Reliable STM32 USB CDC Connections on Android
June 22, 2026
Learn how STM32 USB CDC communication works on Android, including OTG host mode, app permissions, endpoint handling, firmware checks, and debug workflow.
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LM2596 DC-DC Buck Converter Schematic Diagram Explained
June 22, 2026
Learn how an LM2596 buck converter schematic works, including the regulator, catch diode, inductor, capacitors, feedback network, and PCB layout risks.
Capacitor Symbols for Polarized, Non-Polarized, and Variable Parts
June 22, 2026
Learn how to read capacitor schematic symbols, including non-polarized, polarized, variable, and specialty capacitor notation used in real circuit diagrams.
PCB on PCB: What It Means and When to Use It
June 9, 2026
PCB on PCB means one printed circuit board is mounted, stacked, or connected to another. This guide explains board-to-board connection methods, design rules, signal and power concerns, assembly risks, and when stacked PCB design makes sense.
What Is a RAMP PCB? A Beginner Guide to RAMPS Boards
June 8, 2026
A RAMP PCB usually refers to a RAMPS-style controller board used in RepRap and DIY 3D printers. This guide explains its parts, uses, wiring role, common problems, buying checks, and inspection tips for beginners.
What Microprocessor Is on the Uno Rev3?
June 6, 2026
The Arduino Uno Rev3 uses the ATmega328P as its main microcontroller. This guide also explains the ATmega16U2 USB-to-serial chip and why beginners often mix up the two.
How to Create a New PCB in Altium from a Schematic
June 5, 2026
Learn how to create a new PCB in Altium from a schematic step by step. This beginner-friendly guide covers project setup, PCB document creation, ECO review, footprint checks, component placement, design rules, routing, common errors, and final manufacturing checks.
China PCB Assembly Companies List: 20 Real PCBA Suppliers Worth Knowing
April 30, 2026
Looking for reliable PCBA partners? This comprehensive guide lists 20 real China PCB assembly companies, from rapid prototyping platforms like JLCPCB and PCBWay to full-scale EMS providers like USI and Kaifa. Learn which supplier best fits your project’s scale, technical complexity, and supply chain needs.
The Basics of Low Noise Amplifiers
March 4, 2026
A low noise amplifier (LNA) is a type of electronic amplifier used to amplify signals with very low noise. It is an essential component used in a wide range of
Redistribution Layer (RDL) Technology for ICs Package
February 28, 2026
In recent years, the redistribution layer (RDL) technology has gained significant traction. It’s a revolutionary packaging solution that has transformed the way we package ICs. In this article, we’ll explore
An Introduction to Analog and Digital Signals
February 26, 2026
When you tune the radio in your car or home, you are listening to different types of signals. You may not think about it much, but both analog and digital
Apply DMA2D Function with STM32H563 Nucleo Board
February 24, 2026
This article aims to introduce the application of DMA2D mode through the STM32H563 development board. The so-called DMA 2D mode means that the DMA can dynamically adjust the addressing mode