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
We live in an era where sharing is instant; when we capture tempting food or stunning landscapes, we want to post them on social media immediately. However, many older and professional cameras lack Wi-Fi functionality, making it difficult to transfer photos to smartphones or tablets anytime, anywhere, which can be frustrating! But there is a … Read more
Medical imaging diagnostic equipment characterized by non-invasive, efficient, and intuitive features is one of the most important means for disease screening and auxiliary diagnosis in clinical departments. Imaging data accounts for the largest proportion of medical information, including ultrasound diagnostics, DR (digital X-ray imaging devices), CT (computed tomography), MRI (magnetic resonance imaging), endoscopy, and nuclear … Read more
With the popularity of smart devices, people have become accustomed to accessing Wi-Fi networks anytime and anywhere. What are the differences between wireless Wi-Fi networks for mobile devices? Let’s explore them one by one. Difference 1: Home Wi-Fi Routers VS Enterprise Commercial APs Home Wi-Fi routers range from dozens to hundreds of yuan, while commercial … Read more
Slow internet speeds have become one of the most frequent complaints received by broadband service providers. Studies show that most consumers are only experiencing about 50% of the maximum bandwidth of their routers. Wi-Fi signals are affected by six major factors The reason Wi-Fi speeds do not meet expectations is related to these six factors. … Read more