Source: Wireless Deep Sea Original Author: Mayfly Cai Cai When it comes to the hardware of routers, many people might say, I just want to buy a router, not build one. What’s the point of knowing all these details? This kind of thinking is actually… not wrong. Routers are quite similar to the computers or … Read more
The goal of this article is to develop an inertial navigation system for a wheeled robot, capable of controlling the robot’s movements and transmitting data collected by the robot through Wi-Fi to a PC terminal and a handheld terminal. Build the system shown in Figure 1, with a DSP chip acting as the main digital … Read more
With the continuous development of PC technology, mini PCs have begun to emerge, allowing us to fit a host into our pockets for convenient use anytime. 1. Appearance: Compact Size First, let’s talk about the appearance. I was quite surprised when I first saw the Asus TS10. This is the smallest packaged PC product I … Read more
I touched inside a cabinet and found a C3 chip. However, whether you read this article or not is up to you. This is a comparison with the first generation ESP32. A comparison of several generations, but there is no PSRAM expansion. At the end of 2020, Espressif launched the secure, low-power, low-cost RISC-V MCU … Read more
The content of Guyueju focuses on ROS, but we should not limit ourselves to software. We also need to advance in hardware learning. So today, I am opening a new topic to learn about the ESP8266 step by step, and I will share some interesting projects I completed recently. Here, I would like to thank … Read more
【Click the above「Blue Text」 to follow DF Maker Community, and become a tech beauty control together】 This project will share with you how to make an ESP8266 drone (this drone can climb walls) and how it works. We all know what drones can do, which is to fly. If I tell you that this drone … Read more
This article is from the Jishu Community’s evaluation activity of the Allwinner XR806 development board. The author used the XR806 development board and the XR806 SDK based on FreeRTOS to implement custom sending of 802.11 Beacon frames, and conducted wireless packet capture analysis and scanning tests to verify the sending results of the frames. Environment … Read more
In 1896, Italian inventor Guglielmo Marconi achieved the first wireless communication in human history. From then on, humanity opened the door to the world of radio. Guglielmo Marconi (1874-1937) The radio telegraph at that time used a spark-gap transmitter, and the transmitted signal content was Morse code. This radio telegraph could not receive and send … Read more
Wi-Fi is a wireless communication technology certified and trademarked by the Wi-Fi Alliance. The underlying technical standards are defined by the Institute of Electrical and Electronics Engineers (IEEE) in the 802.11 series of protocols.. The Wi-Fi Alliance (full name: International Wi-Fi Alliance Organization, English: Wi-Fi Alliance, abbreviated as WFA). 1. Development of Wi-Fi Protocols Since … Read more
In the late 19th century, humanity invented the wireless telegraph, thus beginning the exploration of the wireless world. The wireless telegraph machines of the time used a spark-gap transmitter, primarily to transmit Morse code. Early wireless telegraph machines, with the Morse code design in the lower left corner This telegraph machine could not receive and … Read more