Licky's Column

RF filters

by Licky Li October 31, 2024

RF (Radio Frequency) filters are essential components in electronic circuits designed to selectively pass or block specific frequenc...

How to make homemade drip irrigation system gardenideas dripirrigation irrigationmethod ?

by Licky Li October 31, 2024

To make a homemade drip irrigation system for your garden, follow these steps: Materials Gathering: Plastic tubing (such as 1/2-inch polyethyle...

The waves in the transition circle form a continuum

by Licky Li October 31, 2024

When it is said that "The waves in the transition circle form a continuum", it implies that the waves within this particular circle exhibit a seaml...

Different filters of the bridge rectifier

by Licky Li October 31, 2024

A bridge rectifier is a circuit that converts an alternating current (AC) input into a direct current (DC) output. Different filters can be used wi...

Loudspeaker and Microphone Circuit

by Licky Li October 31, 2024

A loudspeaker and microphone circuit typically involves several components and connections to enable the conversion of electrical signals to sound ...

AM Radio Receiver

by Licky Li October 31, 2024

An AM (Amplitude Modulation) radio receiver is a device that captures and processes AM radio signals to reproduce the audio content ...

Routing guidelines for RF PCBs

by Licky Li October 31, 2024

In the last few years, PCB design has become an increasingly challenging task, mainly due, in most cases, to the combined presence of digital, mixe...

Posted in RF pcb

Fairchild uA741 opamp from 1969. For best viewing, click on image

by Licky Li October 31, 2024

Interfacing PN532 with Arduino – Here’s All You Need to Know

by Licky Li October 31, 2024

About interfacing PN532 with arduino, PN532 is an NFC breakout board found in almost all devices using near-field communication. And as NFC is an e...

Posted in #Arduino, Aluminum Printed Circuit Board, Arduino project

PIC32 vs. STM32: Everything You Need To Know

by Licky Li October 31, 2024

The PIC and STM microcontroller families have dominated the MCU market for a while. They are high quality, with a wide range of options, excellent ...

Posted in STM32

What PCB Antipad Size Should You Use?

by Licky Li October 31, 2024

PCB design software will do something interesting once you place a via to make a route through a plane layer. The routing engine will automaticall...

Posted in Antipad, PCB design

How inductors, resistors, and wires protect the circuit

by Licky Li October 31, 2024

Inductors, resistors, and wires are not protective devices in themselves but can play a role in combining several different protective devices to f...

Posted in Components Sourcing