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DIY portable oscilloscope with STM32F407 and 3.5-inch TFT screen, cost under 200 yuan, supports 1MSa/s sampling rate, trigger function, waveform display.
Introduction. When I first got my oscilloscope, I thought as long as I could see the waveform, everything was fine. Until one day I was debugging a strange SPI communication issue - the waveform 'looked normal' but the device just wouldn't work. Later, a senior engineer told me: 'You're using the oscilloscope as a multimeter!' Today we're going to talk about advanced oscilloscope techniques. Not teaching you how to turn it on and see waveforms, but how to make the oscilloscope help you 'read' signals. After mastering these techniques, you'll find that the same equipment can reveal completely different amounts of information. What do you need to prepare? Items...