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jsj_miniscope
25msps 8bit analog scope made from 5$ fx2 and 5$ ad9283 capable of 200msps with 30$ fx3 and 3$ ad9288 and my free github ahk pc scope
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Ralf Messerer
Grant Giesbrecht
Jonathan,
Please explain a bit more about the hardware side of this. How are you getting the analog signal ? You have lot of interesting photos, but not enough information for most people to try this themselves. Do you have any still working?
After some red herrings (Cypress FX3 superspeed USB board), I found links to your devices.
https://u32.net/oldwiki/Oscilloscope.html has several alternatives listed and mentions logic probes, but I do not know how that gets turned into an oscilloscope.
Here is the Cypress FX3 link just in case https://www.cypress.com/products/universal-serial-bus-usb#tab3 The basis of any ADC is getting the data onto the users computer. So high speed USB makes sense.
I guess a logic probe is just a single bit comparator at high rates. Isn't that the basis of a single bit ADC? Pardon me it is late and hard to remember so many technologies and ideas.
I cannot find your specific devices, but I got interesting results from this search
https://www.google.com/search?q="logic+probe"+"8+bit"+"analog"+"fx2"
Richard Collins, The Internet Foundation