This is a simple oscilloscope made with an STC8A8K microcontroller. It only requires a small amount of components and is easy to assemble. The function can cover simple measurements. This kit to build a basic oscilloscope model with the simplest possible principles and as little hardware as possible. code is easy to understand, and it is also very suitable for interested electronic enthusiasts to learn and research while using the product. Product name:Mini- microcontroller oscilloscope kit Working voltage:4-5V Single chip computer:STC8A8K64S4A12 Display:0.96 inch OLED display screen -7P, 128x64 resolution Number of channels:single channel Sec/:500ms, 200ms, 100ms, 50ms, 20ms, 10ms, 5ms, 2ms, 1ms, 500us, 200us, 100us (100us only available in automatic trigger mode) Voltage range:0-30V Sampling level:10kHz@100us / Trigger level:Trigger voltage level Trigger slope:↑ - rising edge, ↓ - falling edge trigger Trigger mode:A-automatic mode, N-normal mode, S-single mode. Note:Due to different production batches, the appearance is different, which does not affect the use. Colour:Blue Material:PCB+electronic components Size:PCB size:57x34mm Package Contents: 2 x Mini DOS LCD Oscilloscope DIY Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.