Licky's Column

LC Oscillator

by Licky Li

LC Oscillator

An LC oscillator is an electronic circuit that generates a periodic signal at a specific frequency. The basic components of an LC oscillator are a...

A small handheld game console designed using the TTGO-ESP32 development board

by Licky Li

A small handheld game console designed using the TTGO-ESP32 development board

A small handheld game console designed using the TTGO-ESP32 development board is a creative and exciting project. The TTGO-ESP32 development board...

The Hierarchy of audio op amps

by Licky Li

The Hierarchy of audio op amps

The hierarchy of audio op amps can be understood from several aspects: Performance Levels: Entry-level: These op amps offer basic audio amplif...

What is the basic principle of the operational amplifier analog circuit?

by Licky Li

What is the basic principle of the operational amplifier analog circuit?

The basic principle of an operational amplifier analog circuit is as follows: 1. High Gain AmplifierThe operational amplifier is a high-gain dif...

Arduino based automatic water tap usingultra sonic sensor andmicro servo

by Licky Li

Arduino based automatic water tap usingultra sonic sensor andmicro servo

An Arduino-based automatic water tap using an ultrasonic sensor and a micro servo is an innovative and convenient project. The ultrasonic sensor i...

Object Detector

by Licky Li

Object Detector

An Object Detector is a technology or system designed to identify and localize objects within an image or video. Object detectors u...

The difference between half bridge and full bridge

by Licky Li

The difference between half bridge and full bridge

The main differences between a half bridge and a full bridge circuit are as follows: Component Configuration: Half Bridge: Consists of two powe...

Types of Connectors

by Licky Li

Types of Connectors

Connectors come in a wide variety of types, each designed for specific purposes and applications. Here are some common ones: USB Connectors: As ...

Arduino Parking LotWiring Diagram

by Licky Li

Arduino Parking LotWiring Diagram

Here is a basic wiring diagram for an Arduino-based parking lot sensor system: Components: Arduino board (such as Arduino Uno). Ultrasonic sens...

Millis() VS. Delay() - what's the difference

by Licky Li

Millis() VS. Delay() - what's the difference

In programming, millis() and delay() have the following differences: millis(): millis() is a function that returns the number of milliseconds ...

TL431 1C Pinout

by Licky Li

TL431 1C Pinout

TL431 is a three-terminal adjustable shunt regulator. Common package forms include TO-92 and SOT-23, etc. Its three pins are: Cathode, Anode, and R...

35W Hi Fi Power amplifier circuit Using TDA2050

by Licky Li

35W Hi Fi Power amplifier circuit Using TDA2050

Here is a 35W Hi-Fi power amplifier circuit using the TDA2050: The TDA2050 is a popular audio power amplifier IC known for its good performance an...