Licky's Column

Why Learn Arduino and coding?

by Licky Li May 05, 2025

For Hobbyists Bring Ideas to Life: It allows hobbyists to turn their creative ideas into tangible projects. For example, you can build a custom -...

13 ways to connect cables!

by Licky Li May 05, 2025

Twisting and Soldering: This is often used for electrical wires. Strip the insulation of the wires at the ends, twist the bare copper strands to...

Posted in cable, soldering

Logic Gate Symbol

by Licky Li April 28, 2025

Logic gates are the fundamental building blocks of digital circuits. They perform basic logical operations on one or more binary inputs and produce...

FPGA VS ASIC

by Licky Li April 24, 2025

FPGA (Field - Programmable Gate Array) and ASIC (Application - Specific Integrated Circuit) are two important technologies in the field of digital ...

TL431 IC Pinout

by Licky Li April 07, 2025

The TL431 is a popular adjustable precision shunt regulator, and I assume you might mean it instead of TL4311C as there isn't common knowledge abou...

PNP Switching Circuits

by Licky Li April 07, 2025

PNP (Positive - Negative - Positive) switching circuits are an important part of electronic circuits. Here is a detailed introduction to them: Work...

How to Locate the Identification Number on a PCB: A Guide to Circuit Board Serial Number Lookup

by Licky Li April 02, 2025

Here are the common methods to locate the identification number on a PCB: Check the silk - screen layer3: The serial number is often printed on ...

Posted in Components Sourcing

Types of Arduino Seniors

by Licky Li March 31, 2025

It seems you might have some confusion. You probably mean "Types of Arduino Sensors". Here are some common types of Arduino sensors: Environment...

Posted in #PCBA, Components Sourcing, module

Why is NPN preferred over PNP？

by Licky Li March 31, 2025

NPN (Negative - Positive - Negative) transistors are often preferred over PNP (Positive - Negative - Positive) transistors in many applications for...

Posted in Components Sourcing