在工业自动化和物联网设备开发中，Modbus协议凭借其简单可靠的特性，成为了嵌入式系统通信的首选。 然而，传统的Modbus协议栈往往体积庞大，动辄几万行代码，对于资源受限的微控制器来说显得过于臃肿。 最近，我在GitHub上发现了一个名为nanoMODBUS的开源项目 ...

众所周知，乐鑫 ESP8266 是过去十年IoT物联网领域最受欢迎、最实用的模块之一。 而ESP32模块是ESP8266的升级版本。除了Wi-Fi模块，该模块还包含蓝牙4.0模块。 双核CPU工作频率为80至240 MHz，包含两个Wi-Fi和蓝牙模块以及各种输入和输出引脚， ESP32是物联网项目的理想 ...

在工业自动化和智能设备的时代，Modbus协议以其开放性和通用性成为了许多设备通信的首选。无论是在制造业、能源管理还是智能建筑中，Modbus都扮演着关键角色。然而，随着技术的发展，Modbus RTU和Modbus TCP这两种协议的应用逐渐成为工程师们关注的焦点。

Abstract: Currently, most of the monitoring of electrical energy usage in buildings is carried out manually. The implementation of Internet of Things (IoT) technology is essential for efficient and ...

leider scheitere ich daran deine esp32-jk-pb-modbus-example.yaml zum laufen zu bekommen. Ich habe deine YAML unverändert bis auf den Webserver gelassen, aber es werden nur Fehlermeldungen zu Modbus ...

Waveshare ESP32-P4-Module-DEV-KIT credit card-sized board may look like a Linux-powered Raspberry Pi SBC, but instead, it’s based on an “ESP32-P4-Module” comprised of a 400 MHz Espressif ESP32-P4 RISC ...

A hot potato: The ESP32 chip, found in over a billion devices worldwide, contains undocumented vendor-specific commands that could potentially be misused to access device memory and manipulate ...

Update 3/9/25: After receiving concerns about the use of the term 'backdoor' to refer to these undocumented commands, we have updated our title and story. Our original story can be found here. The ...

I am experiencing an issue with reading temperature data via Modbus using an ESP32 microcontroller. The temperature values are consistently reported as zero, despite ...

Abstract: Continuous monitoring of power consumption data obtained from energy meters and drives installed in commercial and industrial applications is crucial for the efficient utilization of ...