[size=4][color=#000000][backcolor=white] In actual applications, when CH340 is used with other ICs such as MCU, if one of the two devices directly connected by the serial port does not need power to w...
I am using the Bluetooth module HC-05. When I send an AT command, it returns ERROR(0). The baud rate is 38400. The program is as follows: USART_OUT(0X41); //A USART_OUT(0X54); //T USART_OUT(0X0D); USA...
In Chapter 6, it is said that the function rt_hw_stack_init is defined in cpuport.c, but it does not mention where it is declared. However, this function is called in the rtthread.c file. This content...
.TEXT Usage
I always read the instruction manual first, and look at the grammar before reading anything else. I think it is probably the meaning of define in C language.Syntax: .text name=string liter...
First, here's a crappy picture to cover the postThe development board I received yesterday
An RSL10-SENSE-DB-GEVK, which is quite small
Powered by a button battery, with a bunch of sensors on board
A ...
ljj3166onsemi and Avnet IoT Innovation Design Competition
STM32 starts to support VCP+MSC+HID modehttps://github.com/micropython/micropython/commit/cb84e22ac6b1356986f63f5b6db95493da81fa5f
https://github.com/micropython/micropython/commit/6705767da1f7dba7a04...
Amid the fierce confrontation in the Sino-US trade war, the Japan-US trade war in the last century has been re-examined as a major example; and the recent Japan-South Korea trade dispute has once aga...[Details]
Since the outbreak of the novel coronavirus pneumonia epidemic, the Northeast Branch of State Grid Corporation of China has conscientiously implemented relevant requirements to ensure the safe and ...[Details]
The following takes Nanjing Xinlian's EE1643C as an example to introduce the use of the signal generator in detail:
:
1. Turn on the power and the switch indicator light will appear.
2. Choose the a...[Details]
(1) The analog DC voltage range is composed of a series voltage divider resistor and a parallel shunt resistor, so its input resistance is generally one order of magnitude lower than that of a digita...[Details]
introduction:
1. With the increasing production capacity of a single line, how can we achieve both speed and precision?
2. How to meet the requirement of ultra-large format typesettin...[Details]
This chapter brings you the power cord consistency test. Before we begin testing, it should be noted that most AC-DC power supplies are designed to work with an AC wall outlet. As such, they...[Details]
There are two models of single chip microcomputers. The main difference is the capacity. The at89c51 supports a maximum of 4KB of program, while the at89c52 supports a maximum of 8KB of program. AT89...[Details]
Reasonable selection and correct installation of split electromagnetic flowmeters are very important to ensure measurement accuracy and extend the service life of the instrument. The following is a b...[Details]
1. Digital multimeter is a powerful tool for electronic measurement. It can be used to measure the continuity of circuits in daily life. Multimeters are divided into digital multimeters and pointer...[Details]
In the context of global energy shortage and increasing environmental protection requirements, countries around the world are vigorously developing
green energy-saving
lighting.
LED ...[Details]
In the future, high-voltage GaN devices will have greater development space in the industrial and energy application markets.
氮化镓器件是第三代半导体中的典型代表,具有极快的开关速度,能够显著提升功率变换器的性能,受到电源工程师的青睐。同...[Details]
Bosch Venture Capital invests in AutoCore.ai High-performance automotive middleware is accelerating development Bosch Venture Capital invests in Chinese automotive middleware company for the firs...[Details]
1 Circuit Design For wireless charging circuit, there are three main circuits: oscillation circuit, amplifier circuit and wireless receiving circuit. Here we mainly discuss the wireless charging ...[Details]
1. In order to achieve quasi-3-state, the P0 port of 51 single-chip microcomputer adopts OC output, that is, collector floating output, also called totem pole output. This circuit structure has only ...[Details]
Customized production of aviation-grade high-purity vanadium materials, building a vanadium battery energy storage industry chain... Recently, Chengde Vanadium Titanium New Materials Co., Ltd.'s succe...[Details]