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

I needed an easy way to monitor the GPIO ports one of my solutions in a way that I could capture it, analyze it, and share it with my team. A bench top oscilloscope with the same set of features was an expense that I just couldn't afford at the moment, so I looked at the hand-held solutions. While there were many that seemed to have many of the features, I liked the quality of the build, the small size and weight for portability, the fact that it's both an open-source hardware and an open source software solution the best! It even works with my Apple MBPro! I picked up a package of probe wires and I was well on my way. Setup and calibration was incredibly simple, and removed all the noise I was worried about. I first tested the ability to generate waveforms to validate and verify functionality. Satisfied, I setup the probes on my Pi GPIO ports that I needed to monitor. The accuracy was perfect! I have already used many of the features that I could only get in a bench oscilloscope. In fact, there are features I haven't even tried yet, like the logic analyzer. I can't wait to print a case to help protect it and take it with me when I travel. Get one. You won't be disappointed!

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.

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.

Extremely disappointed. I have needs that are easily met by traditional oscilloscopes. For example, I use a scope and a sweep audio generator to make acoustic profiles in theaters. I trigger several other timed events and watch their signal behavior. I need a simple way to display and calibrate for specific time divisions and that's just not possible with this system. A true oscilloscope is a precision time-referenced measurement device. The designer apparently has no experience with lab scopes and is mis-advertising it as a real oscilloscope. It was a total waste of money for me. I wish someone would produce an alternate app that actually works.

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.

Cool little bit of Swiss Army knife type diagnostic tech. Everything works well with the smartphone app. Relatively easy to set up if you follow the online instructions, but definitely not intended for tradies. Compact, easy to carry...would be cool to print a little case and run jumpers for it. Only downside is the coarse resolution on the oscilloscope, but they tell you that up front. It is a neat little gizmo that is easier to carry around, will work in a pinch if you don't have a real meter handy, and will impress other geeks.