When a call ends, the caller or the called party hangs up, and the switch sends a busy signal to the other party. After a period of time, the busy signal needs to be cancelled. How can I use a single-...
What we are involved in is the use of GPIO. You may have some impression of the demonstration of lighting an LED we talked about last time. But last time we directly called the code generated by the s...
Please help me find out what is wrong with the circuit. The speaker can play sound when it is directly connected to the voice IC, but there is no sound after it is connected to the power amplifier. Th...
Hardware platform: STM32F746G-DISC
Development platform: KEIL_5.29
I will not introduce the detailed structure of MP3 files here , but only introduce how to use the MP3 decoding library. If you need t...
1. There are signals in and out, and there may be a clk. When in changes from low level to high level, out should output high level immediately. No matter how in pin changes, out should not change. Ho...
The 48th Institute of China Electronics Technology Group Corporation, located in Tianxin District, Changsha, is the largest supplier of solar cell manufacturing equipment in China. The "Photovoltai...[Details]
On April 7, a signing ceremony was held at the Xiamen University Centennial Anniversary Global Alumni Investment Conference, where 32 Xiamen University alumni investment projects were signed on the s...[Details]
SATA and USB3.0 are re-timing serial communication interfaces. Their receiver tests are different from traditional receiver tests and have higher requirements on the instruments. The instruments are ...[Details]
introduction
The paper transmission control system designed in this paper is designed to use the control network composed of American AB inverter and Siemens PLC to complete the paper machine
e...[Details]
Common rechargeable batteries include nickel-metal hydride batteries, nickel-cadmium batteries, lithium batteries and polymer batteries. Among them, lithium batteries are widely used due to their h...[Details]
Sodium-ion battery technology company Peak Energy has emerged from obscurity with $10 million in funding and a management team that includes former Northvolt, Tesla, Enovix and SunP...[Details]
Huawei aims to surpass Ericsson in wireless base stations, Samsung and Apple in mobile phones, and Google and Amazon in smart homes. In the past few years, Huawei has tried to challenge the "industry...[Details]
It mainly bears radial load and can bear a small amount of axial load.
The difference between spherical roller bearings and deep groove ball bearings:
1. The deep groove ball bearing has ...[Details]
//12864 single chip display program with character type
#include reg52.h
#include math.h
void lcd_init(void);
void clr_lcd(void);
void send_com(unsigned char cmd);
...[Details]
The high-resistance box is equipped with a digital milliammeter (microammeter) to output voltage. The withstand voltage tester uses a high-resistance box with a digital milliammeter (digital microamme...[Details]
RedCap: New Cellular IoT Technology in the 5G Era Over the years, the cellular network industry has introduced a variety of wireless technologies to facilitate the connection of IoT devices ...[Details]
According to 9To5Mac, citing supply chain reports, LG Display has stopped producing LCD iPhone screens and has given up hope of future production. In addition, LG Display said it may stop produ...[Details]
According to Taiwan Economic Daily, the industry pointed out that the mature process has been in serious shortage for the past three years, causing many supply chain shipment problems. However, TSMC ...[Details]
Tesla has always emphasized the power of its pure vision autonomous driving solution. When humans perceive and understand the world, 70%-80% of the data is processed through vision. This at least m...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
