Micsig STO1104C Tablet scope - with knobs on! - Page 1
Forum section: electronics / testgear

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: March 17, 2019, 09:58:14 pm
content: https://youtu.be/C7Ee0wYtAZY

author: LapTop006
author_rank: Unknown
timestamp: March 18, 2019, 02:43:32 pm
content: Looks like it's almost nice enough for me to drop my idea to convert a current InfiniiVision to battery operation.

author: rsjsouza
author_rank: Super Contributor
timestamp: March 18, 2019, 07:45:58 pm
content: Funny, I just saw this one today at their website. I'll watch the video later.

author: SmokeDetector
author_rank: Newbie
timestamp: April 01, 2019, 03:04:51 am
content: Where are people buying this unit from?The Micsig AliExpress store has them for US$755 with batt & bagEbay 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?

author: Berni
author_rank: Super Contributor
timestamp: April 01, 2019, 07:24:58 am
content: Quote from: LapTop006 on March 18, 2019, 02:43:32 pmDon'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.

author: Cliff Matthews
author_rank: Unknown
timestamp: April 14, 2019, 03:58:55 pm
content: I don't know any Russian, butthis up-close teardown with sharp PCB viewsis 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.

author: esbwong
author_rank: Newbie
timestamp: April 15, 2019, 05:38:15 am
content: We finally decided to get one STO1104 to try. And we like it enough to get more.1. Battery and ChargerWhen 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. GroundingThe 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 ConnectionThe 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 CaptureAs 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 DecodingWhen 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 CursorsWhen 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 NoiseMicsig 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 PositionWe 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.

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: August 31, 2019, 06:14:16 pm
content: Anybody knows if the batteries of the STOs and TOs are the same?Edit:The batteries are different.

author: hgjdwx
author_rank: Regular Contributor
timestamp: September 25, 2019, 06:23:20 am
content: Android beta

author: MT
author_rank: Super Contributor
timestamp: December 23, 2019, 01:37:16 pm
content: Quote from: SmokeDetector on April 01, 2019, 03:04:51 amhttps://www.batronix.com/versand/oszilloskope/Micsig-STO1104C.html

author: pmaggi
author_rank: Contributor
timestamp: February 02, 2020, 03:46:35 pm
content: Does anyone know if android functionality is already available as a standard update?Does it also work on a TO1104 tbook?

author: Micsig_support
author_rank: Regular Contributor
timestamp: March 04, 2020, 04:45:27 am
content: Quote from: pmaggi on February 02, 2020, 03:46:35 pmAndroid system only works in STO1000 series. TO1104 is belong to TO1000. it does not support now.

author: Micsig_support
author_rank: Regular Contributor
timestamp: March 04, 2020, 04:46:41 am
content: Hello, We just make this video of STO1000C, there are some methods to let you know to how to use our scope.

author: Micsig_support
author_rank: Regular Contributor
timestamp: March 04, 2020, 04:49:41 am
content: Quote from: GeorgeOfTheJungle on August 31, 2019, 06:14:16 pmthere are different. see pictures here. STO1000C battery is more easier to accessble than TO1000.

author: bibi
author_rank: Newbie
timestamp: May 07, 2020, 08:51:03 pm
content: 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).

author: Micsig_support
author_rank: Regular Contributor
timestamp: May 08, 2020, 03:54:31 am
content: Quote from: bibi on May 07, 2020, 08:51:03 pmhello, you need to download a firmware to upgrade. pls send one email to sales@micsig.com, they will tell you how to do it.

author: bibi
author_rank: Newbie
timestamp: May 09, 2020, 06:15:17 pm
content: 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

author: PTR_1275
author_rank: Frequent Contributor
timestamp: May 22, 2020, 04:40:16 am
content: 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

author: voltsandjolts
author_rank: Unknown
timestamp: May 22, 2020, 11:52:15 am
content: 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.

author: TechnikCR
author_rank: Newbie
timestamp: May 25, 2020, 06:20:55 pm
content: 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.

author: Axk
author_rank: Regular Contributor
timestamp: June 20, 2020, 08:22:43 pm
content: 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?

author: 2N3055
author_rank: Super Contributor
timestamp: June 20, 2020, 08:48:31 pm
content: 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.

author: Axk
author_rank: Regular Contributor
timestamp: June 20, 2020, 08:56:20 pm
content: 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 reactionDidn't happen with other things like the EEVblog multi meter.

author: Powernun
author_rank: Contributor
timestamp: June 20, 2020, 09:25:55 pm
content: Quote from: Axk on June 20, 2020, 08:22:43 pmJust got my STO1104C yesterday and unless I stick my nose right on it I smell nothing.

author: 0db
author_rank: Frequent Contributor
timestamp: September 05, 2020, 08:16:08 pm
content: To me, this product looks more like a cheap "protocol analyzer" than like a "DSO"

author: Ghislain
author_rank: Regular Contributor
timestamp: March 05, 2021, 09:40:08 am
content: Does anyone know a good place to source a Micsig STO1104C 7.4V 7500mAh Li-ion battery? They seem to be impossible to find?

author: Fungus
author_rank: Super Contributor
timestamp: March 05, 2021, 10:44:56 am
content: Quote from: Ghislain on March 05, 2021, 09:40:08 amJust email Micsig and ask them. They'll probably send you one directly.I've emailed Micsig a few times and they're very responsive.

author: DaneLaw
author_rank: Frequent Contributor
timestamp: March 08, 2021, 11:40:54 am
content: Tried to check the wfps rate on my unit, and the highest freq I saw was 103k, but mostly around 95k to 100k, which I reckon would indicate an ideal wfps that peaks around 95.000 to 100.000 in ideal circumstance (1ch, specific sett for optimal wfps stats.)but are using a very crude MiniWare DSO212 to take the out-freq-reading, so could be that Im taking something for granted here:https://i.imgur.com/nNcrhSz.mp4I notice Micsig showing a YT-video taking a waveform capture reading at 136.0000 but It is likely the newer E-model that is rated higher then C variant..(80k / 130k)If 95.000 to 100.000 wfps-stats are loyal (C-variant) then it's certainly above spec and quite a bit +20% to 25%.memory depth cycling, visual / 2160p.FFT with a 1Hz to 7Ghz multiRF tool..(though its a crude menu feature on an SDR)https://i.imgur.com/SuaRN6y.mp4)Though showed carrier signals to around 500MHz (490MHz).btw that red-value, you can read on top, that tops at 87.500 (125MSa/s) as I recall in FFT mode (70.000 with 1Gs/s) is that the FFT points?.. if not how many FFT points are Micsig able to operate with as the FFT does seem quite responsive ?2160pFFT with one of these 70USD 60MHz DDS from China (FY6900)https://i.imgur.com/i5Kh1OU.mp4--The iOS or Android or PC app.. around 0.25ms in general delayhttps://i.imgur.com/9K0mJxu.mp4The Micsig scopes, works quite good with either a normal RF mouse, or one of these Air mouse, that many are using with fx Media box or TVs..In lack of a bonafide lab bench, I appreciate the bag, and one can have the current clamps and probes and mouse and all that jazz in the bag' and more or less just put it back in the closet when not in use, quite ideal in my situation and when charging I tend to use these power delivery power banks with PD decoy and can manage around 90watt..https://tinyurl.com/s53ppacuand really cherish the adjustable 3v to 25v barrel DC aspect for everyday things.https://tinyurl.com/ykd5u3ndthe Micsig scope peaks around 30watt in use while charging batterypack.The native 12v5A PSU is a noisy fellow.The 5V USB is able to run external screens or DDS or take hard drives or SDcards at least up to triple digits of GB.The USB socket were also able to run USB docks, at least to a certain extent with the test I made with numerous different mouse RF-receivers thrue a USB dock 1-to-4 (RF air mouse remote controller + normal RF mouse and both valid at the same time, could to a certain extent be handy, for a teacher on a crude trainer-setup on fx a big screen or projector, while the student(s) is also able to maneuver the scope in certain demo-scenarios, but the USB was able to take multiple USB inputs at the same time with a dock, for hard drives you, likely need to format for FAT partition.The small MicroUSB port, not sure what the purpose of that socket is, and same goes for the LAN interface, anybody been able to take advantage of these sockets in a manner where it benefits.XY CCT to 55" 4K LG OLEDNot that fund of the latest OTA update (fall 2020 oct12 3.4.39) generally feel it has made the "touch" less responsive.Micsig STO CCT / 2160phttps://youtu.be/84h7Pve-vpE?t=143Noob tumbling / 2160https://youtu.be/Iy2NvuZUYXk?t=7

author: entropi
author_rank: Contributor
timestamp: March 09, 2021, 02:32:41 pm
content: Does this scope support analog offset? I don't see it mentioned in the manual.What I'm referring to:https://www.picotech.com/library/application-note/using-analog-offset-to-maximize-oscilloscope-resolution

author: nctnico
author_rank: Super Contributor
timestamp: March 09, 2021, 02:43:55 pm
content: Quote from: entropi on March 09, 2021, 02:32:41 pmYou can assume it does. There is no simple way to apply offset in the digital domain without losing ADC resolution. Picoscope turns it into a feature but what they describe is how the analog frontend of every DSO works. However the amount of offset that can be applied differs between brands.

author: Fungus
author_rank: Super Contributor
timestamp: March 09, 2021, 02:56:53 pm
content: Quote from: nctnico on March 09, 2021, 02:43:55 pmThe offset isn't usually under direct user control, it's part of the 'scopes calibration.(If you connect the required offset voltage to an input then do "auto-cal" will it apply that DC offset to the channel until you do "auto-cal" again?)

author: nctnico
author_rank: Super Contributor
timestamp: March 09, 2021, 03:19:58 pm
content: Quote from: Fungus on March 09, 2021, 02:56:53 pmA DSO frontend usually has a DAC which applies an offset to the signal (using a summing amplifier stage) before it goes into the ADC. The offset can consist of the following components: DC calibration offset, voltage offset (=vertical position) and vertical offset (the latter is a fixed number of divisions regardless of the V/div setting).

author: Fungus
author_rank: Super Contributor
timestamp: March 09, 2021, 04:12:29 pm
content: Quote from: nctnico on March 09, 2021, 03:19:58 pmTrue.If you can keepallof the signal on screen by adjusting vertical position then you have "analog vertical offset".If any part of the signal goes above or below the screen then you run into the risk of overloading the gain amplifiers and the signal could distort.