Licky's Column

Making a mini retro small TV with ESP32

by Licky Li

Making a mini retro small TV with ESP32

Construction ideas CRT attributes This retro TV has a cathode ray tube (CRT) display. It is a large vacuum glass tube that emits an electron be...

How to solve the problem that the reading fluctuation is very large when the 51 single-chip microcomputer uses ADC0808 in the physical object?

by Licky Li

How to solve the problem that the reading fluctuation is very large when the 51 single-chip microcomputer uses ADC0808 in the physical object?

When using ADC0808 in a 51 single-chip microcomputer to read analog signals, if it is found that the reading fluctuation is very large, the followi...

Precautions for connections between middle layers in multi-layer stack design

by Licky Li

Precautions for connections between middle layers in multi-layer stack design

When making inter-layer connections in multi-layer stacking design, the following matters need to be noted: 1.Via design: Ensure that the size, qua...

How to avoid the impedance mutation problem of interlayer connection when designing multilayer stack?

by Licky Li

How to avoid the impedance mutation problem of interlayer connection when designing multilayer stack?

The following are some methods to avoid the problem of impedance mutation of inter-layer connections when designing multi-layer stacking: 1.Accurat...

Impacts of Inter-Layer Impedance Mutation on Signal Transmission in Multi-Layer Stack Design

by Licky Li

Impacts of Inter-Layer Impedance Mutation on Signal Transmission in Multi-Layer Stack Design

When there is an impedance mutation of the inter-layer connection in the design of a multi-layer stack, it will have the following series of imp...

What are the advantages and disadvantages of multi-layer stacking?

by Licky Li

What are the advantages and disadvantages of multi-layer stacking?

The advantages of multi-layer stacking include: Higher circuit density, allowing for more components and circuits to be integrated. Better signal...

How to Design a Multilayer Stack Plan?

by Licky Li

How to Design a Multilayer Stack Plan?

Here are the steps to plan a multilayer stack: Determine Requirements: Understand the electrical, signal integrity, power distribution, and ther...

7 types of ordinarily used electronic test instruments

by Licky Li

7 types of ordinarily used electronic test instruments

Here are 7 types of commonly used electronic test equipment: Oscilloscope: Used to observe and analyze electrical waveforms. Multimeter: Measur...

STM32 ESC PCB Design

by Licky Li

STM32 ESC PCB Design

The following are the key steps in STM32 ESC (Electronic Speed Controller) PCB design: Component Selection: Choose the appropriate STM32 microcon...

Build a 3-Phase Brushless (BLDC) Motor Driver Circuit

by Licky Li

Build a 3-Phase Brushless (BLDC) Motor Driver Circuit

Building a 3-phase brushless (BLDC) motor driver circuit typically involves the following steps: Power Supply Design: Choose an appropriate power...

How to apply analog circuits in embedded design?

by Licky Li

How to apply analog circuits in embedded design?

In embedded design, analog circuits can be applied in the following several ways: 1.Power management: Design appropriate power circuits, such as vo...

How to learn embedded system design?

by Licky Li

How to learn embedded system design?

Here are some ways to learn embedded system design: Study fundamental theories: Learn electronics, microcontrollers, programming languages (such...