Ansible is an agentless automation tool based on SSH and HTTPS, which allows for batch server configuration management and application deployment through simple YAML scripts. It is widely used in enterprise IT environments for batch operations and DevOps process optimization. This article provides a detailed introduction to the installation, configuration, and compatibility handling of Ansible … Read more
Click the blue text Follow us This article is a technical piece from the ‘Hansi Bian’ forum, authored by gasment. Thanks to the author! The copyright belongs to the original author, and any infringement will be pursued. Introduction This article organizes the test data for network disconnection control of Xiaomi smart home devices under the … Read more
A new ultra-low-cost Bluetooth module has just been released! The HLK-B50S is a master-slave integrated BLE5.3 Bluetooth module, priced as low as 8.8 yuan, featuring dual-mode Bluetooth, supporting GATT or SPP data transmission, with a transmission distance of over 80m in open environments. HLK-B50S Product Introduction The HLK-B50S is a BLE5.3 dual-mode Bluetooth-serial transmission module … Read more
Home Assistant (HA) is a powerful home automation system, but its support for Bluetooth Low Energy (BLE) devices has always been somewhat lacking. BLE_Monitor is an excellent custom component created to address this issue. It can passively monitor a wide variety of BLE devices from different brands and types, greatly expanding HA’s capabilities and enhancing … Read more
In the past two years, there has been considerable debate among stakeholders in various IoT technologies regarding which technology holds more advantages. Are these technologies moving towards integration or continuing to compete? Will the future be one of coexistence or selective development? According to consulting firm IDC, the market size of IoT is expected to … Read more
The LoRaWAN CN470 standard adopts asymmetric frequencies, which is the result of comprehensive considerations of multiple factors. This design is significant for enhancing network performance and meeting practical application needs: 1. Effective Utilization of Spectrum Resources In the LoRaWAN CN470 frequency band, the uplink and downlink use different frequency ranges. There are 96 uplink channels, … Read more
The following are several common LoRaWAN NS vendors along with their features and a comparison of the number of devices supported for free. Loriot Features: A powerful LoRaWAN network server that supports high performance, high security, and scalability. It offers flexible licensing options, including perpetual licenses and annual subscription licenses. Number of Free Supported Devices: … Read more
In today’s rapidly developing Internet of Things (IoT) technology, smart homes, smart buildings, and smart offices have gradually become important scenarios in urban life and enterprise management. For these spatial environments, the widespread application of LoRaWAN technology in low-power wide-area networks provides reliable communication guarantees for various projects. However, in the face of complex indoor … Read more
Have you ever wondered how a website generates a password after you enter “2333！@#￥” when setting it? How are the widely used encryption algorithms generated? How do they protect online financial activities worldwide? How do hackers decipher passwords? In fact, all of these stem from a mathematical problem. (Image source: veer图库) The Birth of Network … Read more
CANopen serves as a “common language” among industrial devices, enabling seamless “communication” between devices from different manufacturers. The S7-200 SMART, equipped with a CANopen module, acts like a proficient “translator” of this language, effortlessly commanding and coordinating various intelligent devices. This technology simplifies complex automation systems, allowing what once required intricate wiring to be connected … Read more