HiLetgoUSB Logic Analyzer Device With EMI Ferrite Ring USB Cable 24MHz 8CH 24MHz 8 Channel UART IIC SPI Debug

SummaryPros - inexpensive, works well with free open source softwareCons - no on board capture buffer, no probes includedThis is a good little logic analyzer for the home hobbyist or even a small development team. The hardware uses a CY7C68013A microcontroller (an 8051 MCU core with an integrated USB 2.0 interface). It comes with a USB A to mini USB B cable and some short jumpers wires. It is powered by USB so there is no other power supply to deal with.There is no on board capture buffer so your computer needs to be fast enough to receive the data as it comes over USB. With most systems that shouldn’t be an issue providing you are not doing any other intensive tasks, particularly those that use USB, at the same time. Trying to run all 8 channels at 24Mhz though could be an issue on some systems.Looking at the board, there isn’t any input buffering other than series resistors. Care must be taken not to expose the channel inputs to voltages that could damage the on board microcontroller.There is no software included, but one can download the open source sigrok/PulseView which fully supports this device. I tested it with PulseView 0.4.1 on a Windows 10 system and it was recognized as “Saleae Logic” analyzer (an older name brand analyzer). The only part that could be slightly tricky to getting PulseView working is installing the WinUSB driver using Zadig. If you are unfamiliar with Zadig, you can read about it on the sigrok wiki area for windows.Since this board emulates a “Saleae Logic”, there are also commercial software offerings that should work with it.I did an initial test using two channels simultaneously reading a 115200 bps data stream (sample rate set to 500kHz) and it worked flawlessly. PulseView easily decoded the ASCII data once configured. I again captured the same stream setting at 24Mhz (which is way over sampled for the data stream) just to see what it would do, and it worked fine showing the much more frequent sample rate.I’m not aware of a way to setup anything but a simple trigger to start/stop capture using PulseView. That is a software limitation if you are trying to catch a more complex event that occurs infrequently.The jumper wires that came with it are of limited use unless you always have available header pins to connect to in your circuit (doubtful). I suggest ordering a set of “logic analyzer test clips” to complete your setup.

Works very well and unbelievable value. I couldn't imagine that for $12.00 I could get a useful logic analyzer. But I gave it a try based on the other positive reviews and it's amazing.There's absolutely no documentation except for listing their support email address, not even a web URL. But don't worry, just download the PulseView software and follow those instructions. Up and running perfectly in under 10 minutes on my OSX desktop. I just plugged the supplied cable into my USB hub and attached a few of the colored signal wires into my project breadboard.It captured the SPI bus from my Arduino project and I was able to spot the problem immediately. PulseView comes with a huge number of protocol decoders built in including one for SPI that I used.The UI is unbelievably responsive for something that is handling millions of data samples. Instantaneous and fluid zooming and scrolling.As expected it has a flexible Trigger function that captured my the signals at exactly the point in time I needed to investigate. I wish I had bought this weeks ago, it would have saved me a lot of debugging time already.If you're interfacing to Arduino, RaspberryPi or doing any type of digital logic breadboarding I'd highly recommend getting one of these ASAP.

I am extremely pleased.I researched and knew what I wanted, what to expect from this little, yet capable, unit. I also understood what not to expects from a $12 piece of hardware. I am not disappointed at all.Configuring it to function with Sigrok's PulseView and Saleae's LOGIC proved just a small ignorance-induced challenge on a Windows 10 x64 newly build workstation, but I was able to get it installed and functioning as intended/desired. It ended up being a pretty shallow learning curve I needed to progress through. Youtube videos and Amazon reviews & buyer question responses helped. User tip: Use Saleae's LOGIC to get the newly connected device configured with drivers, once that is done, try Sigrok's PulseView, prior to trying to force a square peg into a round hole with their Zadiag tool...The unit is very nicely priced, small, and is shipped with the items pictured in the Amazon listing (including the ferrite beaded USB cable (LA has a USB Mini on it)) only. There is no software provided, nor instructions, but, as indicated above, it works with packages that are freely available on the interwebs. The provided test interconnect is a Female to Female configured harness. Tip 2: For use with breadboards and other female-socketed items, I recommend either some male-to-male jumpers or fabricating additional harnesses for use as needed (which I have done - in the attached photo, I show three additional harnesses I made using on-hand supplies I had available - it helps me a lot to have these within easy reach...).if you are in the market for a wallet-friendly Sigrok/PulseView-compatible Logic Analyzer, this may be just what the doctor ordered. Just understand its limitations. The price of the unit doesn't facilitate a super broad bandwidth, noise filtering, or under-/over-voltage protection on the inputs, so one needs to be mindful and work to not exceed published limits (-0.5V to 5.25V). Other than that, and the obvious narrower bandwidth, no negative attributes exist.For the buck, you can't easily beat the bang that this capable little unit brings to the fight. Purchase is recommended.Regarding this OEM/Distributor, HiLetgo hasn't failed me on several technology purchases thus far. Pretty darn happy with them at this time. Take care.-t