The OLED display is one of the most important output devices in the electronic world and is widely used in embedded devices, mobile phones, TVs, and other electronic products. The main difference between OLED and LCD displays is that OLED does not require a backlight, making it more energy-efficient. Today, we will learn how to … Read more
All the materials mentioned in the video have been prepared for you. You can reply with the keyword “ESP8266” in the backend to download for free (“ESP” is all uppercase). The accounts on Bilibili and Douyin with the same name will be updated from time to time, and you can also follow them. Of course, … Read more
The temperature and humidity sensors come in various models, such as DHT11 and HTU21D. However, due to parameters such as accuracy and sensitivity, they are not suitable for industrial-grade temperature and humidity monitoring. Their accuracy and sensitivity are both poor. Therefore, in this article, we will use the SHT31 temperature/humidity sensor. They are the best … Read more
/ Building an Electronic Clock and Weather Display Based on the ESP8266 (NodeMCU) Platform/ Video 1. Introduction I previously had a clock on my desk that used a OnePlus 5 with an OLED screen, powered by a Snapdragon 835 SoC, with a ROM derived from the Pixel Experience of Android 10. The clock app used … Read more
ESP8266 ESP8266 is a chip developed by Espressif. Generally speaking, development boards equipped with the ESP8266 chip, like the one shown below, are called ESP8266 NodeMCU. There may be slight variations, but as long as the chip is labeled ESP8266, it should work without issue. Anyone can create their own ESP8266 NodeMCU with an ESP8266 … 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
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
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
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
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