In the first evaluation, the environment was built and the SoC - Blinky example was tested. This time, we will learn about the reading and writing of the Bluetooth BLE LED light service.Bluetooth BLE ...
When I use Cadence to make a circuit board, the diode device in the schematic diagram has 2 pins, but I add a 3-pin package to it, and then I can't pull this package into the Allegro PCB. How can I se...
[b]Python implements stack[/b][p=26, null, left][color=rgb(51, 51, 51)][font=-apple-system, BlinkMacSystemFont, "]A stack is a last-in-first-out data structure. It works like a bunch of cars queuing u...
Mobile 6, a program displayed at the front hides the OK and × buttons, but the × button often still appears. After clicking other programs in the start menu, it disappears. I suspect that it was left ...
Q: When I cleared the interrupt as the last instruction in the ISR, the ISR code is called immediately upon exit half the time. Is there a possibility of race condition ? Answer: The core (Cortex-M3) ...
I want to make an ultrasonic receiving circuit, but the waveform from the comparator is very strange. After amplification, the waveform is normal. I want to ask what is the reason...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
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