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

Cheap scope for my computer. Needed a presentation display of an audio waveform. Did its job.

The Labrador is really cleverly engineered. I love being able to analyze waveform outputs of circuits I’m tinkering with. As a hobbyist, I wasn’t prepared to invest many hundreds of dollars (or more) in a scope. But, utilizing an existing computer for processing and display, and mass producing the chip brings the price here to $30, which is amazing. It certainly meets all my needs as a casual user. I put the chip in a simple plastic box, and connected leads for 2 scope inputs, 1 waveform generator, plus a common ground, plus the USB (which communicates with the computer and also provides power). I had a slight hangup, which turned out to be a bad micro usb cable. Some do power but not data, so watch out for that. A better quick start guide would be appreciated. It’s actually so simple to set up that it can be mildly confusing, which sounds strange, but is true — I wanted to connect more wires, but most of the pins were not needed in a simple application, and power comes over the USB, as mentioned before. Software installation was easy. I would like to see a way to save your settings between sessions in the software. Great job!

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.

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.

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.

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!

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.

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!