This is a simple oscilloscope built using an STC8A8K microcontroller. It requires only a minimal number of components and is easy to assemble. The device supports basic waveform measurements. This kit enables users to build a fundamental oscilloscope model based on straightforward principles and minimal hardware. The firmware code is clear and well-structured, making it suitable for electronics enthusiasts interested in learning and experimentation. Product Name: Mini Microcontroller Oscilloscope Kit Operating Voltage: 4–5 V Microcontroller: STC8A8K64S4A12 Display: 0.96-inch OLED screen, 128 × 64 resolution Channels: 1 Time Base Settings: 500 ms, 200 ms, 100 ms, 50 ms, 20 ms, 10 ms, 5 ms, 2 ms, 1 ms, 500 µs, 200 µs, 100 µs (100 µs available only in Auto Trigger mode) Voltage Range: 0–30 V Sampling Rate: 10 kHz at 100 µs/div Trigger Level: Adjustable trigger voltage level Trigger Slope: Rising edge (↑), Falling edge (↓) Trigger Modes: Auto (A), Normal (N), Single (S) Note: Slight variations in appearance may occur between production batches; this does not affect functionality. Color: Blue Material: PCB + electronic components PCB Dimensions: 57 × 34 mm Package Includes: 1 × Mini DOS LCD Oscilloscope DIY Kit Note: The actual product color may vary slightly due to lighting conditions and display settings. Dimensional tolerance: ±1–3 cm.