Active Low Pass Filter Circuit Analysis using Siglent SDS2102X Plus Oscilloscope [Part-1]

In this video, I explain some theories behind a low pass active filter circuit, then I built a simple active low pass filter using the LM358 opamp. I tested the filter's behavior using the Siglent SDG...

Low Pass Filter Circuit Analysis

Cheap USB to UART Converter using Microchip MCP2200

By Hesam Moshiri, Anson BaoNowadays USB port is used widely for data transactions between electronic devices and computers. In many scenarios, there is no need to communicate with the USB port directl...

USB microchip MCP2200

Back Drilling --- A special craftsmanship of control depth drilling

What is Back Drilling?Backdrill is the process of creating vias by removing the stub in multilayered printed wiring boards, to allow signals to flow from one layer of the board to another. (The stubs ...

back drilling depth drilling PTH

30V-4A Adjustable Power Supply (CC-CV)

By Hesam Moshiri, Anson BaoPower supplies are one of the most popular topics in electronics. There are two major types of regulated power supply: linear and switching. Both power supply types introduc...

Adjustable Power Supply

Have You Ever Seen These Pads?

The pad is the basic unit of PCB surface mount assembly. On the printed circuit board, the electrical connections of all components are made through pads. So, what are the pad shape and the standards ...

pad plum blossom pad Teardrop Pad

What Tg means to FR-4 board?

The role of the substrate for printed circuit boards is as important as the role of printed circuit boards for electronic devices. According to the property of PCB substrate, it can be divided into or...

Tg FR-4 pcb Td CTE

Why Some PCBs Need Edge Plating?

Some people may have seen many industrial pcb boards or RF pcb boards with a circle of vias and copper tape around them, and even some RF pcb boards will be metalized around the sides of the board. Wh...

edge plating pcb

Tips for soldering ---How to solder perfectly.

1.Tools for Hand solderingElectric soldering iron/ stand/ Hot air gun/ Soldering head etc.Conditions for soldering:Solderable parts/ Clean soldered metal surface/ Suitable flux/ Proper soldering tempe...

soldering welding flux solder joint

A Digital FM Receiver with Arduino (Including 3W+3W Class-D Stereo Amplifier)

By Hesam Moshiri, Anson BaoFM transmitters/receivers are among the top favorite circuits of any electronic enthusiast. In this article/video, I have introduced a complete digital FM receiver design th...

Arduino Digital FM Receiver

7 Surface Finish in PCBWay

A conventional printed circuit board (PCB) has a copper layer on the board. If the copper layer is not protected, it will be oxidized and damaged, directly affecting subsequent soldering. And surface ...

surface finish pcbway solderability HASL OSP ENIG ENEPIG

Build Your IoT Sensor Network — STM32 Blue Pill + nRF24L01 + ESP8266 + Apache Mynewt + thethings.io

Law of Thermospatiality: Air-conditioning always feels too warm AND too cold by different individuals in a sizeable room.Law of Thermospatiality in actionIt’s impossible to get perfect air-conditionin...

IoT ESP8266 Internet of Things Nrf24l01 Stm32 thethings.io Apache Mynewt

Principles of Graphic Transfer Technology

Principles of Graphic Transfer Technology (Exposure- DES)Under a certain temperature and pressure, a dry film is attached to the board surface, and then the negative film is used for alignment, and fi...

Graphic Transfer DES development etching strip exposure

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 ...

RF pcb design layout routing cavity

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...

FPGA Gowin arduino IoT programming Internet of Things

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 in...

RCC BUCK Constant Current LED driving

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 ...

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

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 ex...

LoRa LPWAN TTGO LoRa32 ESP32 SSD1306 LCD display

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,...

misuse Operational Amplifiers Measurement and Control Circuits voltage comparator coupling interference

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...

raspberry pi Internet of Things Rust Nrf52 Pinetime

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 i...

Rust Internet of Things Gadgets Programming Nrf52 PineTime

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