The life of lithium batteries varies depending on the type. Theoretically, the average life of lithium batteries is more than 500 times. If we charge them once every three days, the theoretical life o...
[i=s] This post was last edited by Rambo on 2019-5-14 14:23 [/i] [align=left][color=#000][font="][size=3]Complementary filtering principle: [/size][/font][/color][/align][align=left][color=#000][font=...
I recently used a serial port screen. The voltage of the serial port screen is 5V, so the voltage of the serial port communication is also 5V. My main control is powered by 3.3V. I originally wanted t...
I bought an ESP8266MOD module, but I don't know how to write the program to it. This module has a USB interface. I want to use ESP8266_RTOS_SDK to develop the program...
Recently, we received an Agilent/Keysight MSO9104A oscilloscope from a customer. The customer described that the instrument was abnormal when it started up. Let's take a look at the cause of the dama...[Details]
Several advances have made artificial intelligence (AI) one of the most exciting technologies in the past decade. In 2012, Geoffrey Everest Hinton demonstrated his generalized back-propagation neural...[Details]
In September last year, under the promotion of the Ministry of Industry and Information Technology and other departments, the direct blockade of giant platforms such as Tencent, Alibaba, and By...[Details]
introduction With the development of the economy, the non-stop toll collection system (ETC) has quietly emerged in our country. The non-stop toll collection system is mainly composed of three major s...[Details]
Earlier, according to Jiwei.com, California Governor Gavin Newsom said last week that California will receive a refund of $247 million under an important protective mask transaction. The money was or...[Details]
How does a diode clamp work?
The signal will lose the DC component after passing through the RC coupling circuit, and the top or bottom of the signal waveform will be clamped at a predetermined DC ...[Details]
On June 9, the United States began to suppress Huawei in May last year, banning Huawei from participating in its 5G construction on the grounds of national security, and requiring its allies t...[Details]
The following is the source code of the simple waveform generator of 51 single-chip microcomputer: #include AT89X52.h #include math.h #define ADDR1 0x2c //MAX5820LEUA sbit key_sin=P1^0; sbit ke...[Details]
Signal testing is very important for laser ranging or laser radar products. In principle, the flight time difference of the light beam is used for calculation. However, for high-power pump lasers, th...[Details]
When debugging, first observe whether the resistor to be tested works normally. Insert a voltage probe at the changing end of the resistor. For specific methods, select the voltage probe (Voltage) i...[Details]
When Tesla achieved chip freedom, in this important field where car companies are easily strangled by outsiders, a carnival of "self-developed chips" has been set off one after another. The discussio...[Details]
Dr. Wang Chenglu, President of Huawei's Consumer Business Software Department, recently revealed that the adaptation work of the mobile version of Hongmeng OS 2.0 is progressing well, the resea...[Details]
The microcontroller source program is as follows: /* RFINT cannot use PA1, change the board to PC6 */ /* Includes ------------------------------------------------------------------*/ #define MAIN_C...[Details]
1. Allocation of S3C2440 address space
1. The memory controller of s3c2440A has the following features:
l Big and small endian (selected by software)
l Address space: 128M bytes per bank (1G by...[Details]
According to foreign media reports, recently, the British consumer rights organization "Which?" filed an antitrust lawsuit against Apple on behalf of approximately 40 million iCloud users, accusing...[Details]