Micsig STO1104C Tablet scope - with knobs on!

[mikeselectricstuff]

https://youtu.be/C7Ee0wYtAZY

[LapTop006]

Looks like it's almost nice enough for me to drop my idea to convert a current InfiniiVision to battery operation.

[rsjsouza]

Funny, I just saw this one today at their website. I'll watch the video later.

[SmokeDetector]

Where are people buying this unit from?

The Micsig AliExpress store has them for US$755 with batt & bag

Ebay has this listing, for example: https://www.ebay.com.au/itm/Micsig-Tablet-Oscilloscope-STO1104C-Plus-Full-Set-100MHz-4CH-Touchscreen-Button/254141844752?hash=item3b2c08cd10:g:UmAAAOSw5XJcdfH~

Which for US$684 has the same batt and bag options, plus a cable that looks like maybe HDMI, and "software" which I take to mean some serial decode options?

Anyone have any ideas or experience regarding the best option for purchase?

[Berni]

Looks like it's almost nice enough for me to drop my idea to convert a current InfiniiVision to battery operation.

Don't drop that idea just yet.

We have the old non knob Micsig at work and it's kinda a clumsy scope in general of how the UI works. But considering its chinese firmware its actually not bad. Still this is the best scope you can get in such a form factor, excellent for when you want to bring your scope to the DUT rather than bring your DUT to the scope.

Actually since we had the scope for a while we have considered perhaps making a "battery backpack" for the MSOX3000 we have.

[Cliff Matthews]

I don't know any Russian, but this up-close teardown with sharp PCB views is really nice. I must talk this over with me other half.. wish me luck, but I am worried about how responsive they will be to many issues illustrated by mikeselectricstuff.

[esbwong]

We finally decided to get one STO1104 to try. And we like it enough to get more.
1. Battery and Charger

When the scope is powered off and supplied AC-DC power adaptor connected, the green power button indicates if the internal battery is being charged.
The green power button blinks to indicate the battery is still being charged. Once the battery is fully charged, the power button will stay on solid green.
When the scope is first turned off with power adaptor attached, the screen shows a large battery icon momentarily. It indicates if the internal battery is charged. (It always starts from zero to 100% before restarting again at the current battery charged precentage.)
When the scope is powered on, check the small battery icon at the lower right corner for battery status. The flash sign seems to appear if the power adaptor is connected.

2. Grounding

The scope itself is grounded via the supplied AC-DC power adaptor.
The resistance between the ground pin on the scope and the earth pin of the supplied power adaptor is about 1K ohm.

If this is not desired, the scope can be operated from its internal battery.

Take extra caution when operating the scope with floating ground.

3. HDMI Connection

The HDMI output is at 800x600 resolution and cannot be changed. Thus it will be the connected device that will perform the scaling to display the scope image on the connected device.

Another thing to watch out for is scope grounding when HDMI cable is connected.

4. Screen Capture

As for firmware 1.0.56, the background color of screen capture is black and it cannot be changed.

Micsig customer support suggested that they will allow a choice of white background in the next firmware release.

5. Serial Decoding

When the scope is put into text-only display serial bus decoding mode, the "AUTO" button does not reset this mode. The only way to exit this text-only display mode is to press the icon from the bottom pull-up on-screen menu again.

We were thinking the "AUTO" button will automatically get the scope back to graphic display but we were wrong.

6. Horizontal and Vertical Cursors

When these are turned on, the corresponding measurement numbers will always appear at the upper right quardant of the screen, which sometimes happen to overlap with the displayed waveforms. Unfortunately there seemed to be no means to move these displayed numbers, i.e. we need to move the overlapping waveforms away.

7. Fan Noise

Micsig has addressed the noisy cooling fan issue from their earlier products by using thermal control on fan speed. However some people still find the fan noise a bit loud, especially for home environments.

8. Vertical Waveform Position

We can use the knob to adjust vertical position of the waveforms. However, this scope has no numerical display of the position unlike a TEK scope where a number corresponding to the vertical postion in divisions is shown during the adjustment.

This makes aligning the channels vertically a little tricker than otherwise.

[GeorgeOfTheJungle]

Anybody knows if the batteries of the STOs and TOs are the same?

Edit:
The batteries are different.

[hgjdwx]

Android beta

[MT]

Where are people buying this unit from?

The Micsig AliExpress store has them for US$755 with batt & bag

Ebay has this listing, for example: https://www.ebay.com.au/itm/Micsig-Tablet-Oscilloscope-STO1104C-Plus-Full-Set-100MHz-4CH-Touchscreen-Button/254141844752?hash=item3b2c08cd10:g:UmAAAOSw5XJcdfH~

Which for US$684 has the same batt and bag options, plus a cable that looks like maybe HDMI, and "software" which I take to mean some serial decode options?

Anyone have any ideas or experience regarding the best option for purchase?

https://www.batronix.com/versand/oszilloskope/Micsig-STO1104C.html

[pmaggi]

Does anyone know if android functionality is already available as a standard update?
Does it also work on a TO1104 tbook?

[Micsig_support]

Does anyone know if android functionality is already available as a standard update?
Does it also work on a TO1104 tbook?

Android system only works in STO1000 series. TO1104 is belong to TO1000. it does not support now.

[Micsig_support]

Hello, We just make this video of STO1000C, there are some methods to let you know to how to use our scope.

[Micsig_support]

Anybody knows if the batteries of the STOs and TOs are the same?

Edit:
The batteries are different.

there are different. see pictures here. STO1000C battery is more easier to accessble than TO1000.

[bibi]

Hello, I just come to get a STO1104C on aliexpress.
But the Firmware seems to be a linux OS (version info: 1.0.56) not an Android OS.
How can I get  an Android firmware ?
I tried to update the firmware but it's latest.
In micsig.com website no firmware exists for STO1104C.

In settings we can only select language between english and chinese.
In Android version we can select other language (I'm looking for french language).

[Micsig_support]

Hello, I just come to get a STO1104C on aliexpress.
But the Firmware seems to be a linux OS (version info: 1.0.56) not an Android OS.
How can I get  an Android firmware ?
I tried to update the firmware but it's latest.
In micsig.com website no firmware exists for STO1104C.

In settings we can only select language between english and chinese.
In Android version we can select other language (I'm looking for french language).

hello, you need to download a firmware to upgrade. pls send one email to [email protected], they will tell you how to do it.

[bibi]

Hi !
I thank you Micsig_support !
Sales support of Migsig answered to me very fast and I could upgrade to Android Os without problem !

I just come to test IIC decoding.
Amazing !
I can decode very eysily any communications between processor and other components.

Regards,
bibi

[PTR_1275]

Anybody got some more feedback on these scopes after using them for a while now?

I have been thinking on and off about getting one, but I would like to know peoples honest opinions on how they have found them to use.

I have bench scopes, so this would only be used away form the bench and probably not that often. There is a group I volunteer at that we occasionally need a scope and this would be perfect for that rather than dragging along a bench scope.

The local distributor for them are priced pretty well on the models they stock, so much so that it is cheaper to buy locally than through Batronix not including freight etc... and I then get local warranty support. They don't show the STO as a stocked model, but I would as them if they can order one in with their next Micsig order.

Cheers

[voltsandjolts]

I have an STO1104C Plus on the desk here.
For the money, it's the best battery powered portable scope IMHO.
Decodes work well, reasonable memory depth, no firmware bugs. It just works.
One minor thing is that sometimes the knob encoders will miss a pulse, I mean you feel the detent click but the on screen setting doesn't change.
I bought it to use as a portable scope but often using it on the bench now.

[TechnikCR]

Hi,

I purchased the STO1104C in January this year and I am very pleased with it so far. If you are a field engineer, you will certainly appreciate its battery capability – it can run for approx. 4-5 hours. I have charged it dozens of times and it still holds charge as new.
The scope is responsive and serial decoding works well. I use cursor measuring a lot and what I would like to see in future firmware is the possibility of moving the measurement values away from the trace. The values have a same colour as the Trace and Horizontal/Vertical Cursors and sometimes cannot be read unless the trace is moved aside. It is just a minor complaint and sounds like it can be fixed easily in the firmware. Android app for a remote control as well as FTP client works well and all data – screenshots, video recording, etc. can be easily accessed wirelessly.   

MicSig support is fantastic. I had some problems with upgrading the Linux firmware to the Android one and the support came up very quickly and all my questions answered in a friendly manner.

All in all, the scope is great and I think you won’t regret buying it.

[Axk]

Hi everyone!
Sorry if it's a wired off-topic question.

Does this scope have a strong plastic smell? (may be subjective of course, but I don't have a local retailer where I can smell it myself )
I'm comparing to Rigol 1054z (a good scope, but have a family member allergic to the 1054z smell , the smell is less strong with time, but still there. )
Better still if there's anyone with a 1054z and this scope can you compare how these 2 smell close-up?
Is it better (less smell) than a 1054z?

Also is the smell stronger with the scope on and the fan going as with 1054z?

[2N3055]

DS1054Z had plastic smell for maybe week or two. Your problem is that you keep it hermetically closed, carefully making sure it will never air out and stop smelling. Keysight 3000T was same, as well as any other instrument made of plastic. PCBs, components, and wiring will also initially have smell until they gas out volatile compounds.

[Axk]

1054z is particularly bad for some reason, some different type of plastic I suppose, kept it in the open for a couple of weeks, the smell is much weaker now, but still there and they can still smell it and get an allergic reaction Didn't happen with other things like the EEVblog multi meter.

[Powernun]

Hi everyone!
Sorry if it's a wired off-topic question.

Does this scope have a strong plastic smell? (may be subjective of course, but I don't have a local retailer where I can smell it myself )
I'm comparing to Rigol 1054z (a good scope, but have a family member allergic to the 1054z smell , the smell is less strong with time, but still there. )
Better still if there's anyone with a 1054z and this scope can you compare how these 2 smell close-up?
Is it better (less smell) than a 1054z?

Also is the smell stronger with the scope on and the fan going as with 1054z?

Just got my STO1104C yesterday and unless I stick my nose right on it I smell nothing.

[0db]

To me, this product looks more like a cheap "protocol analyzer" than like a "DSO"