As the weather gets hot, fans become one of the essential tools for cooling off. However, the fan blades and outer mesh accumulate a lot of dust. If not cleaned, the air blowing out will be filled with dust, which can easily cause respiratory diseases. So, is there a quick way to clean the fan? … Read more
The author works in home appliance repair and often has customers bring floor standing remote control fans for repair. These fans have remote control features and a high-end stylish appearance, but their lifespan is relatively short. Most of them have indicator lights on but cannot start the fan when the panel switch is pressed. The … Read more
◎Computers Cannot Do Without Fans It can be seen that traditional Chinese medicine treats depression as the circulation of the body’s Qi. In general, everything, when obstructed, can lead to illness. If you can help patients relieve their depression and regulate their emotions, many ailments can be alleviated. In our current era, which is highly … Read more
Today I encountered a Lenovo computer from 2009 that only makes the sound of the CPU fan running at high speed on boot, but the monitor has no signal, and the mouse and keyboard lights are not on. Repeatedly switching it on and off has no effect. First, determine if there is a POST (Power-On … Read more
If you frequently pay attention to the disassembly images of laptops, you will find that fans and heat sinks occupy a lot of space. Many high-end gaming laptops even require dual fans and four sets of heat sinks to address cooling concerns. If a laptop wants to achieve a more attractive slim design, it is … Read more
In IoT applications, the ESP32 has become the preferred choice for many developers due to its low power consumption and rich features. However, using WiFi to connect to MQTT in low-power scenarios brings additional power burdens, which is a significant challenge for battery-powered devices. The ESPNow2Mqtt library was born to address this issue, utilizing the … Read more
How to Flash WLED Firmware to ESP32 via Web Browser 1. Visit install.wled.me To flash the latest WLED firmware via your browser, please visit the following link: https://install.wled.me/ 2. Connect the ESP to your PC via USB cable Connect the ESP to your PC using a USB cable. We will install the latest version of … Read more
【Click on the top「Blue Text」 to follow DF Maker Community, let’s become technical aesthetics together】 Ants are amazing creatures that require very few resources but can accomplish a lot. Generally speaking, many six-legged robots require up to three servos per leg, which totals 18 servos, consuming a lot of energy and conflicting with the size … Read more
Click the blue text above to follow us Previously, we used OV2640 to capture high-definition photos (ESP32-S3 captures 1600X1200 resolution photos) and displayed JPG images on an LCD driven by ST7789 (ESP32-S3 displays JPG and PNG images on LCD (based on MicroPython)). Now we combine the two to allow the LCD to display the images … Read more
Click “Read the original text” for a better experience GPIO Pins Not Recommended for Use Used for communication with the flash/PSRAM inside the package, not recommended for other purposes. Pin Function GPIO 26 SPICS1 GPIO 27 SPIHD GPIO 28 SPIWP GPIO 29 SPICS0 GPIO 30 SPICLK GPIO 31 SPIQ GPIO 32 SPID Restricted GPIO Pins … Read more