4 ms·
For the scope part: - This board is 750kSPS, the most well known cheap alternative (not necessarily open source), is something from JYeTech, e.g., DSO-138 [1]
by fizixer 7y ago
For the scope part:
- This board is 750kSPS, the most well known cheap alternative (not necessarily open source), is something from JYeTech, e.g., DSO-138 [1] (it's 1MSPS)
- Both 750kSPS and 1MSPS are hopelessly inadequate for serious work
- In the USB scope arena, the two top contenders are OWON VDS 1022i, or Hantek 6022 variant (I prefer 1022i; it's 100MSPS [2], I think Hantek is 48MSPS).
- Finally, the best bang for the buck, and open source, is the Haasoscope v9 selling on ebay (directly from the creator, Andy Haas, who's a physicist and wanted to create a cheap but good open source scope). The bundle is $139 [3], but there is an add-on that further increase the frame-rate or something that's $40 or something, though I consider that to be essential not an add-on. (it's 250MSPS)
- if you wanna get a new and stand-alone scope, Rigol ds1054z $375 [4] is a hot favorite (also watch out for Keysight, they're trying to get into low-cost scope market). 1GSPS.
Disclaimier: No affiliation.
[1] https://jyetech.com/dso138mini-diy-kit/ https://jyetech.com/dso138mini-diy-kit/
[2] https://www.amazon.com/dp/B00HC4KY2G https://www.amazon.com/dp/B00HC4KY2G
[3] https://www.ebay.com/itm/283330921663 https://www.ebay.com/itm/283330921663
[4] https://www.amazon.com/dp/B012938E76 https://www.amazon.com/dp/B012938E76
- mcshicks 7y agoI have a rigol MSO1104 (1 ghz sampling, 100 mhz analog bandwidth, logic analyzer) I bought after I retired for doing some work out of my house. I remember it being about $1000. It's very nice, I would highly recommend it for a home lab. I also bought an analog discovery 2 to bring to the library where I teach Arduino and Raspberry Pi classes. It's 2 channel, I can't remember the bandwidth, I think 60 mhz analog bandwidth and maybe 500 megasamples/second? Anyway I think I bought the pro bundle, a little less than $300. I think it's a very nice setup for someone to get started, it has lots of really cool features like a network analyzer, minijack input for audio, serial decoders etc. The PC software works good, available on linux. It's small runs off USB power. I know the probes don't have the isolation that a normal commercial scope does, but for a lot of hobby/learning type things it doesn't matter. I like the idea of making your own hardware and learning things from it, but for a beginner in electronics or the occasional user I think the analog discovery is a pretty good value. I was never a big fan of National Instruments when I was working, but I think this is a pretty good product. https://store.digilentinc.com/analog-discovery-2-pro-bundle/ https://store.digilentinc.com/analog-discovery-2-pro-bundle/ (edit) - actually it's 30mhz with the bnc probes.
- madengr 7y agoA two channel logic analyzer seems very inadequate. Need four minimum.
- dreamcompiler 7y ago> Both 750kSPS and 1MSPS are hopelessly inadequate for serious work It's perfectly fine if the serious work you're doing is audio.
- stevenhuang 7y agoAppreciate the detail. I'll add that I can recommend the DSO-138 for those new to electronics and want to start with something fun. It comes in a kit (soldering + assembly required), and is great way to get introduced to electronics assembly. At the end you'll hopefully get a working oscilloscope to play with :) It's an awesome project for kids too!
- amelius 7y agoSpeaking of Hantek, has anyone tried their handheld oscilloscope/function generator? https://www.banggood.com/Hantek-3in1-Digital-OscilloscopeWaveform-GeneratorMultimeter-Portable-USB-2-Channels-40mhz-70mhz-L-p-1369465.html https://www.banggood.com/Hantek-3in1-Digital-OscilloscopeWav...