Licky's Column

HC-SR04 Ultrasonic Sensor Pinout in detail

by Licky Li

HC-SR04 Ultrasonic Sensor Pinout in detail

The HC - SR04 ultrasonic sensor has four pins. Here is a detailed description of each pin: VCC Pin Function: This pin is the power supply pin ...

Flying Probe test

by Licky Li

Flying Probe test

Introduction to PCB Flying - Needle Testing The PCB flying - needle test is a crucial inspection method in the printed circuit board (PCB) manuf...

How to make a four-wheel drive?

by Licky Li

How to make a four-wheel drive?

Here's a general guide on how to make a simple four - wheel - drive (4WD) vehicle: 1. Design and Planning Determine the Purpose: Decide whether...

Serial port RS232 RS485 the most essential difference

by Licky Li

Serial port RS232 RS485 the most essential difference

RS - 232 and RS - 485 are both serial communication standards, and their most essential differences are as follows: 1. Electrical C...

What's the cracking process of chip decryption?

by Licky Li

What's the cracking process of chip decryption?

Chip Information Collection Determine the Chip Model This is the fundamental step of chip decryption. The specific model of the chip is determ...

USB Type A

by Licky Li

USB Type A

USB Type A is one of the most common types of Universal Serial Bus (USB) connectors. Here are the details: Physical Appearance It is a rectangula...

A strain gauge made entirely on a PCB

by Licky Li

A strain gauge made entirely on a PCB

A strain gauge made entirely on a Printed Circuit Board (PCB) is an innovative and practical device. Here's a detailed look at it: Structure and Fa...

Converting 4-20 mA Receiver Circuit Current to Voltage Using a Shunt Resistor

by Licky Li

Converting 4-20 mA Receiver Circuit Current to Voltage Using a Shunt Resistor

Key Takeaways Most industrial electronic process instruments utilize the 4-20 mA current loop bus. The receiver circuit is designed to measure or ...

Comparing SMD Capacitors vs. Electrolytic Capacitors

by Licky Li

Comparing SMD Capacitors vs. Electrolytic Capacitors

Key Takeaways An overview of capacitor form factors. SMD capacitor characteristics and advantages. The advantages of electrolytic capacitors ...
Posted in Components Sourcing

Mixed Signal PCB Design Guidelines for Circuit Board Layout

by Licky Li

Mixed Signal PCB Design Guidelines for Circuit Board Layout

Placing components in a mixed signal design. Mixed signal PCB design requirements for power delivery networks. Routing traces on a mixed sign...
Posted in PCB design, PCB layout

Using Ferrite Rings as Signal Attenuators

by Licky Li

Using Ferrite Rings as Signal Attenuators

Ferrite rings are shields made of magnetic material for attenuating high-frequency signals from cables and circuits. The simplest ferrite ring ...
Posted in cable

Which PLM Tools Should You Use for PCB Design?

by Licky Li

Which PLM Tools Should You Use for PCB Design?

Product lifecycle management (PLM) involves comprehensive management of a product’s journey from concept to market. PLM tools help companies tr...
Posted in PCB design