It visualizes the wave forms on your Smartphone using an Android application called Scoppy, it shows Square wave or Sine wave and detects the signals upto 250kHz frequency for each channel. So, Lets learn how to build it ourself with Raspberry Pi Pico and some electronic components. If you need an Oscilloscope at very very cheap price than this project is like a treasure. Taking this into consideration a developer from GitHub named fhdm-dev developed a DIY digital oscilloscope whose components are 100 times cheaper than the oscilloscopes available in the market.
But still hobbyists and makers cannot afford those oscilloscopes whose prices start from 400$ which is very high. Due to the latest technology inventions Analog ones are overtaken by Digital ones which are cheaper than analog ones and the visualizations are displayed accurately on LCD displays. There are two types of oscilloscopes Analog and Digital.
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