A schematic diagram of a Bluetooth speaker found on the InternetNote:1. The resistors, capacitors, and diodes marked NC in the schematic diagram all indicate components that are not soldered on the PC...
The traffic light control system is designed using the 61 board and the traffic light module V3.0. The following functions are required: 1. The system has two states, the setting state and the display...
NTC thermistor temperature measurement, using the half-table lookup method, the microcontroller is stc12c5410ad with 10-bit AD, the table data ntctab[]=1024*Rm/(Rm+Rntc), the displayed result is 00, p...
Can bus, people who are engaged in automotive electronics should be very familiar with it. It is widely used in automobiles. Its stage name is control local area network. (Please search Baidu for the ...
Inverter power supply is called "tomorrow's power supply". Its application in welding equipment has brought revolutionary changes to the development of welding equipment. First, the inverter welding p...
The compiler I use is IAR FOR ARM. The chip I use is STM32. It's probably like this. The startup code changes the entry function. Reset_Handler LDR R0, =SystemInit ;BLX R0 LDR R0, =main ;Assembly labe...
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]
Analogue and Mixed Signal
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