I own this device for some time. As far as I was able to test it I would say it has couple of MHz bandwidth at most; waveforms are dancing around the screen like crazy all the time (as seen on your video) - I found it annoying; for faster signal persistence helps to get some idea about the actual shape of the waveform but I would say it is still rather rough approximation compared to real oscilloscopes; In my opinion it is just a little bit more than a toy, usefull one when you need isolated oscilloscope, but definitely for lower frequency range. Some folks discussed in the comment section actual sample rate - let's not forget interlacing, maybe, just maybe they implemented it here. Great video - many thanks!
For an aliexpress scope I'd say it's pretty good, the charger also seems to have good isolation on the PCB. Although the safety of the charger also depends on the isolation between the windings of the transformer, which we haven't seen yet.
Any transformer that small is non compliant and unsafe if the secondary isn't wound with that yellow/tan triple insulated wire. Should be terminated straight to the board or a bobbin with offset pins, so you'll see it if it was used, without unwinding or desoldering anything. That's the only right way to wind one, you simply cannot meet the creepage and clearance requirements with tape alone on a transformer that small, the margin tape alone would completely fill the bobbin. It would make for bad entertainment if they were opened and DQed on sight like that, but if you care about safety, that's about all you need to look for in a supply that size, as that's the biggest and easiest corner for them to cut.
You have nice and interesting videos. TP4056 is 1A li-ion charging chip, thats controling the battery voltage and temperature charging. This chip don't need inductor.
I got this same FNIRSI oscilloscope some years ago, but mine came without the heatsink and the irony is that the TP4056 was damaged, from the first time that I tried to charge it, it only showed a pink light (blue and red simultaneously) and doesn't took charge. I than replace the 4056 from one of those tiny lithium battery charge and protection mini boards, and boom, it worked again. But when I plug it into computer, it shows device not recognized... In other words, it tried to communicate with the PC instead of just using it's 5V, but failed to communicate. I wonder if mine got broken or it's a design flaw that it tries to recognize. I dream about plugging it into the PC and use it to take out the screenshots. But maybe it's not possible.
Not in the same league. Owon makes lower specced but honest products. Fnirsi tends to over rate their products. BTW, my first scope was an Owon SDS7102X, and my second was a VDS3102L, so I might be biased. But I genuinely think they delivered exactly what they advertised, not with much extra bells and whistles, but they did deliver what they promised.
Pretty good for a cheap Chinese oscilloscope. Inside there is an ARM microcontroller, Altera CPLD, external RAM and ADC.. more measurements need to be done. Maybe someday I'll take it to the test. 😉
The heatsink is on tp4056 chip which is a linear type lithium ion charging module.. because its linear it gets a little bit hot while charging..nlbut the circuit board is enough to cool it..
GD32 microcontroller is a clone of STM32, which makes sense since this software looks very similar to what's running on the DSO series oscilloscopes. So the one in this is a clone of STM32F103VET6, a very popular STM32 uC.
@@hullinstruments it's sort of the cold hard truth of DSOs, the requisite high speed silicon ain't cheap, so a scope with good specs ain't cheap. Now why they can't just sell these things as the ~200MSPS ~40MHz devices they are is beyond me, that's still perfectly useful for plenty of work. I've seen suggestions some pocket scopes overclock that ADC at 125 MSPS (dual channel), so maybe even an honest 50 MHz single channel scope, add a second channel that splits the ADC when used and I'd bite for like $150.
The microcontroller is a STM32 clone STM32F103VET6 ... runs the display and other functions of the oscilloscope. The other components are easy, a Altera CPLD, SSRAM, and the qfp misterious circuit MXP2088 ... only get chinese datasheet saying it is a 100MSPS ADC ... top ... there are 40MSPS models with the same MXT2088 labeling ... And this is the problem with these oscilloscope one simply does not know what ADC they are using.
i dont like that the probe is bnc and its exposed, so anytime you are within mains, you should be very careful because you can get shocked, but for the price of the unit its very good product.
@@LMB222 Yes, the outer barrel with two pins are typically chrome plated brass, no? I look for 10x probes that have metal locking collar as well, because I feel robust connectors are a minimum standard. 10x or more because I can't imagine the bnc connector was ever designed for anything near mains current.
I nearly bought this scope once. But bought an AC/DC clamp meter I need more. 👍🇮🇪🙏🏻 Hope I didn't make a mistake.(5 minutes into the video and yes I made a mistake😖) I did buy the FNIRSi DSO-TC2... 2 in 1 oscilloscope and transistor tester in one. (BUT I GOT IT WITH JUST THE ALIGATOR CLIPS AND NOT THE PROBE. IT USES A MMXC CONNECTOR AND YA NEED THE ADAPTER TO CONNECT THE PROBE) saying that I found the scope ok. But the transistor tester is giving wrong readings. NOW I THINK ITS JUST MY ONE. BAD LUCK, COZ OTHERS SHOWED THERES WORKING PERFECT. AND WE ALL KNOW HOW HARD IT IS TO GET A REFUND OR A REPLACEMENT WHEN YOU BUY ONLINE. ANY I GOT THE CONNECTORS I NEED TO USE MY PROBE I HAVE HERE. IF YOU KNOW THE PIECE IM TALKING ABOUT THE YELLOW AND BLACK ONE ON BANGGOOD MAKE SURE YOU GET IT WITH THE 10X PROBE.
@@DiodeGoneWild So what is the point of the opto isolator then ? I don't think it is working perfectly up to 110 MHz - I thought I saw a graph on the video where it was rolling off at 70 Mhz.
This scope is OK for the money but you have to be able to appreciate the difference between sample rate and bandwidth to understand the limits of this device. You can feed a 110 MHz signal into this unit and it'll give you a display but that display is not going to be based on very much real data. It's going to be a sine wave regardless of what the actual signal is.
@@1pcfred Thanks. :) What i need is 4 or 5 budgets scopes lined up in the same video reviewing and comparing. it would be my first scope so learning curve anyway.. but i dont want to spend more. i know it will be comparatively rubbish compared to a keysight or rigol.. but not wanna fll ina trap of spending 100 for 20 worth of capability.. if that makes sense lol thanks again.
@@Palmit_ I think I know what you mean. There are a lot of choices in the oscilloscope market. The performance you get for what you pay is all over the place. It looks to me like all the cheap handhelds are claiming 500 Msps. That's pretty limiting. "Real" scopes start at 1 Gsps. So if you want to get something a bit better focus on that. Otherwise with the el cheapos it's just down to features. The scope here lacks features too.
hehe i knew you couldnt resist taking apart that charger... First thing i thought of when i saw it .
"Low frequency probe, probably"
LOL! Ya think?
Fantastic review BTW, thank you! ;)
I own this device for some time. As far as I was able to test it I would say it has couple of MHz bandwidth at most; waveforms are dancing around the screen like crazy all the time (as seen on your video) - I found it annoying; for faster signal persistence helps to get some idea about the actual shape of the waveform but I would say it is still rather rough approximation compared to real oscilloscopes;
In my opinion it is just a little bit more than a toy, usefull one when you need isolated oscilloscope, but definitely for lower frequency range.
Some folks discussed in the comment section actual sample rate - let's not forget interlacing, maybe, just maybe they implemented it here.
Great video - many thanks!
For an aliexpress scope I'd say it's pretty good, the charger also seems to have good isolation on the PCB. Although the safety of the charger also depends on the isolation between the windings of the transformer, which we haven't seen yet.
The isolation was ok but the interference capacitor wasn’t a safety one therefore ‘slightly dodgy’.
@@Conservator. oh, I didn't see that one. Certainly dodgeeeeyyy
@@DiaconescuAlexandru2024
It’s going to be released in one or two days. 😉
Any transformer that small is non compliant and unsafe if the secondary isn't wound with that yellow/tan triple insulated wire. Should be terminated straight to the board or a bobbin with offset pins, so you'll see it if it was used, without unwinding or desoldering anything. That's the only right way to wind one, you simply cannot meet the creepage and clearance requirements with tape alone on a transformer that small, the margin tape alone would completely fill the bobbin. It would make for bad entertainment if they were opened and DQed on sight like that, but if you care about safety, that's about all you need to look for in a supply that size, as that's the biggest and easiest corner for them to cut.
@@Broken_Yugo huh, thanks for the explanation.
7:10 Old computers with PCI slots have a nice test signal @33 MHz on pin 16 and also AGP@66MHz on pin 7..
You have nice and interesting videos. TP4056 is 1A li-ion charging chip, thats controling the battery voltage and temperature charging. This chip don't need inductor.
I got this same FNIRSI oscilloscope some years ago, but mine came without the heatsink and the irony is that the TP4056 was damaged, from the first time that I tried to charge it, it only showed a pink light (blue and red simultaneously) and doesn't took charge. I than replace the 4056 from one of those tiny lithium battery charge and protection mini boards, and boom, it worked again. But when I plug it into computer, it shows device not recognized... In other words, it tried to communicate with the PC instead of just using it's 5V, but failed to communicate. I wonder if mine got broken or it's a design flaw that it tries to recognize. I dream about plugging it into the PC and use it to take out the screenshots. But maybe it's not possible.
You can see where the heat sink was. There is an indent in the battery shaped like the heat sink.
L M - That's the self-destruct system in puncture-ready position.
Nice little scope and reasonably priced too. Can't tell ya off the top of my head but wasn't expensive at all on banggood. Thank you D. 👍🇮🇪💚🙏🏻
I have one of these and love it. Syuper handy for quick measurements when I can't be bothered to set up the 'real' scope. Niiice!
awesome video as usual , thanks
I'd a teardown of Chinese t12 tips vs the original hakko tips
Thanks
Great review showing off all the handy features and menu items. - Looks like a good value for a basic low cost scope. THANKS
It's stable at 20 Mhz?
Altera chips on chineese product? I've never seen something like that.. it seems to be a pretty good tool for the cost
Nice review video
That's niiiiiicccccee!
You can tell it's a Chinese product because the only font they know is bootleg Times New Roman.
LMAO yeah
Likely to be MingLiU which looks like TNR but the strokes are all thinner.
Do you plan to do videos on different supermarket car battery "smart" chargers?
Fantastic! How do you feel about the Owon VDS1022I ?
Not in the same league. Owon makes lower specced but honest products. Fnirsi tends to over rate their products. BTW, my first scope was an Owon SDS7102X, and my second was a VDS3102L, so I might be biased. But I genuinely think they delivered exactly what they advertised, not with much extra bells and whistles, but they did deliver what they promised.
Pretty good for a cheap Chinese oscilloscope. Inside there is an ARM microcontroller, Altera CPLD, external RAM and ADC.. more measurements need to be done. Maybe someday I'll take it to the test. 😉
I learn so much from your videos and I like smps tear down videos.Make more videos please
The heatsink is on tp4056 chip which is a linear type lithium ion charging module.. because its linear it gets a little bit hot while charging..nlbut the circuit board is enough to cool it..
Thanks! And btw your cat is much prettier than that NYC defectors Mr. Clinton.....
GD32 microcontroller is a clone of STM32, which makes sense since this software looks very similar to what's running on the DSO series oscilloscopes.
So the one in this is a clone of STM32F103VET6, a very popular STM32 uC.
Tore off the tab instead of peeling, FFFUUU, haha.
Lol troll.
👍🏻
i was playing with diode while watching some bad videos and it "conducted" suddenly..
those scopes work quite well "value for money" for sure..
instread X1/Y1 capacitor is 103 1kv.... hmm charger already is ... ))))
DODGY!
They made an effort with a fusible resistor then saved a penny using a 1kv capacitor, unreal
Heat sink a bit loose ! Understatement of the year.!
They're overclocking that ADC by like 2.5x, or the sample rate is a lie. Best I can tell the MXT2088 is only 2x 100MSPS.
Exactly! I don't mind people doing sponsored videos but at least the honest and try to find the faults and shortcomings of the device.
@@hullinstruments it's sort of the cold hard truth of DSOs, the requisite high speed silicon ain't cheap, so a scope with good specs ain't cheap. Now why they can't just sell these things as the ~200MSPS ~40MHz devices they are is beyond me, that's still perfectly useful for plenty of work. I've seen suggestions some pocket scopes overclock that ADC at 125 MSPS (dual channel), so maybe even an honest 50 MHz single channel scope, add a second channel that splits the ADC when used and I'd bite for like $150.
need more SAAAAAAAAAAAAALT
The microcontroller is a STM32 clone STM32F103VET6 ... runs the display and other functions of the oscilloscope. The other components are easy, a Altera CPLD, SSRAM, and the qfp misterious circuit MXP2088 ... only get chinese datasheet saying it is a 100MSPS ADC ... top ... there are 40MSPS models with the same MXT2088 labeling ...
And this is the problem with these oscilloscope one simply does not know what ADC they are using.
i dont like that the probe is bnc and its exposed, so anytime you are within mains, you should be very careful because you can get shocked, but for the price of the unit its very good product.
All my o-scopes are bnc...
@@thisisyourcaptainspeaking2259 not all handheld ones are
@@thisisyourcaptainspeaking2259 metal BNC? All mine are plastic, with conductive inserts.
Anytime you are around mains with a wire you can get shocked,
You really have to know what you are doing when you are playing with mains.
@@LMB222 Yes, the outer barrel with two pins are typically chrome plated brass, no? I look for 10x probes that have metal locking collar as well, because I feel robust connectors are a minimum standard.
10x or more because I can't imagine the bnc connector was ever designed for anything near mains current.
I nearly bought this scope once. But bought an AC/DC clamp meter I need more. 👍🇮🇪🙏🏻
Hope I didn't make a mistake.(5 minutes into the video and yes I made a mistake😖)
I did buy the FNIRSi DSO-TC2...
2 in 1 oscilloscope and transistor tester in one. (BUT I GOT IT WITH JUST THE ALIGATOR CLIPS AND NOT THE PROBE. IT USES A MMXC CONNECTOR AND YA NEED THE ADAPTER TO CONNECT THE PROBE) saying that I found the scope ok. But the transistor tester is giving wrong readings. NOW I THINK ITS JUST MY ONE. BAD LUCK, COZ OTHERS SHOWED THERES WORKING PERFECT.
AND WE ALL KNOW HOW HARD IT IS TO GET A REFUND OR A REPLACEMENT WHEN YOU BUY ONLINE. ANY I GOT THE CONNECTORS I NEED TO USE MY PROBE I HAVE HERE.
IF YOU KNOW THE PIECE IM TALKING ABOUT THE YELLOW AND BLACK ONE ON BANGGOOD MAKE SURE YOU GET IT WITH THE 10X PROBE.
Nice little Scope!!! Thanks for the review!
Πολύ καλή παρουσίαση όπως πάντα!
Will you test the charger for dodginess?
Thanks.
I will buy one like it.
What about this 1C15 digital oscilloscope ? Is recommendable today 2023 ? Is there many bugs in it ?
TH-cam should require every video to include a kitty.
is that charger "China Export" certified?
If you connect to a PC USB port, does it recognize it as a device?
It's trying to, but it doesn't. Maybe some special software is needed, but I didn't manage to find any.
@@DiodeGoneWild Does it enumerate? VID:PID?
Screams AliExpress 😅
But it's probably quite usable and has decent value.
Micro-USB 😮💨
I think the opto-isolator is there to isolate the input.
No, it would be way harder to isolate signals from DC all the way to 110 MHz.
@@DiodeGoneWild So what is the point of the opto isolator then ? I don't think it is working perfectly up to 110 MHz - I thought I saw a graph on the video where it was rolling off at 70 Mhz.
Did you recently change microphones or something? There is a lot more noise in the background than usuaul
Maybe a fan in a heater. I didn't realize. It runs all winter and my brain already ignores the sound :).
@@DiodeGoneWild stay warm.
Jewel top.
💯♥️👍🏻👍🏻👍🏻👍🏻👍🏻
@keysight should give you a better one
A loose aluminum heat sink???? Dodgy ........ but nice cheap oscilloscope overall...!!!
Niceeeeeeeeeee!
That is definitely one of the better fake apple chargers I have seen.
:) hey, it does the job :))
charger is dodgy
so is it a good buy? or not a good buy? @DiodeGoneWild is it ok for first o'scope general use? or is there an alternative you would recommend?
This scope is OK for the money but you have to be able to appreciate the difference between sample rate and bandwidth to understand the limits of this device. You can feed a 110 MHz signal into this unit and it'll give you a display but that display is not going to be based on very much real data. It's going to be a sine wave regardless of what the actual signal is.
@@1pcfred Thanks. :) What i need is 4 or 5 budgets scopes lined up in the same video reviewing and comparing. it would be my first scope so learning curve anyway.. but i dont want to spend more. i know it will be comparatively rubbish compared to a keysight or rigol.. but not wanna fll ina trap of spending 100 for 20 worth of capability.. if that makes sense lol thanks again.
@@Palmit_ I think I know what you mean. There are a lot of choices in the oscilloscope market. The performance you get for what you pay is all over the place. It looks to me like all the cheap handhelds are claiming 500 Msps. That's pretty limiting. "Real" scopes start at 1 Gsps. So if you want to get something a bit better focus on that. Otherwise with the el cheapos it's just down to features. The scope here lacks features too.
Math.