The Raspberry Pi is the size of your ID card, housed in a simple but textured cardboard box. Find the “Open Here” mark on the side, gently tear it open, and a complete Raspberry Pi with a gem-like emerald color appears before you. A whiff of paper fragrance wafts close to your nose, just like … Read more
1、reboot means to restart. 2、source makes the modified files take effect immediately, avoiding the problem of having to restart for the changes to take effect. For example, if we modify /etc/profile, the changes will not take effect immediately. In this case, we can enter source /etc/profile to apply the changes. There will be more updates … Read more
Previously recommended excellent open source projects on GitHub, “What are the excellent VHDL/Verilog/FPGA projects on GitHub“. OpenWIFI, as a leader in the communication field, many people will naturally take it for learning. This article will share with you how to build a low-cost OpenWIFI using ZYNQ (requires ZYNQ010 or higher chip) + AD936X. Introduction openwifi: … Read more
Click the blue “Linux” in the upper left corner, and select “Set as Favorite” Get the latest articles first 1 Do you know how to mirror an Android phone to a Linux system? This article will explain how to mirror an Android phone to Ubuntu using the Scrcpy software. 1 Introduction to Scrcpy First, let’s … Read more
NO.1 Introduction to HACS What is HACS? HACS stands for Home Assistant Community Store, which can be understood as an application store. It can enhance plugin functionality and supplement features that are not implemented by the official version. NO.2 Installing HACS First, you need to enter the Docker container (in terminal form). Click on the … Read more
Writing this document because of a comment. I have written an article about recognizing calculator screens, explaining that it can be independently deployed on apps, mini-programs, Raspberry Pi, and other embedded devices. An old brother said that this is all old technology that has been applied for many years. He is not wrong; it may … Read more
Machine Heart Reports Participants: Zhang Qian, Egg Sauce, Xiao Zhou About two weeks ago, the Raspberry Pi 4 announced its latest upgrade: a new 8GB memory version, priced at $75. Is this new Raspberry Pi really worth it? To answer this question, a YouTuber named Jeff Geerling had a bold idea: on a workday, unplug … Read more
Click “Read Original” to access more VxWorks resources This video demonstrates the use of TSN to send and receive data on the VxWorks system. Data can be transmitted accurately and in real-time even during network storms through the TSN switch! Early Plum Blossom | Free WeChat Red Envelope Cover
Follow+Star PublicNumber, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | Embedded Column Some readers might ask: Can FreeRTOS create tasks and delete tasks? Is it dynamically allocated memory? xTaskCreate(LED_Task, "LED_Task", 128, NULL, 6, NULL); If we want to elaborate on this question, there are many related knowledge points involved. Below are … Read more
1. From Polling to Interrupt Many students prefer polling over interrupt-driven operations. Is this related to our nature? Everyone likes to have everything under control and dislikes being interrupted. We often have experiences where we are talking to someone and suddenly receive a phone call, and after the call, we can’t remember what we were … Read more