Connecting to Aliyun MQTT via LAN and WAN: ESP8266 Debugging Steps

Connecting to Aliyun MQTT via LAN and WAN: ESP8266 Debugging Steps

4.1 LAN Debugging Hardware Preparation: ESP8266-01S module and ESP debugger Use your phone to create a 2.4G Wi-Fi hotspot (5G is not allowed); Connect your computer to the phone’s Wi-Fi hotspot, and also connect the ESP8266 to the Wi-Fi hotspot; Send the command AT+CIFSR to the ESP8266 to query its IP address, which should return … Read more

MQTT High-Frequency Q&A: A Developer’s Guide to Avoiding Pitfalls!

MQTT High-Frequency Q&A: A Developer's Guide to Avoiding Pitfalls!

In IoT development, the MQTT protocol has become the “golden partner” for cloud connectivity due to its lightweight nature, low bandwidth consumption, and efficient communication. However, developers often encounter issues such as connection management, protocol compatibility, and low power optimization in practical applications. Newcomers may also struggle with practical operations regarding hardware and software… This … Read more

AT Commands: Air780E Module HTTP Application Example

AT Commands: Air780E Module HTTP Application Example

Read the latest documents and participate in:【Find Errors in Documents to Win Prizes】 Activity The latest document content of this article can be found at: https://docs.openluat.com/air780e/at/app/command/http 1. Overview of AT Commands AT commands are an ancient method of communication that has been in use since wired communication. As of 2024, it has a history of … Read more

Using ESP8266 to Connect to Wumart

Using ESP8266 to Connect to Wumart

Click the blue text above: “IoT Guesthouse” to follow us In this section, we will guide you to update the Ai-Thinker ESP8266 MQTT transparent transmission AT firmware, and then use a serial tool to control the ESP8266 to connect to Wumart Smart. 01 Preparation 1Hardware Preparation (1) Prepare the ESP8266 module, we will use the … Read more

ESP8266 Weather Clock Based on STM32 (Part 1)

ESP8266 Weather Clock Based on STM32 (Part 1)

▲Author: Yan Guiling Introduction: Today’s experiment mainly involves developing a small function based on STM32 that can obtain weather and time in real-time. This function can be applied to devices that need to display weather and time, and the hardware cost is very low. If anyone is interested, feel free to check it out! 1. … Read more

Basic Usage of ESP8266 Serial WiFi Module

Basic Usage of ESP8266 Serial WiFi Module

The ESP8266 is an ultra-low-power UART-WiFi transparent transmission module, featuring highly competitive packaging size and ultra-low energy consumption technology. It is designed specifically for mobile devices and Internet of Things applications, allowing users’ physical devices to connect to Wi-Fi wireless networks for internet or local area network communication, thus achieving networking functionality. Although the “WiFi … Read more

A Brief Discussion on NB-IoT Module Debugging

A Brief Discussion on NB-IoT Module Debugging

Source: LPWAN Technology IoT Think Tank Organized and Published Please indicate the source when reprinting —— [Introduction] —— The author’s remarks: The following narrative is solely personal opinion, devoid of any emotional color. Background The core development technologies of NB-IoT are held by a few major companies, such as Huawei HiSilicon, Qualcomm, and Intel. Of … Read more

Getting Started with Embedded Systems for Edge Computing

Getting Started with Embedded Systems for Edge Computing

Introduction: The AT device package for controlling wireless modems is one of the most popular extensions for RTOS. This article has 6145 words, reading time approximately: 7 minutes The AT device package for controlling wireless modems is one of the most popular extensions for RTOS. RTOS is an open-source embedded operating system, developed by RT-Thread. … Read more

No Coding Required: Node-RED on Raspberry Pi

No Coding Required: Node-RED on Raspberry Pi

Check out this tutorial to see how easy it is to set up hardware flows using Node-RED’s drag-and-drop interface. — Surya G Check out this tutorial to see how easy it is to set up hardware flows using Node-RED’s drag-and-drop interface. Node-RED is a programming tool that allows you to quickly connect hardware devices using … Read more

Essential Raspberry Pi Commands Using vcgencmd

Essential Raspberry Pi Commands Using vcgencmd

vcgencmd tool is used to output information from the VideoCore GPU on Raspberry Pi. You can find the source code for the vcgencmd utility at Github.To get a list of all supported vcgencmd commands, use vcgencmd commands. Below are some useful commands and their required parameters. vcos The vcos command has two useful subcommands: version … Read more