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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

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$26.99

$ 12 .99 $12.99

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  • 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.



Product Description

dso138 oscilloscope kit

Specifications:

Maximum Real-time Sampling Rate: 1Msps

Accuracy: 12Bit

Sampling Buffer Depth: 1024 bytes

Analog Bandwidth: 0-200KHz

Vertical Sensitivity: 10mV / Div - 5V / Div (1-2-5 progressive manner)

Input Impedance: 1MΩ

Maximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)

Coupling Modes: DC / AC / GND

The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)

Supply Voltage: DC 9V

digital oscilloscope kit

Oscilloscope Circuit Boards

The oscilloscope circuit boards components are pre-soldered, no need soldered by yourself.

PCB size: 117 X 76mm / 4.6 X 3in

Screen size: 52 X 40mm / 2 X 1.57in

DSO138 Case

Digital Oscilloscope 2.4" TFT Transparent Acrylic Case

The digital oscilloscope 2.4" TFT transparent acrylic case is unassembled and requires assembly.

This case is a special DIY item and it include 9 pieces and 1 bags case accessories.

case

How to install the case :

First you need to peel off the protective film on the case.

Then install according to the picture.

Oscilloscope

Package Included:

1 X Oscilloscope circuit boards

1 X Probe

3 X User manual (English)

1 X Digital oscilloscope acrylic case

Oscilloscope circuit boards

Digital oscilloscope acrylic case

Probe

Manual

The method of opening/closing waveform parameters display :

Put the cursor at the time base position, and long press the [OK] key.

Save waveform method :

Press [SEL] and [+] at the same time.

The method of calling out saved waveform :

Press [SEL] and [-] at the same time.

Method to enter the test mode :

Press [OK] and press [RESET] button.

If you see the LED flash quickly, it means that the PB or PC port of the single-chip computer (these ports contain the connection with the LCD) has a short circuit, which needs to be found and removed.

If you see an LED flashing in a period of about 4 seconds, you can use a voltmeter to find possible openings in the connection lines related to the MCU port.

Please refer to the instructions for details.


Irvan
Reviewed in the United States on March 18, 2025
Totally bummed me out man. I was looking forward to the kit and it came assembled alread.ok no problem but then after the plastic box assembly “situation” go to power it and the screen is cracked.👎Update!I returned the busted oscilloscope and they replaced with a solid one.I look forward to exploring wave shapes in the future.Here’s a pic of a decent sine wave, not bad👍
javilk
Reviewed in the United States on November 3, 2024
I have a $400+ Siglent four channel oscilloscope, and two of these little little things. Guess which I use more often! (Laughing!) The Siglent is on the active equipment shelf in my lab for more demanding work, while the little scope travels with me. The second one is dedicated to my music synthesizers and such. They are disposable, good for higher risk situations.The case... I just use the top and bottom plates with the longer sides spacing them, leaving the switch sides open. Given the poor case design, it is easier to use if you leave all that crap out. And I only peeled the paper off the top plate, less chance of static that way.
Michael S.
Reviewed in the United States on April 17, 2024
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.
adidiaia
Reviewed in the United States on September 20, 2023
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.
Customer
Reviewed in the United States on April 8, 2022
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!
Erica
Reviewed in the United States on April 10, 2021
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.
Juan F Rabat Lince
Reviewed in the United States on August 3, 2020
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!
Le Vache
Reviewed in the United States on May 22, 2020
Came pre-assembled. Would not power on, right out of package. Returned. No instructions for the case, which I was warned about in previous comments and was not worried about. I had to look closely at the schematic to figure out what the polarity was on the DC power jack (normal for 9v adapters, - on center and + on shield) as was not labeled anywhere I could find.