The input waveform in front of C44 is a sine wave of about tens to hundreds of mV. After being amplified by the first op amp, it enters the second op amp U7B, where it is still amplified and then conv...
PCB modular layout ideasIn the face of today's electronic products with increasingly higher hardware platform integration and increasingly complex systems, PCB layout should have a modular mindset, re...
Has anyone used Maxim's max30003 to detect ECG signals?
I use nRF52832 to drive max30003 SPI communication is normal, and the verification is correct by reading the values of other registers that have...
Because of a small problem, it took a long time to record it.
stm32 multiple adc cores use timer trigger, data is only updated once in dma mode
HAL_ADC_ConvCpltCallback also only enters once
ADC is se...
1. Circuit Function Overview
The infrared diode sensing circuit can realize that when the hand is close to the infrared transmitting tube and the infrared receiving tube, the buzzer sounds and the L...
On the morning of January 15, leaders of relevant units of the Ethiopian Hunan Industrial Park and Economic Development Zone led a delegation of more than 30 Africans to visit Naipun. The Ethiopian...[Details]
First, let's introduce the concept of cache. The role of cache: Due to the limitation of program access, a high-speed, relatively small memory is set between the main memory and the general regis...[Details]
Microsoft's cloud computing business has reportedly been complained by three European competitors, who claim that Microsoft has undermined fair competition in the cloud computing services market and ...[Details]
Beijing time, March 22 morning news, Apple does not allow dating app developers to use non-Apple payment methods in the Netherlands, the Netherlands is dissatisfied, the two sides have a disput...[Details]
Necessity of UPS battery maintenance
In an uninterruptible power supply (UPS) system, it can be said that the battery is the backbone of the system. A UPS without a battery can only be called a vol...[Details]
0 Introduction
With the advancement of science and technology, single-chip microcomputers and related electronic technologies have developed rapidly, and their application areas have been conti...[Details]
With the development of large-scale extreme manufacturing technology, the shapes of large workpieces are becoming more and more complex, and the precision requirements are becoming higher and higher. ...[Details]
This is a simple serial communication program that uses query to send, and can send back the data received by the serial port immediately. I hope it will be useful for beginners.
#include reg52.h
#d...[Details]
On the afternoon of May 25, smartphone brand realme held the realme Heartbeat 618 press conference, bringing new products such as the realme GT Neo Flash Edition and the realme Q3 Pro Carnival ...[Details]
Vehicle navigation is a subject that integrates technologies from the fields of automobiles, computers, communications, transportation, and systems science. It has always been a research focus of...[Details]
As an important component of electric vehicles, power batteries have very high requirements for temperature, safety and performance. Therefore, the assembly of power batteries has also become the f...[Details]
We still use STC's 8051 microcontroller. This code is used to make a timer, which is displayed in real time through a digital tube. Because there are 6 digital tubes on the board, you can set the hou...[Details]
In the post-epidemic era, the domestic robot market has developed rapidly. At the same time, the international robotics field has maintained a positive development momentum. In February 2021, which...[Details]
At present, the endurance performance of traditional electric vehicle manufacturers has not surpassed Tesla, which is due to the selection of electric vehicle platforms. Electric vehicles developed b...[Details]
Matter is a new connection standard for smart homes, providing a unified connection protocol based on IP. With Matter, smart door locks, smart speakers, smart kettles, air conditioners, TVs, curtains...[Details]
FPGA/CPLD
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