Click the above【Tencent Cloud IoT】 to follow us and set a star mark Co-build the IoT industry ecosystem Following the last session, the highly requested access platform practical course is here This session of the “Techo Youth September University Developer Open Class” continues to be exciting ThemeTencent Lianlian Developer Forum: Quickly Access Platform Based on … Read more
Through this article, you will gain an understanding of the basic concepts of the Internet of Things (IoT), its application areas, and development prospects, as well as some basic knowledge of the Internet and the MQTT protocol. Here, we will use the ESP8266 NodeMCU and Arduino IDE to guide you in building an Alibaba Cloud … Read more
Introduction This example will demonstrate how to use the ESP8266-based NodeMCU to upload temperature and humidity data collected through the DHT11 sensor to the MQTT cloud service using the MQTT protocol. It will also show how the application side subscribes to these data and processes them. The reason for using the MQTT protocol is that … Read more
Overview Previously, I wrote a tutorial on building a temperature and humidity monitor with 20 lines of code, and I also promised to write a tutorial without any coding. After a long delay, I finally finished it. Some content is excerpted from the Baidu Cloud IoT Platform documentation. Development Board NodeMCU is an open-source development … Read more
NodeMCU is an open source firmware based on Lua, specifically designed for Espressif’s ESP8266/ESP32 WiFi SOC chips. It uses a modular flash-based SPIFFS file system. NodeMCU is written in C and is based on Espressif’s non-operating system SDK. Initially, NodeMCU firmware was developed as a companion project for the popular ESP8266-based NodeMCU development module, but … Read more
NodeMCU Series Tutorial: ESP8266 and the IoT Magic Device NodeMCU Light Up an LED: How to Program NodeMCU Using Arduino IDE In the previous article, we introduced how to light up an LED using NodeMCU, which is the most basic step in learning any microcontroller. Ideally, we could explain how to drive various sensors and … Read more
One Introduction This year’s West Lake Sword IOT part provided a development board equipped with OpenWrt, and participants needed to analyze the development board and the provided Firmware.zip to answer the questions posed by the organizers. Two Overview of Questions and Score Distribution Since there were no screenshots of the questions retained, I organized the … Read more
Reading this article will take approximately 10 minutes. Getting to Know NodeMCU Development Board NodeMCU is an open-source IoT hardware development board. It has gained increasing popularity among makers worldwide in recent years due to its support for WiFi functionality and its similarity in usage to Arduino development boards. The size of NodeMCU is similar … Read more
Chapter 1: Basics of RPi.GPIO Module Importing the Module To import the RPi.GPIO module: import RPi.GPIO as GPIO By doing this, you can refer to it as GPIO for the rest of this script. You can check if the module was imported successfully by throwing an exception: try: import RPi.GPIO as GPIO except RuntimeError: print("Error … Read more
The Internet of Things must be a security network. Joint prevention and control, close collaboration, truly build a “cloud + network + terminal” three-dimensional defense system, making security a public good for all Internet of Things users. Does installing surveillance cameras make homes safer? Recently, a reporter’s investigation found that spending a hundred yuan to … Read more