Hardware Design

ASIC vs FPGA: A Comparative Analysis

by
ASIC vs FPGA: A Comparative Analysis

Project ASIC (Application-Specific Integrated Circuit) FPGA (Field-Programmable Gate Array) Full English Name Application-Specific Integrated Circuit Field-Programmable Gate Array Core Features Designed specifically for a certain type of function/product, highly customized Can be configured and programmed on-site by developers, high flexibility Flexibility Low (cannot be modified after leaving the factory) High (reprogrammable, quick trial and error) … Read more

Air780EPM: Common ADC Hardware Circuit Design Scenarios

by
Air780EPM: Common ADC Hardware Circuit Design Scenarios

Air780EPM——Hezhuo’s low-power4G-Cat.1module launched in 2025,one of the main models,features 4MB of RAM, supports LCD, camera, Modbus, Ethernet, and CAN; it has more powerful secondary development resources, improved peripheral capabilities, and is more suitable for industrial scenarios. Recently, an engineer friend asked:What is the ADC accuracy of the Air780EPM? They want to save an external ADC… … Read more

Open Source Solution: Allwinner D1s Smart Home Control (86 Box)

by
Open Source Solution: Allwinner D1s Smart Home Control (86 Box)

Project Name: Allwinner D1s Smart Home Control Virtual Light Rendering Interaction (86 Box) Project Author: It’s Xiaoye~ Introduction Every time before going to bed, I have to prepare for a “100-meter” sprint(to the bed).Never mind, I can’t be too bold˙Ⱉ˙ฅEven after lying in bed, I still think, ah, did I turn off the bathroom light? … Read more

Guide to Avoiding Pitfalls in Embedded Development: A Comprehensive Analysis and Practical Solutions for I2C Bus Deadlocks

by
Guide to Avoiding Pitfalls in Embedded Development: A Comprehensive Analysis and Practical Solutions for I2C Bus Deadlocks

1. Introduction: When the “Two Wires” Suddenly “Stop Working“ In the daily work of embedded engineers, the I2C bus, with its two-wire communication feature, is a prime example of “minimalist aesthetics“. However, this seemingly simple two-wire system can suddenly fall into a “deadlock“—the clock line (SCL) stubbornly remains high, while the data line (SDA) is … Read more

Temperature Upper and Lower Limit Alarm Based on 51 Microcontroller – LCD1602 Display

by
Temperature Upper and Lower Limit Alarm Based on 51 Microcontroller - LCD1602 Display

Click the blue text·Follow us Temperature Alarm Based on 51 Microcontroller (Simulation + Program + Schematic + Design Report) 01 Function Introduction Specific Functions: This product is designed using a 51 microcontroller + DS18B20 temperature sensor + LCD1602 display + transistor. 1. DS18B20 collects temperature, LCD1602 displays temperature; 2. Temperature measurement range: -55 to 125 … Read more

First Prize in Technological Education Innovation: IoT-Based Multi-Terminal Photoelectric Effect Experiment System

by
First Prize in Technological Education Innovation: IoT-Based Multi-Terminal Photoelectric Effect Experiment System

Click the blue text to follow us Author Chen Sixin / Quanzhou No. 7 Middle School, Fujian Province The photoelectric effect experiment involves the most fundamental concepts of quantum physics and serves as an important bridge between quantum physics and classical physics. The physics curriculum standards require students to understand the experimental laws of the … Read more

A Comprehensive Breakdown of Low Power Design in Portable Product Development

by
A Comprehensive Breakdown of Low Power Design in Portable Product Development

Author: Electronic Engineer Alliance Source: Power Network Sphere Number “A Comprehensive Breakdown of Low Power Design in Portable Product Development” Introduction The low power design of portable products is akin to how our parents managed their finances, where every penny must be meticulously accounted for to ensure that every expenditure is justified. Similarly, every mAh … Read more

Understanding the Microcontroller Startup Process (STM32) for Hardware Engineers, Including a Troubleshooting Manual for Startup Issues

by
Understanding the Microcontroller Startup Process (STM32) for Hardware Engineers, Including a Troubleshooting Manual for Startup Issues

As a hardware engineer, have you ever encountered these issues: The circuit board shows no response after power is applied, like a “brick”. The program occasionally starts, but sometimes hangs. Peripheral initialization is abnormal, yet the code logic is correct. These issues stem from startup process anomalies 80% of the time! Let’s learn about the … Read more

Fundamentals and Practical Guide to Microcontroller Technology: Understanding Why Engineers Earn High Salaries

by
Fundamentals and Practical Guide to Microcontroller Technology: Understanding Why Engineers Earn High Salaries

1. Overview of Microcontroller Technology 1.1 Definition and Core Architecture A microcontroller is an integrated circuit that incorporates a central processing unit (CPU) with data processing capabilities, random access memory (RAM), read-only memory (ROM), various I/O ports, an interrupt system, timers/counters, and possibly additional circuits such as display drivers, pulse width modulation circuits, analog multiplexers, … Read more

Introducing the M5Stack Tab5: A Portable IoT Development Device Based on ESP32-P4

by
Introducing the M5Stack Tab5: A Portable IoT Development Device Based on ESP32-P4

Since M5Stack was acquired, I have paid little attention to the brand, but recently I discovered that they released a new product, which is completely different in form from previous ones, and it is also part of their core control board series. It is based on the ESP32-P4. M5Stack Tab5 This device is officially positioned … Read more