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DS18B20 is a single bus digital temperature sensor with a test temperature range of -55℃-125℃. It has the characteristics of small size, low hardware cost, strong anti-interference ability and high p...[Details]
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STC 1T series MCU is the most suitable MCU IC for lighting dimming products so far. However, STC is criticized in the market. At least in some MCU forums I often visit and some QQ groups about MCU and...[Details]
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This paper adopts a combination of software and hardware design method, uses the area equivalence method, and implements SPWM control of the experimental inverter system based on PIC microcontroller....[Details]
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On November 8, Li Donglin, deputy to the National People's Congress, secretary of the Party Committee and chairman of the company, met with Zeng Yuqun, chairman of Contemporary Amperex Technology C...[Details]
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The European New Car Assessment Program (Euro NCAP) updates radar standards with the goal of improving driver assistance features in new cars. NCAP standards vary by region; NCAP in the United Stat...[Details]
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The DC current error of the multimeter is large, and the nominal ranges are all positive errors (negative errors) of the same proportion. Troubleshooting Cause: For positive error: ① The resistance...[Details]
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#include
#define uint unsigned int
#define uchar unsigned char
#define psbset DDRB |= (1 4)
#define psbset PORTB |= (1 4)
#define psbclr PORTB &=~(1 4)
#define rsout DD...[Details]
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The list of "Top 100 Software and Information Technology Service Comprehensive Competitiveness Enterprises in 2019" was released, which is the list of China's top 100 software companies in 2019. Huaw...[Details]
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On September 12, at the invitation of Zhang Kuiyu, deputy director of the Municipal Science and Technology Bureau, Tong Jun, deputy general manager of Tianjin Binhai Solar Thermal Power Generation ...[Details]
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LED pulse drive circuit using C-MOS NAND gate
Function of the circuit
If the LED is used for direct current lighting, the forward bias current can only be below 10MA, which allows for large light...[Details]
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#define uchar unsigned char //define for easy use
#define uint unsigned int
#define ulong unsigned long
#include //Include a header file for a 52 standard kernel
sbit K1= P3^1;
sbi...[Details]
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Sina Digital News on the morning of May 13th, vivo announced today through Weibo that it will launch its first active noise-cancelling headset, vivo TWS 2, on May 20th. The Weibo video has a...[Details]
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Application Background
Rail transit is responsible for the vast majority of passenger and freight transportation, but with the rapid development of the national economy, the contradiction ...[Details]
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The P3 port of the AT89S52 microcontroller has a second function, as shown below: P3.0 RXD (serial interface input) P3.1 TXD (serial interface output) P3.2 INT0 (external interrupt 0 input) P3.3 INT1...[Details]
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First, open the schematic diagram of the baseboard and find the button information:
Four buttons can be found:
You can see that the pins corresponding to the four buttons are EINT1,...[Details]
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