gloria Mar 03,2022 4349

Gesture Recognition on Wio Terminal to Recognize Rock, Paper, Scissors

Note: The content and the pictures in this article are contributed by the author--Vincent KokUsing gesture recognition with the in-built light sensor, the Wio Terminal will be able to recognize the ro...

Gesture Recognition Tutorial Programming

PCBWay Feb 28,2022 3168

Voice Recognition Robot Car

Note: The content and the pictures in this article are contributed by the author. The opinions expressed by contributors are their own and not those of PCBWay. If there is any infringement of content ...

Stem Robot

Mark Donners Feb 18,2022 6219

The Best Way for Sampling Audio With ESP32

The examples in this article were tested on an ESP32 using the Arduino IDE3 Ways of sampling audio using a microcontroller:1. Direct (Sequential)readout2. Interrupt Driven Readout3. I2S Driven Readout...

Mark Donners Feb 16,2022 5213

The four Stages of Design

The Four Stages of DesignIng. Mark Donners ‘Since new developments are the product of a creative mind, we must therefore stimulate and encourage that type of mind in every way possible’ Geo...

Arnov Arnov sharma Feb 11,2022 3811

PCB Necklace V1

PCB surface finish PCB material Electronic test SMD Adhesive arduino

Afonso Muralha May 28,2021 3298

Design considerations for a vco audio project

General descriptionDuring the past month I’ve been slowly gathering information and designing a VCO’s architecture based on the specifications stated on my last post. Here’s a reminder:InputsCV 1V/oct...

PCBWay Oct 16,2020 22511

Three Types of Switching Power Supply Snubber Circuit

1. What is a switching power supply snubber circuit?Snubber circuit is also called absorption circuit, which is an important protection circuit for power electronic devices. It is composed of inductor...

Switching Power Supply Snubber Circuit RCD LCD energy regenerative snubber circuit

Eric Dec 19,2019 6653

Impedance Matching in HDI PCB Design

Impedance matchingImpedance matching means that when source is transmitted, the load impedance must be equal to the characteristic impedance of the transmission line. At this situation, the transmissi...

HDI Impedance Matching PCB design Series termination matching Parallel terminal matching

Eric Sep 05,2019 11290

Several factors for the increased temperature of printed circuit board and its solutions

The direct factor for the temperature rise of PCB is the existence of power consumption parts and the heat generation intensity varies with the power consumption.There are two phenomena of t...

PCB heat sink cooling system thermal conductivity components heat dissipation

lesley Jul 25,2019 5815

Solution for Negative Film Deformation of PCB Technology

The reasons for the deformation of the negative film and its solution: The reason:(1) Temperature and humidity control failure(2) The exposure machine temperature rises too highSolution:(1) Norma...

Negative Film Deformation. PCB

lesley Jul 08,2019 8953

How to prevent the PCB from being bended and warped when get through the reflow furnace

Everyone knows that PCBs are easy to be bended or warped when get through the reflow furnace. So how to avoid this situation, here are some advices for you.1. Reduce the effect of temperature on PCB b...

reflow furnace PCB

lesley Jun 28,2019 10245

Thermoelectric Separation Technology of Copper Core PCB

What is the Thermoelectric Separation Substrate?The circuit part and the thermal layer part of the substrate are on different circuit layers, and the thermal layer part directly contacts the heat diss...

Thermoelectric Separation Technology，Copper Core PCB

lesley Jun 20,2019 14353

4 Main Types of Plating Methods in PCB production

There are four main types of plating methods in PCB (Printed Circuit Board) production: finger-plated plating, through-hole plating, reel linkage selective plating and brushing plating. Here'...

PCBWay Jan 25,2019 9244

Research on the Key Technology of PCB

Introduction:PCB is an important carrier of electronic components and an important circuit connecting component and has developed for a long time. According to the number of printed circuit board, PCB...

PCBWay Jan 23,2019 7347

Key Points in Manufacturing Mechanical Blind-Via

Introduction:Mechanical blind through-hole PCB means that both the blind holes and the through-hole of the plate are formed by the process of mechanical drilling. For example, the figure below is the ...

PCBWay Jan 22,2019 11424

BGA Soldering Quality Detection Techniques by X-Ray Imaging

Introduction:BGA is a typical high-density packaging technology. Its characteristics are that the chip pins are distributed under the package in the form of spherical solder joints, which can make the...

BGA

PCBWay Jan 18,2019 10016

Analysis of the Methods of PCB Interconnection

Introduction:Electronic components and electromechanical components have electrical contacts, and the electrical connection between two discrete contacts becomes an interconnection. The electronic dev...

PCBWay Jan 14,2019 4684

Halogen-Free Flexible Printed Board Material

Introduction:In recent years, due to the miniaturization and thinness of portable electronic products, the mounting space inside the machine and the mounting area of the substrate are becoming smaller...

PCBWay Jan 03,2019 12504

Suitable Temperature Curve of Lead-free Solder

Introduction:Alloy, , is the best solder in the reflowing process. Compared with the traditional solder, it has two disadvantages in terms of manufacturability as following:1) ...

PCBWay Dec 17,2018 4755

New Flexible Substrate Manufacturing Technology ---Electrodeposition Polyimide Process

Introduction:As the wiring density of flexible substrate becomes higher and higher, the circuit made by subtractive process can no longer meet the requirements of circuit elaboration. Therefore, the i...

Electrodeposition Polyimide Process