HiLetgo USB Logic Analyzer Device With EMI Ferrite Ring USB Cable 24MHz 8CH 24MHz 8 Channel UART IIC SPI Debug for Arduino ARM FPGA M100 SCM
F**B
Very happy so far
I attached this logic analyzer to an old modem's UART and was able to capture the modem's boot process using PulseView. The device was recognized as 'Saleae'.This is a great device for hobbyists: basic, simple and very affordable. I am happy with this purachase
C**R
Good basic hobby logic analyzer
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.
C**Y
Incredible value and very useful digital circuit analyzer
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.
J**N
Unbeatable price for the performance, but not beginner friendly
Wow, for the price this is amazing! I was using an oscilloscope before this to manually try and capture a signal, and then decode it by hand because I thought there weren't affordable logic analyzers, I was wrong.However, I will agree with other reviews that it is not beginner friendly. I didn't have too much trouble getting it started, but I'm sure if you're new to this it would be confusing, I have a recommendation for anyone reading this:1. Download Sigroks PulseView software (It's free, and comes on Windows, Mac, and Linux) - I would recommend the stable release version over the nightly build since I had issues with the nightly build (I'm using Debian and have had success with the AppImage version instead of trying to build it)2. Plug the analyzer in BEFORE opening PulseView.3. Open PulseView, and select the "Connect to Device" button.4. Choose the fs2lafw driver and USB interface, you should see something like "Saleae Logic 8 Channel" device appear in the device selection menu.5. Google more about how to use PulseView, since once you can connect it's really about knowing how to set triggers, adjust sample rate, etc...One thing to note is, if you unplug it after using it with PulseView open, you have to CLOSE AND RESTART PULSEVIEW to use it again, I'm not sure why this is but the solution is that simple.Once you know how to use it, it is a great tool for the price, so good I ended up ordering extra so I can have one in my portable kit and one at home, and I will soon be ordering a couple more for some workshops I'll be teaching since they're so cheap. Would definitely recommend it to anyone looking for a great budget analyzer.
R**6
Very impressed, worked great!
I spent hours trying to build a poor-man's Logic Analyzer out of an Arduino. The last time I needed one, they were big, expensive bench instruments that cost way more money than my little hobby project was worth. The thought never ocurred to me to simply buy one, but then I discovered this little gadget and am completely blown away. It worked fantastic, and was super easy to use. Big thanks to the commenters/question answering users who pointed me to the free Salae software.I used it on a Mac and it was very easy to set up and use. I did have to twist the ribbon cable around a bit to make the cable colors correspond to the on-screen colors for the signals. But wow, a fully-functioning 24 MHz logic analyzer for $13. Just amazed. One thing to watch out for: this conforms to TTL logic levels, which means 2.0V or higher is considered logical HIGH. This can be unintuitive for those working in 5V and expecting anything under 2.5V to be LOW. Usually not a problem, but it did get me because the LED and resistor on Arduino's pin 13 were pulling the input low. The LA saw it as HIGH, but the Arduino saw it as LOW. (Burried in Arduino's documentation is the suggestion to "not use Pin 13 as an input.")The gadget itself is light on documentation (for instance, a blue LED lights up when it receives a signal... at least I think that's why it lights. I'm not actually sure). But setup is so intuitive that it really doesn't need anything.
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