then reading "/dev/random" can produce a data stream at a rate of 11.6 kB/s.
Without the TrueRNG USB key and rngd daemon, rate is about of 0kB/s :)

Lee | April 7, 2014

Quick deliver and quality product

For TrueRNG V2

Arrived sooner than expected, in great shape - minor tool mark along one of the plastic casing's seems. From my testing, this seems like an extremely legitimate product. Meets advertised throughput to the mark. Extremely happy!

Nabil | April 1, 2014

The best (and only) affordable TRNG for everyone!

For TrueRNG V2

If you are looking for a good, reliable and affordable TRNG don't waste your time searching around because when you read this review you already found it. Normal TRNGs start around 900$ and are targeted towards big companies or online casinos. Those are probably great devices as well but they are both overpowered and overpriced for small businesses and private use cases.

International delivery to Germany took around 2 weeks. Customs office had it on hold for some days so it might be a bit faster actually.

The usage on Linux is 100% set and forget and done in 5 steps. You can get the config file and a nice guide from the ubld.it website if you need it. From then on it works fully automatically.

The Linux /dev/random is 4k big and TRNG keeps it filled up around 3,5k all the time. Creating even 16k+ PGP keys (edit the GnuPG source for that) is a breeze with TrueRNG. The dieharder test results are even better than shown in their description so there was no hoking up or anything.

The team is very nice and reacts quickly to emails, so if you run into some kind of problem they will be there for you. But I honestly can't think of any problems you will ever have with this little power tool. It does what it's supposed to do and it's doing it very well!

If you are concerned about privacy, want to do some research work or just hack around TrueRNG is your buddy with his truly random numbers! Especially your VPS and other headless devices will love it, too!

Scott | March 28, 2014

Working well

For TrueRNG V2

I've written code to use this device on Windows, and it's working well. It's an effective backup for when sites like random.org have hiccups.
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