1. Module Overview Project Name Detailed Parameters Remarks Hardware Power Supply DC 10V-24V @ No Load 0.1A Protection Current 1.5A Output DQ 8-channel solid-state relay output, response time less than 5ms Protection Current 0.7A Input DI 8-channel opto-isolated input, compatible with NPN sensors Input AI 4-channel 24-bit ADC high-precision analog signal acquisition, range 3300mV ADS1220 … Read more
So far, the project has integrated LVGL with STM32F407 and also supports touch screens using STM32F407 + SPI for resistive touch screens. Therefore, integrating the touch screen with LVGL is a natural progression. You can refer to the official documentation at https://docs.lvgl.io/master/details/main-modules/indev/overview.html#indev-creation. It is simpler to refer to an official example template, especially for touch … Read more
In embedded systems, the clock is the “pulse” of the microcontroller (MCU) — every data transfer, instruction execution, and peripheral operation relies on the precise synchronization of clock signals. The “clock tree” is an intelligent system that manages these “pulses”; it resembles a large tree with distinct branches, starting from the root of the original … Read more
Background The core algorithm of the product I have been researching these days is the phase difference detection of the sine signals transmitted and received. On the STM32F407 processor, high-speed sampling of the received and transmitted signals is performed through DMA+SPI communication. An algorithm is designed to calculate the phase difference between the received and … Read more
“The clock frequency is the core of the microcontroller, affecting peripheral communication, timing, and other functions. Simulation tools can observe its frequency in real-time, aiding in configuration verification and troubleshooting. This article introduces four simple and convenient methods for testing clock frequencies in the Keil-MDK environment, using the STM32F407 as an example to illustrate the … Read more
Tap the thumbs up for good fortune, follow us to stay on track, when you see Old Chen discussing chips, the industry, and humanity, may we meet like the Dabaosod honey, see you every day!After discussing the “working principles of TFT-TCON chips”, “disassembly analysis principles of TFT-LCD screens”, “the history of TFT-LCD screen interface protocols”, … Read more
Click the blue text Follow us 1. Overview Ethernet refers to the baseband local area network specification created by Xerox and jointly developed by Xerox, Intel, and DEC. Ethernet uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) technology and operates at a rate of 10M/S over various types of cables. Ethernet is similar to … Read more
This is the 145th content shared by the platform. The background of the development of Analog-to-Digital Converters (ADC) mainly stems from the rapid advancement of digital technology. In the early days, electronic systems were mostly based on analog signal processing. However, with the rise of computer technology and digital signal processing theory, there was a … Read more
This is the 169th content shared by the platform. GPIO (General Purpose Input/Output) is a versatile interface used to connect microcontrollers, embedded systems, or other electronic devices to interact with the external world.GPIO is a highly flexible interface that can perform various functions such as digital input, digital output, analog input, and analog output. In … Read more