A digital oscilloscope Based on MCU

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Revision as of 07:38, 29 April 2022 by Diandian (talk | contribs) (Created page with "== Introduction == We design a digital oscilloscope with STC8A8K64S4A12 chip as the control core, which mainly consists of two modules: hardware circuit and software program. The hardware module mainly includes OLED screen, voltage sampling circuit, clock system, power supply and management module and so on. The software module mainly includes A/D sampling, OLED display, interrupt timing and some necessary data processing. its measurable bandwidth is 0-3000Hz, the measur...")
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Introduction

We design a digital oscilloscope with STC8A8K64S4A12 chip as the control core, which mainly consists of two modules: hardware circuit and software program. The hardware module mainly includes OLED screen, voltage sampling circuit, clock system, power supply and management module and so on. The software module mainly includes A/D sampling, OLED display, interrupt timing and some necessary data processing. its measurable bandwidth is 0-3000Hz, the measured range is 0-30V. After many tests and comparisons, the design achieves the amplification and reduction of waveform and the measurement of different frequency waveform in the experimental process, so as to achieve the desired goal.

Methodology

Experimental setup

Step 1:Preparation

Material List:

    • MCU: STC8A8K64S4A12 x 1
    • Display: SSD OLED(with 7-Pin SPI Interface) x 1
    • Resistor:1W 10k x 1, 1/4W 2k x 2, 1/4W 10k x 1
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