As the title says, the program ran successfully for several times at first, but then I don't know where I changed it. When setting the write data address, the return value is 0x05.It has been wrong al...
Connecting MOS tubes in parallel can increase the current capacity. What characteristics of MOS tubes should be paid attention to when connecting MOS tubes in parallel, such as the turn-on and turn-of...
I recently made a portable device that needs to boost the voltage from 2 strings of 7.4V lithium batteries to 24V through a boost chip. The 24V needs to drive a solenoid valve. The maximum output of t...
According to my understanding, for a two-layer board, the copper on both sides is in the same network as GND, and VCC is not connected to the copper. What is the situation? How to lay copper on the in...
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[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]
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]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[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]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[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]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]