Licky's Column

What problems will PCB encounter during the mounting process？

by Licky Li

What problems will PCB encounter during the mounting process？

Here are the common problems encountered during PCB (Printed Circuit Board) mounting, along with their causes and solutions: 1. Solder Joint Issues...
Posted in #soldering, solder mask

Rf transceiver remote control circuit

by Licky Li

Rf transceiver remote control circuit

1. Basic Working Principle Transmission End The user operates the remote - control buttons. Each button press corresponds to a specific digital...

STM32 vs STC32

by Licky Li

STM32 vs STC32

STM32 vs STC32 Here's a comparison between STM32 and STC32 microcontrollers: 1. Manufacturer STM32: Developed by STMicroelectronics, a global ...

Types of Transistor

by Licky Li

Types of Transistor

Bipolar Junction Transistor (BJT) Structure: It consists of three regions - emitter, base, and collector. There are two types of BJTs:...
Posted in Components Sourcing

How does a thyristor work?

by Licky Li

How does a thyristor work?

A thyristor is a four-layer semiconductor device with alternating p-type and n-type materials, usually having three electrodes: an anode, a cathode...

Electromagnetic interference phenomena inside the circuit

by Licky Li

Electromagnetic interference phenomena inside the circuit

Electromagnetic Interference (EMI) Phenomena Inside the Circuit Electromagnetic interference within a circuit refers to the unwanted electromagnet...

Two STM32 micro-controllers are exchanging data witlessly over LoRa using E22900T22D module that is interfaced over UART.

by Licky Li

Two STM32 micro-controllers are exchanging data witlessly over LoRa using E22900T22D module that is interfaced over UART.

1. Components Involved STM32 Micro-controllers:STM32 microcontrollers are a popular family of microcontrollers developed by STMicroelectronics....

How to perform fly-wire repair?

by Licky Li

How to perform fly-wire repair?

Tools and Materials Needed Soldering Iron: A fine - tip soldering iron with adjustable temperature settings is ideal. Solder: Use a high - qua...

Simple H Bridge Motor Driver Circuit using MOSFET

by Licky Li

Simple H Bridge Motor Driver Circuit using MOSFET

An H bridge motor driver circuit is a fundamental component used to control the speed and direction of a DC motor. When using MOSFETs (Metal - Oxid...

How to make an Arduino laser safety alarm system?

by Licky Li

How to make an Arduino laser safety alarm system?

Here's a step - by-step guide to making an Arduino - based laser safety alarm system: 1. Components Needed Arduino Board: Such as Arduino Uno. ...
Posted in Arduino project, Diy Project

160w Amplifier with MP3 module

by Licky Li

160w Amplifier with MP3 module

160W Amplifier with MP3 Module   A 160W amplifier with an MP3 module combines audio amplification capabilities with a built-in MP3 playback functi...

Isolated H-Bridge DC Motor Driver Circuit

by Licky Li

Isolated H-Bridge DC Motor Driver Circuit

Introduction to Isolated H - Bridge DC Motor Driver Circuit An isolated H - bridge DC motor driver circuit is a key component for controlling th...