Is there a good USB oscilloscope dongle on the market?
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
Don't know if pico scope is what you're looking for but the micro hooks up to the pi. Let me know I've got one of
Technician 1. A person that fixes stuff you can't. 2. One who does precision guesswork based on unreliable data provided by those of questionable knowledge. JaxCoder.com
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
Check out https://www.adafruit.com/product/2053 I don't know that particular product but their goods are generally of quality.
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
I think Mike mentioned Pico Scope, I have used them, they are quite good, but I miss the clicky switched dials of a real scope! Pico Scope, the Raspberry Pi versions can work but I think having to hook up a screen through the HDMI is a little odd! ;)
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
I use the Digilent Analog Discovery 2 both at work and at home. Full of really handy features: USB Oscilloscope and Logic Analyzer - Digilent Analog Discovery 2[^]
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Bitscope Micro www.bitscope.com
Yep that's it. I'm on the road and couldn't quite remember the name. A friend gave me one and I don't use it so am looking for a home for it.
Technician 1. A person that fixes stuff you can't. 2. One who does precision guesswork based on unreliable data provided by those of questionable knowledge. JaxCoder.com
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I was reading about how a Raspberry Pi (or is it Arduino?) can be configured to work as an oscilloscope that can interface into a regular computer, thereby using the computer's ... well ... computer to process the signal. I figure that if this is something that a hacker could do, certainly someone could make a COTS product. Any ideas?
As others have noted, there are tons of "USB Scopes" out there, from the ultra-cheap (and limited in numerous ways) to the very, very expensive. In fact, virtually all of today's "standalone" scopes are not much more than a specialize sampling interface connected to a custom embedded system. Usually that system runs anything from some embedded (or not) form of Windows, Android, Linux, VxWorks, or even a custom or customized real-time OS. If you go on Ebay or Amazon, and search for "USB Oscilloscope", you'll find a ton of options. If you google the same - again, you'll find plenty. Some of the more interesting ones are cheap Chinese things that don't cost a lot, but have a decent amount of bandwidth for hobbyist use - anywhere from 20-100 MHz on a single channel (usually half that on dual channels, if that is offered). Most of these also have a built-in signal generator, and an 8 or 16 input logic analyzer input. Most of the time the software is Windows-based, but some of them have Linux open-source ports available too. The downside of these cheap scopes is that the front-end - that is, the thing that samples and such - can leave a bit to be desired. If all you want is to check a basic signal level or maybe the frequency of a bit train or something, they are perfect for that. But if you are trying to figure out some kind of noise issue, the scope itself might have millivolts of noise on the output as-is, which is no good (so if you are doing serious work, pay for a serious scope). Other items you'll see out there are all manner of USB Logic Analyzers, which are basically multi-channel oscilloscopes designed to measure and show a set of digital signals, within a certain bandwidth. One well known (and expensive) set of models are made by Saleae - they also tend to be the most cloned set, as well (mainly because their software is so good). So you'll find their top-end models, plus counterfeits (some of them will be marketed as particular embedded dev systems - because really that's all the Saleae scope is, done up in a fancy case). Finally - if you continue to dig - you can find tons of articles, blog posts, Arduino forum musings, Instructables, and other instances of people showing how to build such scopes; everything from display on an LCD to dumping the data over USB and such can be found covered, using virtually every kind of embedded processor you've ever seen. And if you dig really far down, you'll find old text files on how to build such scopes using a PC, it's parallel port, and custom DOS softwa
