| OWON HDS200 | https://www.eevblog.com/forum/testgear/owon-hds-200-handheld-oscilloscope-w-builtin-dmmawg (https://www.eevblog.com/forum/testgear/owon-hds-200-handheld-oscilloscope-w-builtin-dmmawg) |
| Hantek 2C42/2C72/2D42/2D72 | https://www.eevblog.com/forum/testgear/hantek-2c422c722d422d72 (https://www.eevblog.com/forum/testgear/hantek-2c422c722d422d72) |
| FNIRSI DPOX180H | https://www.eevblog.com/forum/testgear/new-toy()-scope-fnirsi-dpox180h-claimed-180mhz500msps-(may-2023) (https://www.eevblog.com/forum/testgear/new-toy()-scope-fnirsi-dpox180h-claimed-180mhz500msps-(may-2023)) |
| FNIRSI 1013D | https://www.eevblog.com/forum/testgear/fnirsi-1013d-100mhz-tablet-oscilloscope (https://www.eevblog.com/forum/testgear/fnirsi-1013d-100mhz-tablet-oscilloscope) |
| FNIRSI 2C23T | https://www.eevblog.com/forum/testgear/new-handheld-scopemultimeter-fnirsi-2c23t-2ch-10mhz50msps-(november-2023) (https://www.eevblog.com/forum/testgear/new-handheld-scopemultimeter-fnirsi-2c23t-2ch-10mhz50msps-(november-2023)) |
| FNIRSI 5012H | https://www.eevblog.com/forum/projects/reverse-engineering-fnirsi-5012h (https://www.eevblog.com/forum/projects/reverse-engineering-fnirsi-5012h) |
| FNIRSI 1C15 | https://www.eevblog.com/forum/testgear/fnirsi-1c15-handheld-scope (https://www.eevblog.com/forum/testgear/fnirsi-1c15-handheld-scope) |
| ZEEWEII DSO3D12 | https://www.eevblog.com/forum/testgear/another-dsodmm-zeeweii-dso3d12-claimed-120mhz250msps (https://www.eevblog.com/forum/testgear/another-dsodmm-zeeweii-dso3d12-claimed-120mhz250msps) |
| ZEEWEII DSO2512G | https://www.eevblog.com/forum/testgear/new-2ch-pocket-dsosg-sigpeak-dso2512g (https://www.eevblog.com/forum/testgear/new-2ch-pocket-dsosg-sigpeak-dso2512g) |
| ZEEWEII DSO1511G | https://www.eevblog.com/forum/testgear/dso1511e-review (https://www.eevblog.com/forum/testgear/dso1511e-review) |
| ZEEWEII DSO154 PRO | https://www.eevblog.com/forum/testgear/new-toy()-scope-dso154pro-1ch-claimed-40mss (https://www.eevblog.com/forum/testgear/new-toy()-scope-dso154pro-1ch-claimed-40mss) |
| MUSTOOL MDS120M | https://www.eevblog.com/forum/testgear/cheap-portable-scopes-mustool-mds120m-vs-yeapook-ads5012h (https://www.eevblog.com/forum/testgear/cheap-portable-scopes-mustool-mds120m-vs-yeapook-ads5012h) |
| ZOTEK ZT-702S/ZT-703S | https://www.eevblog.com/forum/testgear/new-zoyi-multimeteroscilloscopes-zt-70xs-up-to-50mhz250msps-(nov-2022) (https://www.eevblog.com/forum/testgear/new-zoyi-multimeteroscilloscopes-zt-70xs-up-to-50mhz250msps-(nov-2022)) |
Define affordable please.
No Siglent or Micsig models in your list.
Define affordable please.
No Siglent or Micsig models in your list.
the OWON HDS2102S i own is not cheap junk that lies about spec, what are you smoking? we can guess affordable is somewhere $200 or cheaper. siglent portable i just browsed is $400+ tautech is thanking you for brand butt lifting... cheers ;)Define affordable please.They, Siglent, Micsig, Rigol and other good and safety caring and responsible manufactures products don't belong in the list of toys and cheap junk that also have lies and scams about technical information. ;)
No Siglent or Micsig models in your list.
So. imho, these are better to keep away from this kind of lists.
the OWON HDS2102S i own is not cheap junk that lies about spec,
SCO_2_10M I prefer not to include as there is no much information and is unbranded.But it belongs on this list as the cheapest 2-channel pocket-oscilloscope.
either way HDS242 is based on same hw/design as HDS2102S, they are not cheap lying junk...the OWON HDS2102S i own is not cheap junk that lies about spec,Yes, but it doesn't really fit in this list either.
It slipped in there because the HDS242 is there for <$150.
Imo you should limit this list to around $150.
Tautech is right: "Please define affordable."without government intervention about the definition, it will stay subjective... student may limit affordable as $50, businessmen may afford to buy $400+ or even much more to $10K range.. so lets wait what OP want to define, we could get a hint from the list he provided already. ymmv.
either way HDS242 is based on same hw/design as HDS2102S, they are not cheap lying junk...No, the Owons are not cheap, lying junk, but "honest" 250/125 MSa/s do not work miracles either, above all they are not really "cheap".
without government intervention about the definition, it will stay subjective... student may limit affordable as $50, businessmen may afford to buy $400+ or even much more to $10K range.. so lets wait what OP want to define, we could get a hint from the list he provided already. ymmv.
As you speculate my initial intention was to cut a little below USD $200, OWON HDS2102 is on the limit and the new OWON HDS2202 is way above and only included to reflect that there is a successor on this model line.
the OWON HDS2102S i own is not cheap junk that lies about spec, what are you smoking? we can guess affordable is somewhere $200 or cheaper. siglent portable i just browsed is $400+ tautech is thanking you for brand butt lifting... cheers ;)Define affordable please.They, Siglent, Micsig, Rigol and other good and safety caring and responsible manufactures products don't belong in the list of toys and cheap junk that also have lies and scams about technical information. ;)
No Siglent or Micsig models in your list.
So. imho, these are better to keep away from this kind of lists.
you get what you pay for... if you ask me, i prefer one honest guy than 2 dishonest guys, even if they are cheaper. if you look around carefully, you are not comparing apple to apple, you may regret it one day... ymmv..either way HDS242 is based on same hw/design as HDS2102S, they are not cheap lying junk...No, the Owons are not cheap, lying junk, but "honest" 250/125 MSa/s do not work miracles either, above all they are not really "cheap".
HDS272S costs $175, which gets you two DSO2512Gs, lying or not.
Interesting list. Following...OP should also state "actual" spec such as sampling rate from real people reviewing them in order to make the list usefull. ymmv.
OP should also state "actual" spec such as sampling rate from real people reviewing them in order to make the list usefull. ymmv.I agree, is something I wanted to do. For real bandwidth some oscilloscope descriptions indicate the rise time, but probably this value is as trustworthy as the bandwidth. Maybe I can incorporate at which frequency signal is attenuated 3dB that is something many reviewers test in their videos. You think this is enough?
With all due respect, I think that everything on that list are toys, not oscilloscopes, perhaps the only one that is saved is the owon or the hantek and even so they are very basic models from brands that are on the limit of professional.
With all due respect, I think that everything on that list are toys, not oscilloscopes,How do you define that? How can you recognize a "toyscope"?
Sometimes this is all someone can afford or justify, and they have their place.
Indeed it has its place. I have other oscilloscopes (some portable even) but the form factor and above average mechanical robustness of the ZT-702S are making me use this guy instead of my DMMs when going to the field. The extra "waveform visualizator" is very convenient to have and debug simple DC power rails deviations, inverter outputs, etc.With all due respect, I think that everything on that list are toys, not oscilloscopes, perhaps the only one that is saved is the owon or the hantek and even so they are very basic models from brands that are on the limit of professional.
Most all of them are real oscilloscopes. Let's not be an elitist or a snob.
Sometimes this is all someone can afford or justify, and they have their place. If they can display the waveform and give you the information you're looking for, then they've served their purpose. I have more than one "toy" oscilloscope in my collection, and they've all come in handy. There's no reason you can't have a $50 scope alongside your $500 or $5000 scope.
sometime we refer "toy" as something cheap. but if it serves our purpose, then its a usefull toy. dishonest spec is something else. what is useless to you doesnt mean useless to others, so keep your personal preferences to yourself.With all due respect, I think that everything on that list are toys, not oscilloscopes,How do you define that? How can you recognize a "toyscope"?
for example you have this
https://www.batronix.com/shop/oscilloscopes/Rigol-DS1102Z-E.html (https://www.batronix.com/shop/oscilloscopes/Rigol-DS1102Z-E.html)
for 291€
or this
https://www.batronix.com/shop/oscilloscopes/Siglent-SDS1202X-E.html (https://www.batronix.com/shop/oscilloscopes/Siglent-SDS1202X-E.html)
for 344€
The table in post #1 really needs a column for FFTSome Fnirsis (DPOX180H, 1013D) and some Zeeweiis (DSO3D12, DSO2512G, DSO1511G) can display an FFT graph, but nothing more.
With all due respect, I think that everything on that list are toys, not oscilloscopes, perhaps the only one that is saved is the owon or the hantek and even so they are very basic models from brands that are on the limit of professional.OTOH all of the scopes in the list are very more capable compared to the -brand new- 20MHz analog scope I started out with as a teenager. And I got that scope as a very expensive birthday gift. If you are on a budget, the scopes in the list are a much better buy compared to getting an old analog scope from Ebay.
I agree, adding a column saying it has FFT functionality based on scope specifications can be misleading if the feature is useless, without having that specific scope to try it or confirmation from owners that it has the most basic features I don't adventure to add it.The table in post #1 really needs a column for FFTSome Fnirsis (DPOX180H, 1013D) and some Zeeweiis (DSO3D12, DSO2512G, DSO1511G) can display an FFT graph, but nothing more.
No dedicated window, no scale, no specific cursor, no specific settings. All of them, as far as I know.
This may not be completely useless, but even the cheapest benchtop oscilloscope can do much more.
Thank you for the compilation!Hello, this was requested some time ago and when I looked for it, it was't available anywhere yet to purchase.
Just a suggestion, you might include the Zoyi ZT-703s.
Does anyone know a "cheap" scope with Time based triggers or Trigger delay. To check timing or stretched chain/belt on a car looking at cam/crack signals requires to trigger on TDC or special notch and see the coloration between the two signal as they drift. With normal edge or level trigger its impossible to get a stable picture.Hantek TO1112
Does anyone know a "cheap" scope with Time based triggers or Trigger delay. To check timing or stretched chain/belt on a car looking at cam/crack signals requires to trigger on TDC or special notch and see the coloration between the two signal as they drift. With normal edge or level trigger its impossible to get a stable picture.Show video pls
Time to add the Zoyi/Zotek ZT-703S to the list?The 703 scope has lots of issues on the current v1.2.7 firmware. Some units shipped with v1.2.8, but I did not hear the 1.2.7 issues were fixed in 1.2.8
It has been reviewed by e.g. Dave, Defpom and Tony Albus.
f you can provide more accurate values for them I will happily update the list.I did and you did not update the list.
Am I right to guess that these ones are still better than used old analogue scope at the same price range ?There are different views on this.
Which one would you recommend?
I just started my studies in mechatronics and wanted to buy nice private scope. Was looking at the new Siglent Sds804x hd and the Rigol alternative but since I read that they have still a lot of bugs to iron out, I'm thinking to start with less capable and cheaper portable scope first.While the 800X HD series is newish, released end of Feb this year, it is entirely based on existing products that go back some 6 years, the SDS5000X series released in 2018:
Ideally around 100 USD.
Am I right to guess that these ones are still better than used old analogue scope at the same price range ?
Which one would you recommend?
Am I right to guess that these ones are still better than used old analogue scope at the same price range ?There are different views on this.
But I would say that a portable scope will still be useful even if you later have a benchtop scope.Which one would you recommend?
Under $100 with 2 channels I would recommend the DSO2512G.
Above $100 you have to consider buying a benchtop model right away if you don't really need the portability (imo).
Within 150 USD category is Owon HDS242S the best I can get currently ?This is a scopemeter (scope + DMM). It's certainly not bad, but perhaps a bit dated.
I can buy it from Europe while 2512G I can find only from Chinese sellers.So what?
Within 150 USD category is Owon HDS242S the best I can get currently ?This is a scopemeter (scope + DMM). It's certainly not bad, but perhaps a bit dated.
If you don't need a portable scope or a scopemeter, I would save the money for a benchtop scope.I can buy it from Europe while 2512G I can find only from Chinese sellers.So what?
https://www.aliexpress.com/item/1005006885654959.html (https://www.aliexpress.com/item/1005006885654959.html)
I just started my studies in mechatronics and wanted to buy nice private scope. Was looking at the new Siglent Sds804x hd and the Rigol alternative but since I read that they have still a lot of bugs to iron out, I'm thinking to start with less capable and cheaper portable scope first.The "bugs" the SDS804X has, these cheap scopes wish they had. Trust me. If you have the money for an SDS804X, don't waste it on a cheapie.
Ideally around 150 USD.
Am I right to guess that these ones are still better than used old analogue scope at the same price range ?
Which one would you recommend?
I have never managed to get refund from aliexpress if I had warranty issues with my purchase. Thats why I prefer local European online shops.
Is 2512G better scope than HDS242S? ... but aside that is it better in anything else ?
I have complained twice and received a refund twice.
I'm thinking to start with less capable and cheaper portable scope first.
Ideally around 150 USD.
Am I right to guess that these ones are still better than used old analogue scope at the same price range ?
I'm thinking to start with less capable and cheaper portable scope first.
Ideally around 150 USD.
Nah, simply not worth it. Not only are they much worse, they have no resale value.
The bugs aren't as bad as you hear. A recent Rigol update fixed basically all of them.
(it also introduced one really bad one but they're working on that right now. The next firmware will be here by the time you get one...)Am I right to guess that these ones are still better than used old analogue scope at the same price range ?
At least 100x better.
And they won't break down or be a constant "work in progress".
Yes, it costs half the price and does the same thing. ;)
If you have any special requirements, you need to mention them.
I didn't claim that it was better.
I meant that the oscilloscope is roughly equivalent but costs half as much.
If the DMM or the signal generator of the Owon is important to you, then the Owon is better.
Forget the bandwidth, there is no significant difference.
For me, having everything in one device is not an advantage.
If it has to be cheap, I would go for the DSO2512G and this DMM:
https://de.aliexpress.com/item/1005007385246818.html
and this AWG:
https://de.aliexpress.com/item/1005005756976271.html
This AWG has two channels and max. 20Vpp as opposed to the meager 2.5Vpp of the Owon.
But if you want everything in one device, the Owon is certainly not bad.
The FNIRSI even has a FUNCATION soft button! :-DD
@Fungus: We know these already:
https://www.eevblog.com/forum/testgear/another-dsodmm-zeeweii-dso3d12-claimed-120mhz250msps/msg4924738/#msg4924738 (https://www.eevblog.com/forum/testgear/another-dsodmm-zeeweii-dso3d12-claimed-120mhz250msps/msg4924738/#msg4924738)
https://www.eevblog.com/forum/testgear/new-handheld-touch-dso-fnirsi-2c53p-claimed-50mhz250msps/msg5438681/#msg5438681 (https://www.eevblog.com/forum/testgear/new-handheld-touch-dso-fnirsi-2c53p-claimed-50mhz250msps/msg5438681/#msg5438681)
I've been thinking about a two channel upgrade but I'm in no particular hurry. I'd prefer something really small because there's not much room in my case (the DSO154Pro is credit card size) and those DSO2512Gs look a bit chunky to me.Maybe this:
If you are familiar with the DSO154, the DSO3D12 will feel very similar in terms of UI - even though it has quite a few more buttons to control its operation.
Is it worth the extra $50? Well ... jury is still out on that. I mostly just wanted something portable and battery powered for times when those attributes are needed. Dual channels is definitely a plus for the uses I have in mind for it.
Setting timebase and vertical is much easier, too - dedicated buttons!
I like the display of where to put the multimeter cables:
(https://www.eevblog.com/forum/testgear/portable-oscilloscopes-list/?action=dlattach;attach=2380751;image)
Even better would be a single set of inputs that are internally switched, but let's not get greedy ... :)
You may have too much experience with cheap "Smart" meters that do not have current ranges.
Even better would be a single set of inputs that are internally switched, but let's not get greedy ... :)
BillyO, you are giving me far too much credit.I like to give people the benefit of the doubt. :-+ :-+
You could do it with shared jacks but you'd need to add internal relays and all sorts of stuff and any bad range selection would blow your fuses.Except in the case where your meter was hooked up to a small 50ma diode, or tiny transistor or.. something else that would not blow a 600ma fuse before giving it's own life to make yours is more interesting.
I gather most of these cheap devices aren't up to the safety ratings, they might advertise.
But has anyone modded these to upgrade the input protections?
I’ve paned to buy a Portable Oscilloscope. Not to big and not to expensive.
Around 100$ is ok, but max. 150$
On my current List
- Zeeweii DSO3D12
- DreamSourceLab DS Touch DS4T252
- ...........
Unless you think it's too large, Owon HDS200 series:The oscilloscopes from Owon are more expensive than Zeeweii. Do you get more for the extra money from Owon? I don't need DMM functionality, I already have a few DMMs.
https://www.owon.com.hk/products_owon_hds200_series_digital_oscilloscope (https://www.owon.com.hk/products_owon_hds200_series_digital_oscilloscope)
This is more a hobby project than a real usable thing.
Well it's actually way worse than this.This is more a hobby project than a real usable thing.
The Arduino ADC only works up to ~12.5kHz so usable bandwidth can't be more than about 5kHz. :)
Have you considered the Rigol DHO804? It may be slightly out of budget, but as it's PD compatible you can use any decent power bank and then have a "proper" portable oscilloscope. They often go on sale for less than the usual price
https://www.lambdaphoto.co.uk/rigol-dho804-70mhz-bw-12-bit-4-channel-high-definition-oscilloscope.html#specifications (https://www.lambdaphoto.co.uk/rigol-dho804-70mhz-bw-12-bit-4-channel-high-definition-oscilloscope.html#specifications)
https://www.lambdaphoto.co.uk/pdfs/Rigol/LAMBDA_DHO8000_Datasheet.pdf (https://www.lambdaphoto.co.uk/pdfs/Rigol/LAMBDA_DHO8000_Datasheet.pdf)
When you think about it, it make sense. 115200 bauds / 8 bits / 4 (the average amount of bytes transferred per read)
When you think about it, it make sense. 115200 bauds / 8 bits / 4 (the average amount of bytes transferred per read)
4 bytes per reading?
It's a 10 bit number, 4 bytes is 32 bits - enough to transfer 3 readings.
You can make the serial port faster than that, too.
Isn't Serial.println() (https://www.arduino.cc/reference/fr/language/functions/communication/serial/println/) converting everything into characters ?
Isn't Serial.println() (https://www.arduino.cc/reference/fr/language/functions/communication/serial/println/) converting everything into characters ?
Isn't Serial.println() (https://www.arduino.cc/reference/fr/language/functions/communication/serial/println/) converting everything into characters ?
Use Serial.write() to send bytes, e.g.:
https://arduino.stackexchange.com/questions/66300/using-serial-write-to-send-a-uint32-t-send-one-byte-x4-or-send-4-bytes-x1 (https://arduino.stackexchange.com/questions/66300/using-serial-write-to-send-a-uint32-t-send-one-byte-x4-or-send-4-bytes-x1)
EDIT:
With Serial.write(int) (2 bytes per write) I got 4464 writes/sec. I expected something higher. I removed the analogRead() from the loop (thus only doing writes) and it's still the same.
Even with start, stop and parity bits, I got 16+3 = 19 : 115200 / 19 = 6063 ops/sec
I tried to send 200 bytes at once and got 59 writes/sec (which mean 11800 bytes per sec). It's close to the theoretical 115200 bauds / 8 = 14400 bytes per sec.
So maybe one way would be to buffer ADC reads and then send it once.
12k samples @ 10 bits can be sent at 230400 baud.
I read about PC soundcard sometimes ago they have some DC filters (at least one the mic) that make somewhat unusable for anything else than AC signals12k samples @ 10 bits can be sent at 230400 baud.
OTOH: Any PC sound card will completely destroy that performance and you can use the Digilent Waveforms software with it. :)
Digilent Waveforms : is this official ?
Thanks, but the link to download the software is dead : https://analogdiscovery.com/download (https://analogdiscovery.com/download)Digilent Waveforms : is this official ?
Yes - it's the same software you would use with the Analog Discovery.
A blog post about it with some tips for interfacing with real-world signals:
https://www.nutsvolts.com/magazine/article/turn-your-computers-sound-card-into-a-scope (https://www.nutsvolts.com/magazine/article/turn-your-computers-sound-card-into-a-scope)
Can be used with "internal" sound cards as well as USB sound cards.
- Zeeweii DSO3D12
- DreamSourceLab DS Touch DS4T252
- ...........