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Labrador: Easy-to-Use, Open-Source, All-in-One USB Oscilloscope, Signal Generator, Power Supply, Logic Analyzer, Multimeter for Windows, Mac, Linux, Android, Raspberry Pi

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The EspoTek Labrador is a USB Device that turns any PC (Windows/Mac/Linux), Raspberry Pi or Android device into a full electronics lab with oscilloscope and more. The software interface was designed from the ground-up to be intuitive for students and makers, while retaining some of the more complex features than experienced engineers can make use of. Best of all, the hardware and software is 100% open source - all code and design files are publicly available on GitHub.


MikeB
Reviewed in the United States on February 7, 2024
I had hoped that I could use an old Android phone as a display for this unit. The app downloaded just fine, but when I powered the system on, The display stated the labrador wanted to perform calibration, and even after following the screen instructions multiple times, I was never able to successfully get it fully up. There was no real support for how to troubleshoot this issue.. unsure if the board had an issue - no way to debug if I had a firmware, software, or hardware issue. Trying to install on a Win 10 PC did not want to work at all - and discovered that the labrador downloaded the app from the first device, making it captive to only the first device! My advice: be careful what platform you pick.. support for this was thin on the ground (this review submitted > 2 years after purchase and setup occurred).
MK
Reviewed in the United States on October 19, 2021
The headlines here are the price and size. It’s cheaper and smaller than essentially anything else on the market. The performance specs are modest, but sufficient for many basic hobbyist/enthusiast applications. There’s enough bandwidth and input range to handle audio/sound/music and slow serial data links (UART, i2c, i2s etc).Easily integrates with breadboards which makes it great for prototyping.The software (and hardware!) is open source and cross platform. Another review complained about there being no Linux support, but this is incorrect: there is a Linux AppImage in the same place as the Windows and MacOS binaries. Additionally there is a script for installing on Raspberry Pi and instructions on building from source.Documentation is limited, but sufficient.The host software itself can take a little getting used to, especially if used to more traditional test equipment, but gets the job done and is par for the course for USB test equipment.This isn’t a one size fits all solution, but is great for what it is and at a price that can’t be beat. Those looking for a more polished product with a similar niche but fewer quirks would probably be interested in the Analog Discovery. It’s more powerful with a better ‘out of the box’ experience, but at 10x the price. The Labrador punches above its weight. It’s not a professional tool, but great for the DIY crowd.
Anon
Reviewed in the United States on April 10, 2021
I wasn't really expecting that much for the price, but after using it I am almost floored at how much bang for your buck you get here.I've been using it to measure audio waves from synthesizers and it seems to work quite well for those purposes.It also has a signal generator, power supply, and multimeter-type-thing. I haven't used these tools very much, but when I did use them they seemed to work just fine within their defined limits.Overall I'd say definitely get this if you are a beginner who wants a capable set of lab tools on a budget.The fact that it's open source makes it even better.
Gregory A.
Reviewed in the United States on May 14, 2020
This is a handy little lab instrument for those who have no other instruments, or perhaps to use in a demonstration. It works as advertised, no surprises, and is worth the money.I had some issues with getting slightly but noticeably different measurements off of the two oscilloscope channels, and voltage measurements didn't agree with my DMM by a small but noticeable degree.I also noticed that the pins on the board didn't align correctly with either of the two brands of protoboard that I tried it on; the board would fit but the two power pins had to be bent to fit well enough. This issue didn't prevent me from using the board, however.I had hoped that this device would be well supported on Android, but apparently that's an abandoned platform for the Labrador. The app routinely crashed and had noticeable lag when entering commands. Hopefully, the Windows, Mac, and Linux software is better, but I haven't tried those yet.
Sam O
Reviewed in the United States on February 17, 2020
I've had it for 2 hours and it's already been put to work. Very much a "plug-and-play" device as well. While it doesn't quite have the feature set or resolution of a $400 PicoScope, it comes amazingly close for an order of magnitude less money. The 2 oscilloscope inputs and separate signal generator outputs, plus the ability to generate a custom output waveform really put it over the top for me. Already ordered a few BNC connectors and a small project box so I can take this with me whenever I travel for work... seems like we always need a 'scope when there isn't one around. It's going to be very helpful for troubleshooting assorted instrumentation.The software is also very straightforward to setup and use once you get the hang of the shortcuts. Overall great little product.
Thomas
Reviewed in the United States on August 12, 2019
This is a pretty awesome tool! It doesn't promise to replace a professional lab, but it is certainly a lot more portable and can basically do most things that most people would need in most situations at a significantly reduced cost. As a computer engineering student, I have personally used the Labrador so I could work on assignments away from campus if need be. It has served me well. I have successfully used it on both Linux and Windows. I haven't gotten the phone app to work, but I think it might just be an issue with the OTG on my phone. There's also 3d printed cases out there that work well to keep it protected. Highly recommended!
Dave
Reviewed in the United States on October 7, 2018
The smallest O-scope I've ever heard of. Yes, it does other functions as well but to get a nicely featured scope in a size not much bigger than a postage stamp, wow. Plus it is powered only by the micro USB port. I have only just begun using it but so far I am quite impressed with it's performance. I put it in a little 99 cent storage bin and made two holes for the micro USB and BNC connector I added for connection to a O-scope probe.(pictures attached) It has an easily removable lid to change the connections for other functions. So far it appears to be an excellent investment.