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USB Logic Analyzer Device With USB Cable 24MHz 8CH 24MHz 8 Channel UART IIC SPI Debug
Sampling rate up to: 24 MHz , can be 24MHz. 16MHz, 12MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500KHz, 250KHz, 200KHz, 100KHz, 50KHz, 25KHz;
The logic for each channel sampling rate of 24M/s. General applications around 10M, enough to cope with a variety ofoccasions;
8-channel;
Voltage range:
Input voltage range: -0.5V to 5.25V
Input Low Voltage: -0.5V to 0.8V
Input High Voltage: 2.0V to 5.25V
Works with 5V, 3.3V, 2.5V, 2.0V systems. May work with 1.8V but not recommended.
Input Impedance: 1Mohm || 10pF (typical, approximate)
Crystal: +/-20ppm, 24MHz
Error/Accuracy: pulse-width measurement: +/- 42ns (at 24MHz).
Packing Included:
2 * Logic Analyser
2 * USB Cable
2 * Dupont Cable
Daily review
2025-02-08 10:04:07
These logic probes are clones of a better known brand. I haven't owned a logic probe before, and they used to be expensive for hobbyist use, but no more. You get two of them in this pack. Each one includes a 3-ft mini-USB cord, the logic probe, and a 10-conductor rainbow cable terminated in individual female Dupont connectors on both ends. Each logic probe has 8 data pins, and a "CLK" clock pin, and a "CND" which I think is supposed to say "GND" for the common ground. The probe didn't come with any documentation, and I never was quite sure how the clock pin was intended to be used. I hitched a cheap scope up to it. Maybe it's for an external clock or trigger. I did measure a 12 MHz waveform on the pin before the PulseView software initialized the unit, but it goes to a lower voltage 8 MHz when you start it. My assumption is that this is programmable, but may require different drivers or software.Sigrok Pulseview is what I used to drive this, and it's an excellent software package. It can monitor all channels, add some decoding and counters, making this a great way to start exploring. Plug your probe in before launching the software, and it should detect it as a "Saleae Logic" automatically. I wrote a little Arduino test script to blast out some characters and a counter to the serial pins, and monitored those pins with the probe. In addition to showing the waveforms, PulseView was able to decode the characters that I was sending by adding some "math" channels to the capture. The highest my signal generator goes is 1 MHz, and this measured at 48MHz sampling very cleanly.Please note that this is not an oscilloscope. It doesn't show the shape of analog waveforms, just digital representations of when they cross the voltage thresholds. This is a very useful tool for measuring digital signals on hobby projects or old computers with lower clock speeds. The sampling rate seems to be capped at 48MHz, so that's where the 24 MHz rating is derived from.This doesn't come with any clips, so you'll probably want to buy a set of those as well as some male Dupont cables, or whatever you need to interface with this. A 10x2 keyed IDC header would be handy if you're some custom connectors for this.In short, you get a very
JennaSys
2024-12-09 17:03:47
I got these USB logic analyzers to help me troubleshoot I2C and SPI communication on Raspberry Pi projects. I use them with an open source desktop application called PulseView which recognizes the device as Saleae Logic. Unfortunately, that application is only able to utilize one device at a time, so having two of these on hand doesn't really help me much.The included wire jumpers do work for connecting this analyzer to a circuit. However, I find it much easier to use a cable setup that has a FC-10P IDC socket connector on one end to connect to the analyzer, and probe connectors on the other end for connecting to your circuit. This analyzer module does have its limits, but for the price it can really help you troubleshoot logic and timing issues in your circuits.
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