LCD configuration has DE mode and HV mode, which can be set by hardware on LCD driver chip. But in the device tree code of Linux kernel driver, how to distinguish DE mode and HV line field synchroniza...
It seems that I have gone through a lot of trouble to find a suitable library file.
The components are shown in the figure below (the left side is the receiving module and the right side is the sendin...
Due to its small size and light weight, semiconductor lasers (LDs) are increasingly widely used in information, communication, medical and other fields, and are combined with electronic devices to ach...
If the voltage is input from point A and the circuit is disconnected and connected through an LED, what is the voltage at point B? I am a little confused...
Is there any level conversion chip that can directly convert 8-way 24V signal to 5V or 3.3V? I don't want to use optocoupler because it takes up too much space....
introduction
The controller area network (CAN) is a multi-host local network launched by the German BOSCH company in the 1980s for modern automotive applications. Due to the advantages of high re...[Details]
Author: Liu Wei
On November 2, 2023, the Ministry of Industry and Information Technology published the "Guiding Opinions on the Development of Humanoid Innovation" on its official website,...[Details]
Magnetic flap level gauges make up for the defects of poor indication clarity and easy breakage of glass plate (tube) level gauges. They have the advantages of novel indication, eye-catching displa...[Details]
Figure 6. Schematic diagram of Class AB grounded center-mounted headphones
Class G amplifiers typically use multiple supply voltages to achieve higher efficiency than Class AB amplifiers. ...[Details]
This is an enhanced version of a simple garage/shed alarm. The entry and exit delays have been increased to about 30 seconds - I have added a timed siren cut out and automatic reset. I have a...[Details]
In recent years, driven by the wave of intelligent electrification in the automotive industry, HUD (Head Up Display) has ushered in rapid growth. Relevant statistics show that the installation rate o...[Details]
The Android version of Google's Gboard input method has a new feature that allows existing Emoji expressions to be used as elements, combining two expressions into a new Emoji sticker. Google calls t...[Details]
When it comes to LCR meters, many people tend to confuse them with multimeters. So what is the difference between the two? LCR meters, as the name implies, are special measuring tools used to measure...[Details]
For a long time, CATL has been the main power battery supplier for Geely Auto worldwide. Geely's existing new energy models, Emgrand EV, Emgrand PHEV, and Emgrand GSe, all use batteries from CATL. No...[Details]
China Energy Storage Network:
The year 2016 that just passed is regarded by the industry as the first year of the development of energy internet. While most people are still stuck in the huge...[Details]
1. Application of button and text controls
1. Usage of format control function .Format();
CString stremp1; //Define string
stremp1.Format("%6.2f",(temp1)); //Display stremp1 in the form of "%...[Details]
Looking at the global mobile phone market, mobile phones of various styles and prices have made this market saturated. However, according to research data from Displaysearch, the global mobile phone m...[Details]
What is eCall
The basic principle of eCall can be described as follows: when a car accident occurs, the vehicle system automatically dials the emergency number and sends the accident-related i...[Details]
The PT100 temperature sensor is a temperature measurement device widely used in the industrial field. Its working principle is based on the characteristics of platinum resistance changing with temp...[Details]
Linux and Android
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