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Your cart is empty.DSO138 was designed as a training oscilloscope kit. It contains only the basical oscilloscope functions with no fancy features. Simplicity in structure and easiness in assembly/operation are among the main targets of the design. For these purpose DSO138 uses mostly through-hole parts. The heart of DSO138 is a Cortex-M3 ARM processor (STM32F103C8) from ST. It uses 2.4-inch TFT LCD (320 X 240 dotmatrix, 262K colors) as its display element and displays nice and clear waveforms. Detailed assembly instructions are provided in combination with troubleshooting guide and schematc. Source codes are also available to allow user to add their own features. DSO138 kits are sold in two configurations. One is with all SMD parts pre-soldered (PN: 13803K, replacing 13801K). The other is with only the main IC (the MCU) pre-soldered (PN: 13804K, replacing 13802K). The latter serves also as a SMD soldering training kit. For both configurations the MCU has been pre-programmed and no re-programming required. 13803K and 13804K are newly released improved models with following upgradings: Significantly lowered noises. Comparing: [NEW] vs [OLD] in measuring the built-in test signal. Waveform can be saved to and recalled from non-volatile memory. Enhencement in Test Mode with auto short-circuit detection capability. Supports two types of TFT controllers (ILI9341 and ILI9325/9328). DSO138 is partially open-sourced. This opens the possibility for users to add different features or develop new applications on the hardware. Major features of DSO138: Analog bandwidth: 0 - 200KHz Sampling rate: 1Msps max Sensitivity: 10mV/Div - 5V/Div Sensitivity error:
Alex
Reviewed in the United States on November 16, 2023
After checking all my resistors, all my capacitors, and all of my soldering this thing will not get past the white screen of death. This seems to be a common problem with some of the boards that get sold so buyer beware. Even people on the official forums can't get it past the white screen. Either the CPU is not programmed right, or there is an invisible short next to the reset button.Either way after 5 days of trying to fix this I give up.
RPol
Reviewed in the United States on November 23, 2018
This is a pretty decent kit.Let me break it down:1) The documentation was fairly decent. It actually came with step by step printed instructions.2) The PC board was good quality.3) The resistors are HARD to identify!!! This is the #1 reason this is not a 5 star review. You need to use a ohm meter.4) The thru hole barrels are a bit too small, which makes it harder to solder. Had a hard time with some of the components even though I used a high quality Weller WES51 iron. This is the #2 reason this is not a 5 star review.5) The oscilloscope worked the first time, which is important when building a kit.6) I was able to finish it is just a few hours.7) It’s not a full blown scope, but for 25 bucks??!! It is good for quick measurements, which is very common for my type of projects. For the price, you’d be hard pressed to get a soldering kit that has so much functionality and usefulness (for example the lame coin toss kit).
Ron G
Reviewed in the United States on August 17, 2017
I ordered the JYE DSO 138 DIY KIT, but mine came fully assembled. I was kind of looking forward to the build, but I don't really need another project. I'm happy to have a $20 oscilloscope. It seems to work, so far as I can tell.
Ray
Reviewed in the United States on March 19, 2017
Quality kit, but wish I didn't have to spend 2 hours sorting out the resistors under a microscope and multi-meter. Kit would already be soldered and together in the amount of time it takes to sort everything out (especially if you're like 99% of the population that doesn't care to memorize resistor color codes).The amount of time it takes to sort every component that was haphazardly tossed into a single bag is seriously infuriating when you are planning on taking your mind off work for a kit taking 1 afternoon, but turns into 2. Tip from a satisfied (product wise), but annoyed customer: Spend a extra dollar on your staff and tape up all the duplicate parts in the kit so its easier to sort. We're buying this and paying you for an DIY project KIT because we don't have time to source and figure out all the details... not paying for a scavenger hunt before we even turn the iron on.Word of advice.
Josh
Reviewed in the United States on August 29, 2016
I ordered this oscilloscope kit, and have already soldered it together! Be aware that you need a multimeter to measure each of the resistors. While the resistors are color coded, it is difficult to know which way to read the colors. So, a digital multimeter is a must. Be sure and prepare every item so you get all the right parts at the right spots on the board!I assembled this, and it worked the first time. Be sure and read the directions a few times, and have fun! The solder joints are pretty 'big' but it does take a little skill to ensure you get proper connections. If you have soldered on boards before, this kit is really straightforward.As a sidenote, be sure that you watch how you will attach the screen. As the screen is attached with three headers, it is important to get them as close as possible so the screen fits well. When i soldered mine, I ended up being a little off, so I ended up heating up the solder on the connectors to give it a much better fit.The instructions were in color and very easy to follow. Be sure to sort all the parts before you start!I am happy with this, and the few simple tests, shows it will work well for what I need it to do!
Item Purchaser
Reviewed in the United States on March 26, 2016
I was pleasantly surprised that this kit had all of the parts, went together and started up on the first try ! I bought the kit to use with some Arduino projects that would not create any signals with frequencies above 100 kHz or more than 10 V pp. The first thing I looked at was a 0 to +500 mV triamgle running at about 3 Hz. The unit would capture a very useful free running waveform image at this really low frequency. Very useful for the sorts of projects I will use it with, and great functionality for the low price. You need a multimeter to build this because you must check the resistor values before you place them in the circuit board. I also used a board holder I purchased from Amazon. You will be glad to have a magnifying glass at hand also. The directions, photos and test instructions are pretty good. The little thing really does work !
Customer
Reviewed in the United States on October 30, 2016
The DSO138 Kit I purchased is an original kit manufactured by JYE. There are several counterfeit DSO138 kits being sold out there so check with the manufacturers web site to find retailers on Amazon that are selling the OEM kit(s). The JYE forum indicates a lot of problems with counterfeit kits, and for the price difference it's not worth the headaches they have caused DIY'ers.I verified with the retailer that the kit I was purchasing was the one with all the SMD parts pre-installed on the PCB (PN: 13803K). Even with all the SMD parts pre-installed this was a fun and simple kit to assemble. You will definitely need a low wattage (~ 25W), SMALL TIP, soldering iron for most of the assembly (plus a higher wattage iron just for the BNC and power connectors). The small tip iron (and fine size solder, e.g. .032") is essential since the spacing between some of the solder points is very small (especially the slide switches where I ended up soldering a short to ground). BTW, the JYE Forum was VERY helpful in assisting me in troubleshooting the one problem that resulted from the shorted SW. They nailed the problem on the initial diagnosis, and I got lucky finding the short the 1st place I looked based on their input.I separately purchased a clear acrylic case for the DSO138 which makes the whole kit a conversation starter when left out in the open. Note of caution on cases. If you purchase one buy some extra M3 nuts (or M3 nylon lock nuts) to hold the main PCB at a working distance from the "floating" push button stubs.Enjoy, I did!
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