!!

Not Registered?

Welcome!  Please register to view all of the new posts and forum boards - some of which are hidden to guests.  After registering and gaining 10 posts you will be able to sell and buy items on our N'porium.

If you have any problems registering, then please check your spam filter before emailing us.  Hotmail users seem to find their emails in the Junk folder.


Thanks for reading,
The NGF Staff.

Author Topic: Banggood digital oscilloscope  (Read 1293 times)

0 Members and 1 Guest are viewing this topic.

Offline MalcolmInN

  • Trade Count: (+1)
  • Full Member
  • ***
  • Posts: 2289
  • Country: gb
    • Awards
Re: Banggood digital oscilloscope
« Reply #15 on: March 16, 2018, 10:52:39 AM »
a 5% off email/coupon would have had better effect !

Should I press the buy button or not , that is the question for today :)

Offline Malc

  • Trade Count: (+3)
  • Full Member
  • ***
  • N Gauge Society Number: 21878
  • Posts: 4381
  • Country: gb
  • Gender: Male
    • Awards
Re: Banggood digital oscilloscope
« Reply #16 on: March 16, 2018, 03:02:18 PM »
App for what Malc? Banggood or a simulated scope?  :confused2:

Banggood.
I'm not sure if life is passing me by, or trying to run me over.

Offline austinbob

  • Trade Count: (+3)
  • Full Member
  • ***
  • N Gauge Society Number: 23835
  • Posts: 4348
  • Country: gb
  • Gender: Male
    • Awards
Re: Banggood digital oscilloscope
« Reply #17 on: March 16, 2018, 03:43:31 PM »
I've been using a Velleman HPS140 which works well for me. 40meg sampling and 10MHz signal bandwidth with 100mV/cm max sensitivity.
Cost about £80 some years ago. Probably replaced by newer and better versions by now.
 :beers:
Size matters - especially if you don't have a lot of space - and N gauge is the answer!

Bob Austin

Offline themadhippy

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 545
  • Country: gb
    • Awards
Re: Banggood digital oscilloscope
« Reply #18 on: March 16, 2018, 03:47:59 PM »
theres a few apps for sillyscopes,but most rely on the internal mic,or some external circuitry to stop the phones mic input from being overloaded
Quote
I'm also waiting on the function generator kit
This is one thing i do use an app for,even though ive a  "proper" unit based around the 8038 chip the app is very useful when im away from my workbench.Its alsohandy for annoying yoofs who think the whole world wants to hear the tinny music from there phone,dial it up above 18khz and hit play,noise what noise? i cant hear it,nor can most people over there mid  20's

Offline The Q

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 723
  • Country: gb
    • Awards
Re: Banggood digital oscilloscope
« Reply #19 on: March 16, 2018, 05:13:31 PM »
I was looking at getting one of those bangood scopes, when I bought a 20meg Farnell scope for a fiver at a car boot. It was a family selling off deceased relatives stuff (a big Van of load furniture and everything). I could see by the electronics stuff he had been a TV repair man.


Years ago one of our group on a course, was spending a fortune on hifi. He kept saying can't you hear the difference. We later had the use of signal generators and found he could hear 3khz higher than the rest of us. He was a handy source of cheap good quality hifi as he gradually upgraded his gear.

Offline austinbob

  • Trade Count: (+3)
  • Full Member
  • ***
  • N Gauge Society Number: 23835
  • Posts: 4348
  • Country: gb
  • Gender: Male
    • Awards
Re: Banggood digital oscilloscope
« Reply #20 on: March 16, 2018, 05:34:52 PM »
Pardon....
Never mind 3kHz higher!! I can just about hear 3 kHz!!!.
I went for a hearing test recently I put the headphones on and the guy apparently said 'can you hear this frequency?' I gave no response so he asked again 'can you hear this frequency. After a third time he took headphones off and shouted 'did you hear my frequency?' So I said I can't hear you frequently in fact I can hardly hear you at all..
 :beers:
Size matters - especially if you don't have a lot of space - and N gauge is the answer!

Bob Austin

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #21 on: March 16, 2018, 09:11:54 PM »
 :laughabovepost: :smiley-laughing:
Vision over visibility. Bono, U2.

Offline ntpntpntp

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 2366
  • Country: gb
    • Awards
Re: Banggood digital oscilloscope
« Reply #22 on: March 16, 2018, 10:59:07 PM »
My DSO138 came as a kit, from eleduino.com  in 2015. Cost me about £25 inc. postage.

No problems assembling and soldering, and I'm quite pleased with the result. I don't use it that much but it does the job when needed.
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #23 on: March 23, 2018, 02:18:32 AM »
Glad you got it together - certainly a better result than me. I've since looked at a couple of YouTube videos, which I should have done before I started construction.

Anyway, the 37 sensor pack from Banggood arrived today. So much cheaper than the same kit in the shops here!!



As did the function generator kit.



Let's hope I have better success building this. However I've had a look at a few assembly videos and picked up a few tips, like cleaning the board with IPA and using flux. The instruction sheet is no where near as good for this kit as the scope kit. For example, there is no indication as to which way round the electrolytics go on the PCB. Thanks to the videos, I know!

I'll post the results.  :beers:
Vision over visibility. Bono, U2.

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #24 on: April 12, 2018, 02:30:19 AM »
I continue to have absolutely zero success with these cheap Chinese kits. Having watched heaps of videos on how to put this thing together, I finished it (the function generator) half an hour ago.



Anyway, connected it to my new scope, plugged it in to 12V - nothing. Well, not nothing.... a funny smell and the chip got so hot I couldn't touch it!

Ah well.... it was only ten bucks and it kept me off the street for a few hours  :worried:
Vision over visibility. Bono, U2.

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #25 on: April 12, 2018, 03:20:33 AM »
Now I'm really kicking meself. Just put the meter on the plug. Turns out I had these wires the wrong way around:



I had the polarity back to front!!!  :dunce: :-[ :doh:

Moral of story: check before you plug it in  :(
Vision over visibility. Bono, U2.

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #26 on: April 12, 2018, 06:40:43 AM »
Epilogue:

With the 12VDC supply the right way round, the chip is no longer hot, and I've managed to get a sort of sine wave out of it, but the controls do nothing.

The electronics are fried, for sure, as the electrolytics got hot as well as the chip, which of course they would with the wrong polarity!

I may order another one, but in the meantime I'm waiting on one of these:

https://m.banggood.com/DANIU-FY3224S-24MHz-Dual-channel-Arbitrary-Waveform-DDS-Function-Signal-Generator-Sine-Square-Wave-Sweep-Counter-p-1157268.html

So I might not bother!

Just to add insult to injury, I'm now down to 36 sensors out of the pack of 37 - I've managed to cook one of them as well!

Not having a good day electronically. Time  to retire to club for a beer.  :beers:
Vision over visibility. Bono, U2.

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #27 on: April 14, 2018, 01:54:06 AM »
Well, this arrived yesterday:



But my run of luck with Chinese products continues to be not very good..... the plug that came with it looks like this:



Whereas the Aussie socket looks like this!  :doh:

« Last Edit: April 14, 2018, 01:59:20 AM by Bealman »
Vision over visibility. Bono, U2.

Offline NinOz

  • Trade Count: (0)
  • Full Member
  • ***
  • N Gauge Society Number: Ex3504
  • Posts: 687
  • Country: au
  • Gender: Male
    • Awards
Re: Banggood digital oscilloscope
« Reply #28 on: April 14, 2018, 08:56:58 AM »
A quick and dirty fix (not recommended).
A large pair of pliers and twist each parallel prong into a slanted prong.
I have seen this on some Oz supplied electronics, it works.  An adaptor is quite cheap.
To be called pompous and arrogant - hell of a come down.
I tried so hard to be snobbish and haughty.

Online Bealman

  • Moderator
  • Trade Count: (0)
  • Full Member
  • ****
  • N Gauge Society Number: 23151
  • Posts: 14504
  • Country: au
  • Gender: Male
  • Whoops back we go
    • Awards
Re: Banggood digital oscilloscope
« Reply #29 on: April 14, 2018, 09:03:02 AM »
Cheers, mate. I've seen that mentioned in Silicon Chip mag.

No sweat, a new lead from Jaycar for $6 fixed problem.  :beers:
Vision over visibility. Bono, U2.

 

Please Support Us!
December Goal: £55.00
Due Date: Dec 31
Total Receipts: £265.00
Above Goal: £210.00
Site Currency: GBP
482% 
December Donations


Advertise Here