MCU is 430F149, compile environment is IAR, main clock frequency is 800KHz, internal DCO. LED-P2.0, KEY1-P1.0, KEY2-P1.1. Tested and available.
/***********************************************Program ...
[i=s] This post was last edited by btty038 on 2018-12-14 16:34 [/i]Power "RF Microwave Load Resistance" Not an Attenuator Frequency DC~10GHz Share selection information and manufacturers...
Engineering Applications of Random Signal Analysis : https://training.eeworld.com.cn/course/4242Random signals, also known as uncertain signals, refer to signals that cannot be expressed by a definite...
In order to avoid confusion and trouble caused by different radio frequency usage standards in different countries, most countries in the world abide by the standards of the International Telecommunic...
【Abstract】 In order to design a small-sized, simple-structured, low-cost ultra-wideband high-low frequency nested antenna (high frequency: 1 427-2 690 MHz, low frequency 690-960 MHz), this paper first...
Recently, Han's Laser predicted that the company's net profit for the whole year of 2019 is expected to be 773 million yuan to 945 million yuan, a year-on-year decrease of 45% to 55%, and the decline...[Details]
China Energy Storage Network:
According to the latest report jointly released by the International Energy Agency and other institutions, China's contribution to the reduction of global energy...[Details]
1. Use CUBEMX to configure automatic code generation: ①Add DMA channel of serial port ②Use the serial port global interrupt: The other configurations will not be described in detail. After t...[Details]
Vehicle restriction is an effective measure to solve urban traffic congestion. It has been proven in practice and its effect has been recognized by the society. Most cities use the scheme of restri...[Details]
Switching power supplies
have the advantages of small size, light weight, and high efficiency, and are widely used in various fields. Due to
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switching power...[Details]
/*============================================================================= Access the on-chip EEPROM of PIC16F877A and run the program: Begin Test - LED0 is on, EEPROM Test OK...[Details]
The porting of serial port xmodem is relatively simple, just refer to the ymodem protocol. Experimental environment: Linux Ubuntu 9.10 (from the virtual machine provided by Professor Wei Dongshan) D...[Details]
On August 9, Huawei held its 2019 Developer Conference in Dongguan. Huawei Consumer Business CEO Yu Chengdong pointed out that under the influence of the US ban, smartphone sales in the second quarte...[Details]
According to foreign media reports, Ford recently announced a patent, hoping to add sensors to vehicles to read roadside billboards and send data to the car's dashboard screen to display advertising ...[Details]
On July 6, Xuji Electric released its 2020 semi-annual performance forecast. In the first half of 2020, Xuji Electric's net profit attributable to shareholders of listed companies was RMB 345 million...[Details]
The reliability (lifespan) of LED lighting fixtures depends largely on the heat dissipation level, so improving the heat dissipation level is one of the key technologies. It mainly solves the pro...[Details]
Schematic diagram of the digital tube circuit:
TRS and TMS use the JTAG port, so the normal IO function cannot be used during debugging. It is necessary to cancel the JTAG mode after the ...[Details]
According to Korean media thelec, the U.S. Court of Appeals for the Ninth Circuit recently dismissed a class action lawsuit filed by the law firm Hagens Berman, which claimed that leading DRAM compan...[Details]
Circuit Principle of Automatic Fire Extinguishing Device
The circuit working principle of the device is shown in the figure below. JS is a very thin metal wire, which is wound around the protecte...[Details]
Combined with the above situation, this paper summarizes a set of methods for tuning the parameters of the PID algorithm in a certain project. The PID adjustment method is a commonly used and effecti...[Details]