3 Tips for RF PCB Layout

Because the radio frequency (RF) circuit is a distributed parameter circuit, skin effect and coupling effect are prone to occur in the actual work of the circuit, so in the actual PCB design, it will be found that the interference radiation in the circuit is difficult to control, Such as: mutual interference between digital circuit and analog circuit, noise interference of power supply, interference caused by unreasonable ground wire, etc. Because of this, how to weigh the pros and cons in the P...

cavity routing layout pcb design RF

Write Your Own Riddles ----The Skull CTF

“Centuries ago, she was Queen of the Pirates.Now, you are holding her skull in your hands.A tiny piece of her mind remains within,barely alive, and it holds a dark secret.Awakened by a gentle touch, her eyes will glimmer,and cease shortly after. They say the eyes arewindows to the soul, and this lost soul is waitingfor you to uncover her secret and set her free.Will you take up her quest?”Do you Love Riddles?The Skull is a Capture the Flag (CTF) riddle that invites you to explore the internals o...

PCB. MCU GPIO hardware mods badge riddles hardware The Skull CTF

Program Your First FPGA With GOWIN GW1N-4

If you’re a software developer like me, you might be thrilled to see so many exciting embedded hardware platforms that we can now program easily, from Arduinos to the PADI IoT Stamp and the STM32 Blue Pill.Today we’ll look at a totally different kind of gadget that’s now within our programming reach — FPGA or Field-Programmable Gate Array. But unless you’re a hardware engineer it’s hard to understand how an FPGA works and why it’s different from microcontrollers and CPUs (even though they are al...

Internet of Things programming IoT arduino Gowin FPGA

How to make your IoT projects WhatsApp-enabled via Twilio

Although there are myriads of web and mobile applications you can implement on your electronics projects pertaining to IoT - Internet of Things - did you know that you can utilize WhatsApp, rather than usual applications for web communication, to make your electronics projects more intriguing and exciting?Oddly enough, WhatsApp Business API does not allow users to include WhatsApp features on their personal projects unless users register their personal phone numbers to the API. Nevertheless, luc...

raspberry pi arduino IR Proximity Sensor ESP8266 NodeMCU webhook Twilio WhatsApp IoT

California Publishes Q&A on New Prop 65 Warning Requirements

California to Require Hazard Warnings on Products Containing Twelve Common ChemicalsAnyone who has ever been to California is familiar with the ubiquitous Proposition 65 signs, “WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.” Applying to any product sold in the state of California, Proposition 65 traces origins to a 1986 voter initiative. Because of the overuse of the vague warning, the ubiquitous signs ulti...

Warning Requirements Prop 65

Design of BUCK Constant Current Source Circuit Based on RCC

RCC stands for Ringing choke converter, which also means oscillating-blocking power converter. As a once very popular power converter structure, with the rapid development of the integrated circuit industry, it seems to have gradually faded out of mainstream applications.Through the introduction of RCC-based BUCK constant current source circuit, this article explains the method and idea of using discrete components to achieve high precision and high efficiency constant current, and the applicati...

LED driving Constant Current BUCK RCC

DIY Your Retro-gaming Console ---- uChip Simple VGA Console (uSVC)

What is uSVC?uSVC is a simple, do-it-yourself game console that allows you to create and play retro-style 8-bit games with standard USB controllers and keyboards. In another word, it is an educational platform with a comprehensive Application Programming Interface (API) and a series of guides that will have you designing your own games in no time, all you really need is a soldering iron and some solder wire. uSVC handles multiple video modes, including 8x8-pixel tiled modes with 16 or 256 colors...

USB DIY uSVC VGA Console uChip Retro-gaming Console

Why use FPGA for IoT? Here’s what I think…

Everywhere people are buzzing about FPGA — Field-Programmable Gate Array. It’s a computing device that works like an Arduino Microcontroller — but in a different way. A microcontroller contains a CPU that executes instructions one at a time (but it can’t run 2 instructions simultaneously). Instead of CPU instructions, an FPGA uses a grid of electronic Logic Modules which contain bundles of Logic Gates like AND, OR, NOT. The grid looks like this (from my imagining):Grid of logic modules in an FPG...

microcontroller Field-Programmable Gate Arra Internet of Things FPGA Sigfox IoT Arduino

PCBWayExpress—— European Exclusive Route Logistic

We’re excited to announce that PCBWay have launched European Exclusive Route Logistic--- PCBWayExpress, which currently involves five countries, including The UK, Spain, Germany, France, Italy. Meanwhile, PCBWayExpress-IP(International Priority) is available for UK and Germany. Under this method of transportation, customer would pre-pay customs duties & taxes(DDP) to PCBWay. PCBWayExpressPCBWayExpress-IPBilling standard Description*Irregular packages are not accepted, and would cause a retur...

VAT package declaration requirements European Exclusive Route Logistic PCBWayExpress

How to get started with LoRa LPWAN using TTGO LoRa32

This tutorial covers how to get started with LoRa LPWAN using TTGO LoRa32 SX1276. TTGO Lora32 is an ESP32 device with a LoRa module and an SSD1306 LCD display.Using a pair of these devices, we will explore how to send and receive packets using a LoRa network. This is a point-to-point communication where one TTGO Lora32 acts as a sender and the other one is the receiver. Using the LCD display we will visualize the packets transmitted. In this project, we will use PlatformIO to build this project,...

SSD1306 LCD display ESP32 TTGO LoRa32 LoRa LPWAN

6 Misuses of Operational Amplifiers in the Design of Measurement and Control Circuits

Operational amplifier is a very important component in the measurement and control circuit, and has a very wide range of applications in the measurement and control circuit. As a commonly used device, operational amplifiers are more and more widely used in measurement and control circuits. The measurement and control circuit has more requirements for operational amplifiers than other applications, so more stringent requirements are put forward for the design of operational amplifiers. If the ope...

coupling interference voltage comparator Measurement and Control Circuits Operational Amplifiers misuse

PCBWay Q&A-004 | Common Questions for PCB Assembly Service on PCBWay-02

Last time Angell and Lesley elaborated the most basic and frequently asked questions about PCB Assembly. And today we’ll focus on some details. This time we invited Aimee, another our senior customer service staff, to our Channel. Hope her professional answer can help you know our PCB Assembly service better.Q1:Aimee, working in a PCB Prototype company, we’ll inevitably meet some urgent orders. For PCB order, our customers can choose extra urgent service to meet their needs. Then do we also offe...

Combo Kitted or Consigned Turnkey PCBA IC Programming BOM Files Customer-Supplied Parts

Disinfecting Robot with Ultraviolet Lights

Introduction to the RobotUltraviolet Germicidal Robot (UV Robot) is a teleoperated robot equipped with a UV light system. The system contains a moving robot vehicle and a ground station controller (GCS). The operator can control the robot using the joystick of the ground station controller (GCS) while observing the camera feed of the robot.The robot can disinfect and kill diseases, viruses, bacteria, and other types of harmful organic microorganisms in the environment, with ultraviolet light, by...

UVGI transmitter disinfection arduino motor driver UV light robot

Build and Flash Rust+Mynewt Firmware for PineTime Smart Watch

All you need is a Raspberry Pi and a Windows or macOS computer!UPDATE: This code in this article has been archived in the pre-lvgl branch of pinetime-rust-mynewt. The pinetime-rust-mynewt firmware has been revamped to support Rust Watch Faces on LVGL. Check out the updatesWelcome to the World of Modern IoT Gadgets! If you’re used to old-school IoT gadgets like Arduino Uno that are underpowered and have no networking and display… PineTime Smart Watch will surprise you! (Check out the Pine64 Store...

Pinetime Nrf52 Rust Internet of Things raspberry pi

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 inductors, capacitors, resistors, power switches and other components, which can protect the normal operation of the circuit. There are many forms of snubber circuits that can be divided into multiple categories according to different classification standards to adapt to different types of switching power s...

energy regenerative snubber circuit LCD RCD Snubber Circuit Switching Power Supply

All-in-one Bio-sensing Platform ---- E3K

What is E3K?E3K provides wireless framework for an intuitive understanding of bio-signals originated from the human heart, muscle, and brain. There are several modules, including electromyography (EMG) sensor - to capture muscle movements; electrocardiography (ECG) sensor - to capture heart signals; electroencephalography (EEG) sensor - to capture brain activity; and 9-DoF Inertial Measurement Unit (IMU) - to capture motion. Combined with modules, it enables a reliable and high rate of data acqu...

CrowdSupply EEG EMG ECG DCPU IMU modules E3K open source Bio-sensing

Grow It Yourself

List of Contents:IntroductionExperimentsElectronics Design & ProductionWiring & Embedded programming (I/O Devices)3D Design & 3D printing2D Design & Laser cuttingCNC MillingMoulding & CastingPutting All TogetherIntroductionI was greatly inspired after watching the TED Talk about Digital Farming, delivered by the director of MIT’s Open Agriculture Initiative, Caleb Harper, which came up with the topic: This Computer will Grow your Food in the Future. The most important questio...

LCD pcb 3D design embedded programming electronics design Grow It Yourself

Porting [druid] Rust Widgets to PineTime Smart Watch

A button that responds to our tapping and increments a counter… That’s what we shall accomplish today on the PineTime Smart Watch…The Watch App we see in the video was created with the [druid] Crate in Rust.In [druid], UI controls are known as Widgets. Our app contains two Widgets: A Label Widget that displays the counter, and a Button Widget that increments the counter.Lemme explain the code in the [druid] app…pub fn launch() { // Build a new window let main_window = WindowDesc::new(ui_bu...

PineTime Nrf52 Programming Gadgets Internet of Things Rust

PCBWay TV Show 08 How can we use Arduino to make creative projects ?

Arduino is an open-source platform used for building electronics projects. Arduino consists of both a physical programmable circuit board and a piece of software, or IDE (Integrated Development Environment) that runs on your computer, used to write and upload computer code to the physical board. The Arduino platform has become quite popular with people just starting with electronics.Today we’ll introduce plenty of amazing Arduino projects. Let’s go check them together! And we have prepared Ardui...

LM35 Arduino Arduino Nano Balancing Robot PID Remote controlled robot Arduino

PCBWay TV Show 07 Amazing IoT Projects- Internet of Things

IoT, the Internet of Things, is making our home lives more productive, ergonomic, and allowing us to manage time more efficiently. Our houses are now being turned into smart homes, creating more savings on energy, water, and gas by monitoring our usage and habits. Household white goods now have a mind of their own. Today we’ll introduce plenty of amazing IoT projects. Let’s go check them together!1 ESP32 IoT Shield PCB with Dashboard for Outputs and Sensors When we talk about IoT, it could be na...

Alexa PIR Motion smart home IoT maker robotics PCBWay

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Ranking Name Answers
1 Dustin Watts 7
2 Mr.Witsanu 7
3 Sayanik Mandal 5
4 Miguel Reis 5
5 Tomasanton 4
6 Allianbo Guu 4
7 Carl 3
8 ted 3
9 Brickhead 2
10 PCBWay Support 2
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