1. LiteOS OC COAP Abstract Component Overview To accommodate various modes of using CoAP to connect to Huawei OC, this layer interface is adopted, providing the necessary interfaces for applications above and allowing flexible adaptation of access methods below. The OC COAP AL API interface is declared in <oc_coap_al.h>, and you need to include this … Read more
After studying the “Basic Knowledge” section of “Zero Basics Introduction to IoT” and the “MQTT Protocol” section, we are now going to apply the IoT knowledge we have learned to practical operations. This IoT weather clock project, as the first project in the “MQTT Application” section, uses the ESP8266 development board along with a TFT … Read more
Follow us on WeChat “DLGG Maker DIY“ Set as “Starred“, heavy content delivered first. Automatic Timed Heating and Power Off Requirements No need for requirements analysis, simply put, I’m lazy. I don’t want to heat water every day. Don’t tell me to keep it on all the time; my NAS isn’t always on either, energy … Read more
Currently, the widely popular ESP8266 and ESP32 WiFi modules have rich applications in various fields, but the most prominent market is undoubtedly in IoT applications, such as home automation, smart lighting, smart metering, and remote control. You can find many ready-made projects on the Internet. ArduiTouch is a smart device with a touchscreen shell, specifically … Read more
This is about building a simple smart home system. I have created a small box for this smart home system, aimed at providing a convenient way to control regular household appliances, allowing control of lights, water heaters, fans, doors, air conditioners, etc., when connected to the internet via a mobile phone. The hardware components of … Read more
If you don’t want to miss my updates, remember to check the public account in the upper right corner and set it as a star, take down the star and give it to me. Six PCB boards and 54 LEDs create a real LED dice. In addition to using the number of lit LEDs to … Read more
From October to December 2017, the university electronic competition section of 21icbbs launched the “Preliminary Competition for Electrical Contest” activity, attracting numerous participants. As the event is coming to an end, I will gradually showcase some of the outstanding works through our WeChat public account. If you’re interested, you can check out the specific activities … Read more
The MicroPython MQTT library is designed for developers using MicroPython, providing a non-blocking way to communicate with an MQTT Broker. This library supports various small devices, such as ESP8266, ESP32, and Pyboard D, allowing developers to easily handle message passing between devices and achieve data exchange through a publish/subscribe model. Basics of MQTT Protocol MQTT … Read more
The Cortex-M Experiment Box (CW32 version) is a development experiment device based on the CW32F030C8T6. The CW32F030C8T6, launched by Wuhan Xinyuan Semiconductor Co., Ltd., is a cost-effective domestic MCU based on ARM’s Cortex-M0+ core, with a maximum clock frequency of 64MHz, 64KB of FLASH, 8KB of RAM, and in an LQFP48 package. It is fully … Read more
Recently, I have been quite busy with work, but I still managed to squeeze out some time to finish the matrix LED clock mentioned in my last article. I made a video to introduce this clock, which you can watch on Bilibili or YouTube. Today, I am writing another article to detail the design concept … Read more