This is a reposted article, which discusses the various parts of the 485 bus in detail. Some netizens have raised doubts about the reference ground interconnection of the 485 bus, so I will post a rel...
I use STM32 to write a matrix keyboard program. I have posted several posts before, but I have never finished it.Circuit Diagram:Code:
/****************************************************************...
Hardware Connection:
LCD1602 is a common LCD display screen, which displays 16 characters × 2 lines, that is, it can only display 32 characters at most. The 1602 I have is driven by 5V . After bold te...
[i=s]This post was last edited by qwqwqw2088 on 2020-11-25 08:09[/i]In a battery-powered system, power consumption requirements, power supply voltage monitoring, and system reset circuit reliability p...
Improvements in 5G radio signal processing could save $193 million per U.S. fixed wireless access mmWave O-RAN networkMobile Experts study commissioned by AccelerComm shows enhanced LDPC IP can reduce...
In the smart electric era, as the number of ECUs increases, how to simplify the complexity and use several or even one "brain" to control the ECUs of the entire vehicle has become the direction of ch...[Details]
Compared with MSP430 (F149), MSP430 (F5529) has more powerful functions.
UCS Introduction
The UCS of the MSP430F5XX/MSP430F6XX series devices contains five clock sources, namely: XT1CLK, VLOCLK, REF...[Details]
On the internal test page of China Unicom's "5G Pioneer Plan", the prices of 5G mobile phone products from several manufacturers were exposed, including the OPPO Reno 5G version. The 5G versio...[Details]
void delay() {; ;} void delay1ms ( uint z ) { uint x, y; for ( x = z; x 0; x -- ) for ( y = 110; y 0; y -- ); } I2C startup: falling edge on SDA while SCL is high void start_I2C ( ) / { sda =...[Details]
Standardization: 1. Standardization of icons
2. Operation: Write & Read
3. xx is the variable name, w is write, the value in brackets is the default value, r is read
...[Details]
Recently, Japanese display company JDI released a third-party investigation report on a financial corruption case, showing that JDI had committed financial fraud from the March-June 2014 fiscal quart...[Details]
In recent years, smartphones have integrated more and more functions, but in terms of basic audio amplification applications, there is still room for further improvement in terms of performance opt...[Details]
Which drugs can beat cancer? At what dose can we achieve the desired effect without side effects? Above what limit does an effective drug become toxic? Today, these questions can only be answered thr...[Details]
Today, nearly 400 wind farms in Ireland supply more than 35% of the island's electricity. This green energy is transmitted through the grid to farms, businesses and homes, helping utilities reduce gr...[Details]
On March 11, Tianjin Prin released its 2020 annual report, saying that the company achieved operating income of 458 million yuan, a year-on-year increase of 9.48%; net profit attributable to sharehol...[Details]
Interface circuit between AT89S52 and RS -232 Figure 5 Interface circuit between AT89S52 and RS-232 The microcontroller uses AT89S52, and the RS232 chip uses MAX232. ...[Details]
Measurement devices used in industrial environments often require isolation to ensure user and system safety, as well as to ensure accurate measurements in the presence of high common-mode voltages....[Details]
introduction A/D converters are often used in the design of intelligent instruments. Among the commonly used A/D converters, 7135 is the most widely used. It has 41/2-bit A/D conversion accuracy, str...[Details]
China Energy Storage Network News:
At the ongoing Berlin International Consumer Electronics Show, China's Gree launched the G-IEMS local energy Internet system to the world, providing solutio...[Details]
Abstract: This paper introduces the method of equivalent sampling of high-frequency signals (1MHz ~ 80MHz) based on the precision clock generation circuit of the microcontroller system, and designs an...[Details]