Yesterday, I surfed in the websites and found a simple and inexpensive circuit kit, called Digital Oscilloscope Kit, which is suitable for DIY enthusiasts. If you are interested in what I mentioned, then you should follow the words I write next.
On the left side is the unassembled one while the right side is the completing one. The PCB size is 117*76mm and the screen size is 52*40mm, supply voltage is DC 9V.
This kits use ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display can be used as ARM test development board. With this automatic, regular and one-shot mode, easy to capture the moment waveform. And under the negative delay, you can observe the previous trigger waveform. What’ s more, it with HOLD function that you can freeze at any time waveform display.
Except for that, the trigger level position and vertical displacement are adjustable, but you should follow the instructions then operate. Moreover, with this available source, the capable people can be secondary development on the basis of the suite, such as, it can be changed into Millivoltmeter, data loggers and so on.
All in all, if you are an enthusiast in DIY circuit kit or interested in electronic learning, Digital Oscilloscope Kit fits you very much. Moreover, it costs in low price that you are benefit in buying it.