(Shared by rekcah1986) 0. It is impossible to change, you must first have a regular speaker. 1. Flash the Stretch system, address: https://downloads.raspberrypi.org/raspbian_latest 2. The default source seems to have problems, change it: sudo vim /etc/apt/sources.list #deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi <<— Block this source # Uncomment line below then 'apt-get update' to … Read more
There are many tutorials online about installing OpenWrt on Raspberry Pi. Here, I will share my personal installation experience and the pitfalls I encountered 🕳. I hope this article can provide some small help to you who found it. Preparation: 1 Raspberry Pi 3B 2 TF card 3 Network cable 4 Laptop 5 Router connected … Read more
Produced by Big Data Digest Author: Caleb The rotary phone is something that many of us have seen in classic Hollywood films. As a kid, I thought rotary phones were way cooler than the regular phones we have now; I wished I could have one. Guess the movie: Which film is this from? This luck … Read more
Next, he even wants to play Rainbow Six on the GBA. Basically Homeless is an FPS game streamer on YouTube. He has nearly 850,000 subscribers, not because of his gaming skills, but because most people are drawn to his quirky ideas. He has tried playing FPS games with unusual peripherals like guitars, pineapples, and even … Read more
When working in a computer room, it is often necessary to keep the air conditioning on, but we know that blowing air conditioning for a long time is not good for the body. Therefore, life hacker Jim thought of creating a mini cooling device that can replace air conditioning. First, you need to prepare an … Read more
MAKER:jnthas／译：趣无尽 This is a Super Mario themed clock, based on ESP32 and a color dot matrix, which is very vivid and interesting. Mario will stand on the stage to hit the bricks to update the time digits. In addition to the Mario dial, we will also create a dial that displays the time in words, … Read more
Introduction to Ultrasonic Radar: The functionality of Arduino is truly powerful, allowing for the creation of interesting projects using various sensors. Today, we will develop an ultrasonic radar using the Arduino board and ultrasonic sensor, capable of detecting distances up to 40CM. When there are obstacles, the scanning interface will display red and show the … Read more
【Click the above「blue text」 to follow the DF Maker Community and become a technology aesthetician together】 The community’s official account records the maker-related content worth sharing every week, released every Friday～ Content is open source, and contributions or recommendations of relevant content are welcome. Submission email:<span>[email protected]</span> There will be a one-week break during the National … Read more
Project Name: ESP32 S3 | Campus Life Assistant 7 Project Author: lxy0423 Project Description DIY an alarm clock is common, but DIY a “smart alarm clock” with features like Bilibili interaction, Xiaomi bracelet interaction, and course schedule management becomes interesting. The production cost of this smart alarm clock is around 110 yuan, based on ESP32-S3. … Read more
Figure 1 Stepper Motor Piano #Project Origin# Stepper motors are commonly encountered in various small to medium processing equipment, such as laser cutters or 3D printers. When using the laser cutter, I discovered that the stepper motor emits sounds similar to musical instruments while cutting circular patterns. Why does this phenomenon occur? Figure 2 Stepper … Read more