The so-called spread spectrum communication can be simply described as follows: "Spread spectrum communication technology is a way of information transmission, the bandwidth occupied by the signal is ...
On December 7, 2005, ZTE officially launched the first domestically produced "lead-free mobile phone", and 300,000 units were exported to the UK to supply Hutchison 3G, which had a great impact on the...
The most important part of a wireless communication system is the antenna. Although the base station antenna accounts for only 2% to 4% of the total system cost, its importance is far more than that. ...
The book says that dsp28335 has 4G data space, but the external interface has only 20 address lines, the maximum addressable data space is 1M, and 32 of them are used to transmit data; and the memory ...
[b][color=#5E7384]This content is originally created by EEWORLD forum user [size=3]tiankai001[/size]. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and...
Translated from EEtimes Arduino is an open source electronics platform based on a simplified hardware and software management system. It includes hardware (various models of Arduino boards) and sof...[Details]
Those who are familiar with oscilloscopes may have had this confusion: there are two types of input impedance: 1MΩ and 50Ω. How should we choose? 1. Transmission Line To explain the origin of...[Details]
China Energy Storage Network News:
Silicon wafer "newcomer" Shuangliang Energy Saving (600481.SH) once again spent a large amount of money to purchase silicon materials.
On November ...[Details]
Q1: How to perform periodic maintenance on robots?
1. Regular maintenance of the robot can extend the service life of the robot. The maintenance cycle can be divided into three months, six mon...[Details]
Every processor has external interrupts, and STM32 is no exception. All ports of STM32 have external interrupt capabilities. In order to use the external interrupt line, the interrupt must be configur...[Details]
According to a paper published in the journal "Materials" on the 16th, engineers from the Massachusetts Institute of Technology in the United States designed an intelligent biologically derived sutur...[Details]
The light information of the object under test passes through the optical system and forms an optical image on the photosensitive element of the CCD. The CCD device converts the light information o...[Details]
Recently, Buycar learned that Tesla's third-generation home charging pile has upgraded its functions and released the 21.36.4 firmware version, which adds the "charging permission control" firmware f...[Details]
// Fuse bits F7 DC F9 FF // Function: pb1 outputs high and low level with a time interval of one second #include iom88v.h #include macros.h int blink_sign = 0; void timer0_init(void) { ...[Details]
The US has made Huawei a "killer chess piece" and has done everything it can to strangle it to death, but Trump may have underestimated Huawei's "potential". Ren Zhengfei seems very calm. In a recent...[Details]
LED light strip production has a low entry threshold, so many people have started this project. However, experienced people still have ways to identify. The LED light strips produced by regular man...[Details]
The appearance and pin functions of the LCL331 multi-bit display combination device are shown in the figure.
Each display assembly of LCL331 includes: decade counter - register - seven-segment...[Details]
Tesla recently released an OTA upgrade package for firmware version V12.5.4.1, claiming that it had upgraded the vehicle's smart summon function, adding a remote driving function to it, allowing ca...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
