Tencent Digital News (Da He) The Raspberry Pi 3 is the latest version of the highly praised DIY single-board computer, which adds Wi-Fi and Bluetooth modules, yet its price remains at £32.10 (approximately 298 RMB). Now, this product looks more like a “do-it-all” circuit board. Undoubtedly, this is the best Raspberry Pi to date. For … Read more
Last Episode Review: Playing with Raspberry Pi 3+ A Small Test Playing with Raspberry Pi 3+ To get the job done, one must sharpen their tools The Raspberry Pi 3 meets the demands of many geeks, supporting WiFi and Bluetooth wireless communication technologies, providing more possibilities for IoT development. Today, we will test the Bluetooth … Read more
Let’s briefly introduce the composition of the entire system: 1. Raspberry Pi captures camera video -> 2. Hard-encoded into FLV format -> 3. Streams via RTMP to the local NGINX-RTMP server -> 4. Player plays the live video. In fact, most of the functionalities have already been implemented in previous posts, and we just need … Read more
Overclocking is also considered a reflection of the technical level of DIY players and a measure of the research and development capabilities of DIY manufacturers. So how should we overclock the Raspberry Pi? It depends on the specific device, the most popular models on the market currently are the Raspberry Pi 3 and Raspberry Pi … Read more
Programmers’ Growth Journey Internet/Programmers/Technology/Resource Sharing Follow Reading this article will take approximately 5 minutes. Source: github.com/feigeswjtu/java-basics/edit/master/sourceCode Background While reading the Alibaba Java Development Manual, I came across the usage specifications for the hashCode() and equals() methods. Whenever equals is overridden, hashCode must also be overridden. Since Set stores unique objects and uses hashCode and equals … Read more
If you don’t want to miss my updates, remember to check the public account in the upper right corner and set it as a star, I would appreciate it. The graduation project shared this time is a relatively low-difficulty 51 single-chip microcontroller clock eternal calendar. If you are a beginner, it is very suitable to … Read more
↓Recommended Follow↓ Introduction I often play the 24-point game with my son. Sometimes it’s quite challenging, and after a while, we can’t solve it, so we just give up, treating it as unsolvable. With my mathematical ability, generally speaking, if we can’t solve it, it’s likely unsolvable. However, when encountering particularly tricky ones, it’s possible … Read more
Click “Read Original” to view the original video by Liangxu. Author:CloudDeveloper Link: https://cizixs.com/2018/01/13/linux-udp-packet-drop-debug/ Recently, I encountered a UDP packet loss issue with a server application during work. While troubleshooting, I referred to a lot of materials. I primarily used tcpdump to capture packets at various stages where problems occurred, analyze where the issues arose, and … Read more
Hello! Everyone, this is BD4SJY! It seems that everyone is really interested in amateur radio, so let’s share about MMDVM, which is quite common and has high playability in amateur radio. Before we start, since this article requires a certain level of basic knowledge, I recommend that beginners understand clearly before trying! As always, I … Read more
Introduction to Node-RED Framework and Data Flow Deployment We have previously introduced the basics of Node-RED, including login functionality. Today, we will learn about the specific framework of the open-source visual development tool Node-RED and how to deploy the first data flow. 1 Introduction to the Interface Framework The data flow editing interface consists of … Read more