Infrared emission, blocked by an object, reflected reception, output signal to control the relay, and then control the optical drive. Please help me draw the circuit diagram~~~...
Use ADC0832, high-precision potentiometer JC-1A development board to design a voltmeter that can measure DC voltage. Input the measured signal 0-20V, display accuracy to 0.01V. The voltage error measu...
The company has a project that uses the ST7 chip, but the only version that can be downloaded is the Cosmic 4K version. I heard that it was possible to apply for the 16K version before, but now it is ...
The LTC4412 controls an external P-channel MOSFET to create a near-ideal diode function for power switching or load sharing. This enables efficient ORing of multiple power supplies to extend battery l...
When talking about Chinese chips, Ni Guangnan is indispensable. Let’s learn more about the relevant content with the embedded editor.
Since he co-founded Lenovo in 1985, Ni Guangnan has been s...[Details]
ZTE
The communication embargo incident has impacted the communication industry and sounded the alarm for the semiconductor industry. Let's follow the embedded editor to learn more about the r...[Details]
Profit growth of 85% in 2017, target revenue of 12.5 billion yuan in 2018: The company released its 2017 annual report, achieving revenue of 8.886 billion yuan, a year-on-year increase of 48.01%; prof...[Details]
This part of the code in the void SystemClock_Config(void) function in the main file generated by stm32cubemx RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; This bug occurs, and the f...[Details]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[Details]
In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
I used the bit definition in my 51 program: bit flag. After defining it this way, I ran the program and downloaded it to the circuit board. I found that the flag was not the value I set, which led to...[Details]
The Vatican Secret Archives is one of the world's greatest historical collections, but many of its documents have never been transcribed. Recently, a project called Codice Ratio used a
combination...[Details]
I encountered a problem when debugging the STM32 system clock setting: TIM2 timing 1Ms, TIM2 interrupt service function time++, LED state changes when time=100. After the program runs, I found that t...[Details]
Note: This STM32 microcontroller is the STM32F103 series. The ADC of Stm32 has DMA function. This is beyond doubt and is what we use most! However, if we want to sample a signal (such as a pulse sign...[Details]
Interrupts and timers implement a 24-hour clock. The program is as follows: #include reg52.h #define PORTLEN P0 sbit bit_select = P2^0; sbit seg_select = P2^1; unsigned char src = {0x3f,0x06,0...[Details]
Microcontroller programming: Find the maximum number and store it in the BIG unit. Assume that the internal RAM stores a group of unsigned numbers starting from the LIST unit, with the number of data...[Details]
;The hardware connection circuit of the 51 single-chip microcomputer is as follows: ;P1.3 and P1.4 are each connected to a button; ;P0.0 and P0.3 are each connected to a light-emitting diode; ;P2.0~P...[Details]
Industrial Control Electronics
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