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  • 09/11/2016

    Just received the DSO 150 with pre solder SMD parts. About 2 hours are needed to solder the needed parts. After doing the voltage function tests and calibration of the probe the two boards are mounted into the cover. Adding an external 9V power supply and ready to go. By the way, test voltage V4 shows up 1.5 V instead of the mentioned 1.61 V. Hope that´s ok! Just a short hint: Do not use a normal 9V battery. It will last just for a short time and you can be not sure if the DSO 150 display correct data.

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  • 17/10/2017

    I have added an USB-UART (serial) converter and have flashed an extended firmware from toshi, see http://www.jyetech.com/forum/viewtopic.php?f=19&t=1206#p4062 I have described the modification to export the waveform data and plot it in program GNUplot under Ubuntu, Mac OS and Windows, see: http://www.rudiswiki.de/wiki9/JyeTechDSO150

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  • 13/02/2020

    Ich habe es modifiziert, um mit einem Li-Ionen-Akku mit mt3608 Step-up-Konverter und tp4056 USB Li-Ionen-Ladegerät arbeiten. Jetzt kann es auch auf 9V DC ausgeben, also kann ich es verwenden, um andere Geräte mit Strom zu versorgen. Scheint ohne Problem zu funktionieren. Ich habe R30 nicht entfernt und nicht den Schalter verwendet, stattdessen habe ich einen Schalter direkt an den Ausgang der Batterie angeschlossen.

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  • 29/12/2016

    From an educational point of view, this is a good kit. This new kit is a bit more compact than the DSO138. Ultimately, it has similar limitations - this is more like a different form factor than a proper upgrade. Anyway, it has a very reasonably frequency range for its price point. I uploaded some pictures during my assembly. Many parts, such as the rotary encoder, are marked on the pcb silkscreen - this helps with the correct orientation of the components. For me, It the assembly took 2-3 hours. The hardest part was finding the correct resistor values - soldering marked SMD resistors, such as 0805s, would be easier and faster. I think the pin headers have a pin pitch of 2 mm - everything is a bit smaller in comparison to a regular protoboard, which makes soldering a bit more challenging. The current firmware seems to have a few issues. there are a few threads in the official jye tech forum (jyetech.com/forum) regarding calibration issues, I hope these will be corrected soon. quote: "We can confirm that the 0.1V test signal contains a +3.3V offset due to a bug in firmware. This will be corrected in the up coming firmware release. For the time being please use AC coupling for the adjustment of C3. We are sorry for the mistake."

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  • 07/12/2016

    I just finished building it so here're my impressions from the build procedure: The manual does *NOT* specify the direction parts should be facing towards nor can it easily be seen from the images which is quite easy to get wrong since the main board has to be soldered on two sides; I the test knob on the wrong side of the board, then II managed to get the rotary switch board assembled upside down which was a major PITA to correct and I had to cut the connector and use a new one (which I then also soldered in facing into the wrong direction). It is not clear whether the switch on the analog board should be flush with the board or be elevated. I assumed it should be elevated because otherwise I would have needed to deform the outer pins in order to push it all the way in; making the holes small enough is usually a sign that the designer wanted to have some distance between the board and the switch... In retrospective it seems that assumption was wrong. The troubleshooting tips are pretty much useless, it's almost impossible to have any of the defects listed there. The test points are easily useless, most don't say what "good" values are and what to do if they're not good, others vary with the input voltage and "good" is defined as a very wide range. The calibration is crappily explained; I figured out what C3 does by myself but it would have been nice to know what to look out for instead of trying to compare it to the barely readable images next to it. I still have no idea what C5 does, didn't seem to have any effect for me; it's also a bit annoying having to take the analog board off to make changes and then put it back on to see the effect; the variable caps should be facing to the side instead of into main board, I'm also pretty sure that could be automised...

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  • 05/12/2016

    Хороший набор. Радует наличие хорошего корпуса. Собирается легко, комплект полный, только надо быть внимательным с какой стороны что паять. Первое тестовое подключение делается только с платой, где экран и без энкодера. После надо выпаять резистор - перемычку на плате. Для своей цены вполне функциональная вещь. Кроме обычного показа сигнала есть память (долговременная). Можно записать и хранить или кому показать. Кроме этого на экран выводятся статистические данные сигнала. Не хватает щупа с делителем, но его можно докупить здесь отдельно. Нужен блок питания на 9 вольт и желательно без пульсаций. Из недостатков - очень маленькие отверстия под длинные винты корпуса. Боялся сломать пластик, пока завинчивал (очень туго шли), но все получилось хорошо.

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  • 28/06/2017

    The assembly is pretty easy and for me was trouble free of wrong parts. I think I understood correctly the calibration (it works OK for me). I did, as another user mentioned, fit a flat 950mAh LiPo with a step-up and a charging circuit with an opening to the side for a USB charging. It\'s great you should do it. Take note that because you use battery as a source to the step-up you can eliminate the input capacitor without much of a problem. And also you can cut pieces of the step-up PCB as long as you can keep the traces (the ground is common to input and output ;) and is usually the bottom layer). Trim any throu-hole lids and protect with electrical tape! Only problem is that the step-up draws some minimum current even if the unit is off, so you should remember to charge it regularly (my charging circuit protects from undervoltage thought).

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  • 07/08/2017

    отличный не дорогой конструктор. Собирать, одно удовольствие. Единственное что не понравилось, это питание от 9Вольт. Но я решил эту проблему интегрировав внутрь корпуса литиевый аккумулятор от телефона, подключив его через повышающий DC-DC преобразователь подняв напряжение до требуемых 9В а также снабдил контроллером заряда аккумулятора. И получился полностью портативный осциллограф в отличном корпусе.

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  • 18/02/2017

    A small portable scope. The soldering is a bit tedious, but by no means difficult. Seems to work fine, the little testing I've been doing so far. You probably do not want to run it off a 9 volt battery since it draws a bit too much juice, but if you have to, it works fine. Just beware that there is no room for a battery inside the box, so it must be external.

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  • 26/02/2018

    This is both fun to build kit and great little oscilloscope. Assembly is relatively straightforward and there are lot of tutorials online. Finished oscilloscope works good, and only thing you might want to improve is to get better probe: http://bit.ly/2CpPhuq

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