Upgrade DIY Mini DSO to a Real Oscilloscope with Awesome Features

Last time I shared how to make a Mini DSO with MCU. To know how to built it step by step, please refer to my previous video: Since many people are interested in this project, I spent some time upgrading it overall. After upgrading, the Mini DSO is more powerful. Since all operations are controlled by a single Encoder, it seems a little complicated. In this video, I will show you all functions and how to operate in detail. Instructable for new version: Source code and circuit on GitHub: Specification: MCU: STC8A8K64S4A12 Display: 0.96" OLED with 128x64 resolution Controller: One EC11 Encoder Input: Single Channel Sec/div: 500ms, 200ms, 100ms, 50ms, 20ms, 10ms, 5ms, 2ms, 1ms, 500us, 200us, 100us(100us only available in Auto Trigger Mode) Voltage Range: 0-30V Sampling Rating: 250kHz @100us/div There are a little changes in circuit and full update with code. New features: 1. Show frequency of waveform 2. Customize trigger level 3. Auto, Normal and Single Trigger Mode 4. Scroll waveform along horizontal or vertical 5. Adjust OLED brightness in settings I still plan to upgrade this project. Since many people tend to use STM32, I decide to transfer this project to it. I will share when it is done. Hope you like it. Please subscribe and support me.