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DORHEA

DSO 138 Oscilloscope Kit Open Source with Probe 2.4" TFT 1Msps Digital Oscilloscope Kit with DSO 138 Case + Probe 13803K for Electronic Learning Set

    • Based on 239 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Wednesday, Nov 27
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Features

  • This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display screen, can be used as ARM test development board.Can freeze at any time waveform display (HOLD function).Comes 1Hz /3.3V square wave test signal source.
  • With automatic, regular and one-shot modes, easy to capture the moment waveform.Available rising or falling edge trigger.Observable previous trigger waveform (negative delay).
  • With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.Waveform storage function: will not lose the waveform after power off.
  • Partially open-sourced,the MCU has been programmed.The oscilloscope circuit boards components are pre-soldered, no need soldered by yourself.The case is unassembled and requires assembly.
  • Adjustable vertical displacement,and with instructions,which increase the likelihood of adding different features or developing new applications on the hardware for users.

Package Dimensions ‏ : ‎ 7 x 6.9 x 1.9 inches; 10.41 ounces


Date First Available ‏ : ‎ May 30, 2019


Manufacturer ‏ : ‎ DORHEA


Best Sellers Rank: #180,084 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #117 in Lab Oscilloscopes


#117 in Lab Oscilloscopes:


Customer Reviews: 3.8 3.8 out of 5 stars 239 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Did not work on first try, but then it started without fixing anything!
Just finished putting the case together, which takes a bit of figuring out (no instructions), but it is not rocket science either. But then connected it to my regulated bench power supply (set for 9.1V), and nothing... I like electronic projects, so I will fiddle with it and try to revive it, but if I am ordering it assembled it is because I want it of work out of the box! I get that this is a cheap unit DIY unit and I was well aware of the case not coming together, but if I wanted to have to fiddle with it, I would have ordered the parts kit! EDIT: for some reason, 30 minutes after writing above review, I was going to start checking for problems, and the thing booted up when I connected the power. God only knows why it did not power up before, but it is working fine now! I tested it with a tone generator, and it is right on the money! So I changed my rating from 1 to 5 stars, because, for the money, there is not anything better! Great little gadget! I intend to use it to trouble shoot my guitar pedals and other electronic projects! ... show more
Reviewed in the United States on August 3, 2020 by Juan F Rabat Lince
    • Good value, good functionality
This is a basic, yet functional Oscilloscope. It displays frequency, and voltage on screen. It works out-of-the-box. The acrylic case does not include instructions, I was able to figure it out and used ALL the panels provided. For the cost and functionality, this is a great hobbyist O’Scope and a great value. ... show more
Reviewed in the United States on October 19, 2020 by Moke
    • Great oscilloscope, challenging case
Review Image by Amazon Customer Amazon Customer
Don't let the reviews stating that there are no instructions on how to assemble the case discourage you. In fact, the instructions are in the product description itself, though far enough down that they are easily missed. Look over the instructions before buying so you at least have an idea of what it takes to assemble it. It is still a challenge to assemble, but much less so when following the directions. Overall, I've been very happy with the scope. It's relatively simple to use and the cost is impossible to beat. Take the $33 plunge! ... show more
Reviewed in the United States on April 8, 2022 by Amazon Customer Amazon Customer
    • A toy. Good solder project. Very cheap product.
Review Image by Brian Brian
Had it worked. I would have enjoyed the compact size. Out of the box: No instructions for the case assembly. More switch levers and not enough button levers. Had to Mc.Guyver one to put it togeter after searching an hour for a YouTube how to vid. Bought the pre assembled board. Wish I hadn't. Lcd is broken. Over all. Had I bought the to be assembled kit. It would have made a good solder practice item. Very cheaply made toy. ... show more
Reviewed in the United States on January 16, 2022 by Brian Brian
    • The case is a nightmare and not worth it
The oscilliscope itself - fine, does what it should, passable, can easily be found cheaper without the case. The case - oh my god what an absolute nightmare this thing is. Like a lego kit from hell. The instructions are trash, and even if you follow them, parts of it make no sense and it ends up being weird and janky. I've taken it apart probably 3 times now because the buttons are so finnicky they barely work. Save your money and buy this without the case, I promise you it works fine with no case and it is not worth the hassle. ... show more
Reviewed in the United States on September 20, 2023 by adidiaia
    • The case has no instructions
Given the quality of the other documentation for this device, the lack of instructions to build the case is strange. That fact is why I dinged this product for "beginners". So, after figuring out the case build (mostly and after a couple of attempts) is a drag, but the unit is functional, and it would make a good "first scope" for any bench -- or even an easy grab when dragging out the full size/featured scope seems more work than is needed at the moment. Cover the hardware on the bottom of the built case because that is a live ground and putting the unit on a conductive surface can let out the magic smoke. Recommend. ... show more
Reviewed in the United States on April 17, 2024 by Michael S.
    • Fun kit
Me any my kid put this together. Was a fun build. The PCB is all assembled and functional which surprised me, I thought it would be in pieces. My kid has used it a lot for 'scoping his electronic tinkering, it works quite well.
Reviewed in the United States on July 5, 2021 by David Workman
    • Subpar Performance
I expected this unit to work adequately with low precision given the unit is very affordable However, it performed not accurately at all. Very disappointed wiith the product. Recommend spending little more money and get a decent one.
Reviewed in the United States on April 10, 2021 by Erica

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