I like embedded systems more, but I don't work in this field. I can only learn by myself (protocol stack) as a hobby. Now I am familiar with UCOS2 system, can read source code, and understand task mec...
[code]UART3Init(); RS485_SendByte(0x00); Delay2(10); hh[0]=0x66; MYDMA_Config(DMA1_Channel3,(u32)&USART3->DR,(u32)hh,1);//DMA1 channel 3, peripheral is serial port 3, memory is hh, length 1 USART3->CR...
I would like to ask for help from all the experts. I am recently debugging a board and need to export the data of an array of 1000 in the program. However, I have searched for a long time and cannot f...
The ism frequency band in Europe and North America is mainly 900M. I wonder if anyone has considered or made a 900 zigbee module? Please introduce it....
Original title: ESP8266 Guide: Role, Function and Development Approach [url]http://makerpro.cc/2015/08/esp8266-guideline/[/url] [p=26, null, left][color=rgb(51 , 51, 51)][font=Raleway, Arial, sans-ser...
This is my first post on ee. I hope to share and learn with you~ I received the express delivery on the weekend. During that time, the forum left my phone number wrong. This incident made me meet the ...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[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]
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]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[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]
ARM Technology
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