Configuring and Using OpenWrt Domestic Sources

Currently, the latest official firmware for OpenWrt is 23.05.5, which was updated on September 28. The entire community is still very active. The official firmware image download link is: https://downloads.openwrt.org/releases/23.05.5/targets/x86/64/ Here, 23.05.5 is the firmware version: targets is the archived image files, x86/64 indicates x86 architecture, 64-bit system. You can choose according to your hardware. … Read more

OpenWrt Wireless Management Commands and Tools

View connected wireless clients to the OpenWrt router: 12 iwinfo wlan0 assoclistiw dev wlan0 station dump View allocated DHCP client IPs: 1 cat /tmp/dhcp.leases Scan wireless routers/APs: 1 iwinfo wlan0 scan View wireless information of the OpenWrt router: 12345678910111213 iwinfo wlan0 infowlan0 ESSID: "OpenWrt" Access Point: 00:1F:A3:65:55:8E Mode: Master Channel: 5 (2.432 GHz) Tx-Power: 20 … Read more

Comprehensive Guide to OpenWrt Network Configuration

OpenWrt is a powerful router operating system, and it can also be used for other purposes. Currently, it is most widely used as a router. The core function of a router is, of course, networking. Familiarity with OpenWrt network configuration is essential for both developers and enthusiasts. I believe OpenWrt is the best system to learn Linux networking, … Read more

Understanding the Role of 22pF Capacitors in MCU Crystal Oscillator Circuits

This article is original by the author, please indicate the source if reprinted. This question has troubled the author for more than 5 years, and one product lost millions due to this issue.Most MCU enthusiasts do not understand why a 22pF capacitor needs to be connected on both sides of the MCU crystal, as this … Read more

Next Generation Embedded AI Control MCU: Haisheng A²MCU for Smarter and More Energy-Efficient Appliances

The China Household Appliances and Consumer Electronics Expo (hereinafter referred to as “AWE 2024”) was held in Shanghai on March 14, showcasing unprecedented splendor. Major appliance manufacturers launched new products while also demonstrating innovations in the appliance sector using new technologies such as AI. For example, AI energy-saving air conditioners and AI smart weighing washing … Read more

Understanding the Blurring Lines Between MCU and MPU

Once, there was a clear distinction between microprocessors (MPUs) and microcontrollers (MCUs), as they served entirely different functions. However, with the increasing richness and performance of modules integrated into MCUs, this boundary has gradually begun to dissolve. In recent years, many manufacturers have introduced MCU products that combine the functionalities of both MCUs and MPUs. … Read more

The Battle of Microcontrollers: 8-bit vs 32-bit

MCU is a small computer that uses a single integrated circuit, containing one or more CPUs (processing cores), memory, and programmable input/output peripherals. These microchips are an affordable and popular product responsible for data acquisition, sensing, and control in the physical world. MCUs can be applied in various systems, from automotive engine control and implanted … Read more

Differences Between MCU and MPU

Differences MCU (Microcontroller Unit) and MPU (Microprocessor Unit) are two different types of embedded processors, and there are several key differences between them: 1. Purpose 👉MCU: MCUs are typically used in embedded systems that need to perform specific control tasks such as sensor data acquisition, automatic control, and control of embedded devices. They focus on … Read more