Kuman DSO138 2.4" TFT Digital Oscilloscope Kit DIY parts 1Msps +Probe

This oscilloscope has plenty of good quality components and so is fun to build. Mine arrived with the surface mounted chips pre-installed and that is what I wanted. I already built the Jyetech DSC150 scope and although the DSO138 is an older model I thought I'd build this too as it looked interesting from a soldering perspective with lots of through hole components. Generally the build was OK, resistors are difficult to identify using the bands so a multimeter is essential but otherwise component identification is simple enough. Instructions are pretty good and the components are easily identified on the board. Although the project was fun to build I did have a few problems getting the solder to adhere to some of the PCB pads. For some reason the solder would not want to flow onto the pad which I don't' normally have issues with. I did try cleaning the board with IPA but that didn't help. Perhaps a flux pen might have been a good investment and may have helped with this build. Once built the scope worked first time. It's an older model than the DSO150 so does not perform quite so good but overall its a fun project and good for displaying different waveforms. I checked the frequencies against a waveform generator and accuracy of the scope is good, spot on in fact. Calibration is pretty simple and described in the instructions. The instructions also have a trouble shooting section which is useful where is outlines different voltages across the board. I didn't need to do any trouble shooting but decided to check the output voltages on my board just for the fun of it. Overall a good product but perhaps invest in a flux pen too. These Jyetech scope projects are basic instruments but enjoyable to build. Might try the mini version next. My DSO138 didn't come with a case so I ordered this separately as it'll protect it and make it more useable.

I liked it could have been a touch more detailed on the resistors you definitely need a meter, but overall worked first time and worked well.

Bought this last weekend as my first ever scope and had all parts counted and measured, soldered and tested within about 4 hours (I've never soldered before) Soldering the 40 pin header to the LCD board was a little nerve wracking but got there in the end. On test this thing performs (for me) perfectly. I only use it to measure pwm out on arduino boards and other hobbyists stuff so can't comment on it's absolute accuracy but in my opinion 20 quid for a scope is a steal. Sure it's not got the features of a 350 quid bench scope but hey "good enough for the girls I go out with".Instructions were clear and had plenty of warnings where you could select a component and solder it into the wrong place (looking at you regulators and transistors). All in all I'm very pleased with it

Had a short on the 40 pin header. Had to chuck it in the bin. Time wasted.

I was nervous about ordering one of these as I was aware of the clones on the market. This first one I brought from Amazon (the seller not fba) and turned out to be a clone, I decided to build it to see if it was usable - it wasn't, it was a useless piece of junk. So I returned that one and ordered a second from NooElec, who are listed on JYETech's list of suppliers and indeed the NooElec supplied item was the genuine article.I'm not going to go into details of the product here, if you aren't sure if it will be sorted for you then there are plenty of videos out there already, but needless to say as a home maker/hacker it covers all my needs more then sufficiently. Saves having to travel to the local makerspace each time I need to use a scope.I also want to clarify I paid full price and have no links to either JYETech or NooElec

Super little kit. About an hour to assemble, test and set up.Very clear instructions and a nicely made board make for easy construction. The component numbering is a little random in places but there aren't too many parts so not especially difficult to find them all.The input is a little noisy, even on ground coupling, on high sensitivity but I don't intend to use it on small signals.For the price this is a super little tool for simple field work. More convenient than a laptop based solution, but not lab quality.The display is scrollable so you only see one third of the stored trace, which makes it appear a little slow to respond but you just need to scroll right to see the fastest response. It can also be scrolled in 'hold' which is really handy to see events that might have left the screen if your reactions on the hold button were a little slow.I really like it.

Excellent kit. Created a useful little oscilloscope and was straightforward to do with a bit of soldering experience.

Can't get a display