Licky's Column

The Basic of RF & Microwave Filters

by Licky Li

The Basic of RF & Microwave Filters

RF filters are a key part of RF design as the filters enable the required signals to be selected and unwanted ones removed.   Microwave Filters ...

Choosing the Right RF Transceiver IC

by Licky Li

Choosing the Right RF Transceiver IC

Learn about integrated circuits that can help you to design customized RF communication systems. Learn about integrated circuits that can hel...

What Is RF Integrated Circuit Design?

by Licky Li

What Is RF Integrated Circuit Design?

RFIC Design Considerations RF IC design, much like niche areas of analog IC design, is often a custom process that is aided by one, or often, many ...

How to Control a Robot Arm with ROS and Arduino ?

by Licky Li

How to Control a Robot Arm with ROS and Arduino ?

Designing the Robotic Arm I built a simple 5-DOF robot arm. The robot only has revolute joints powered by SG90 low torque and inexpensive hobby ser...

How to Use GPIO Pins on Jetson Nano Developer Kit ?

by Licky Li

How to Use GPIO Pins on Jetson Nano Developer Kit ?

GPIO Support on Jetson Nano Developer Kit The Jetson Nano Developer Kit has the j41 expansion header with pins similar to the Rasberry Pi. The pin...

PCBs Layout Guidelines for RF & Mixed-Signal

by Licky Li

PCBs Layout Guidelines for RF & Mixed-Signal

RF Transmission Lines Many of Analog Devices' RF components require controlled impedance transmission lines that will transport RF power to (or fr...

How to connect and program push buttons on the arduino?

by Licky Li

How to connect and program push buttons on the arduino?

INTRODUCTION TO PUSH BUTTONS Push buttons are available in a variety of different formats: The push button we will use in this article is also kno...

An Overview of Layer Stack Management in PCB Design

by Licky Li

An Overview of Layer Stack Management in PCB Design

When it comes to designing complex high-density PCBs, layer planning is important for different types of applications. Poor PCB layer stackup manag...

How 433MHz RF Tx-Rx Modules Work & Interface with Arduino ?

by Licky Li

How 433MHz RF Tx-Rx Modules Work & Interface with Arduino ?

The Transmitter This tiny module serves as the transmitter. It is as simple as it appears. At the core of the module is a SAW resonator tuned to ...

How to Connect Grounds in an Isolated Power Supply PCB Layout

by Licky Li

How to Connect Grounds in an Isolated Power Supply PCB Layout

Most designers that work with a bench-top power supply are likely using an isolated regulated (switching) PSU that plugs into the wall. Everything ...

How to Start an FPGA PCB Layout For Your Embedded System？

by Licky Li

How to Start an FPGA PCB Layout For Your Embedded System？

FPGAs come in quad or BGA packages that can be difficult to floorplan, especially with the high number of I/Os often implemented in these component...

Silkscreen Design On PCB

by Licky Li

Silkscreen Design On PCB

Silkscreen Design Considerations General Requirements The width of the silkscreen line should be greater than 5mil. Designers must ensure that th...