19 common PCB circuit board printing problems
1. The board is easy to stick during printing, or the image is unclear.
2. The line image on the template is curved and uneven like an earthworm.
3. Wh...
The screen of the F746-DK board in my hand is broken. Use USB-HS to transfer data to the computer display
There are still some problems with the CDC mode of USB HS. When adding some irrelevant code, t...
The last 3 days, hurry up if you want it~ 100 sets of RVB2601, a RISC-V ecological development board worth 390 yuan, are coming. Submit your ideas now and you will have a chance to get it for free! Th...
Experts, please ask: 1. Do you have the mpu9150 routine on 430? Can you show it to me for reference? ? 2. Is there any detailed explanation of how to use this acceleration sensor? I bought the small m...
Original title: Simple DIY: Use aluminum cans to make your own Wi-Fi wireless network signal enhancement radarDo you feel that the signal strength of the wireless AP is not enough? You can try making ...
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[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]
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]
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]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[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]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
Dual Tone MultiFrequency (DTMF) signaling is gradually being used in push-button telephones around the world. It quickly replaced the dial pulse signaling used in traditional rotary phones because ...[Details]
The rapid development of the automobile industry has promoted the progress of global machinery, energy and other industries, as well as the development of economy, transportation and other aspects,...[Details]
Voltage hysteresis is a characteristic of lithium-ion battery and the basis of its existence. The principle is as follows: the thionyl chloride electrolyte of the battery is a strong oxidizing chem...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
1 Introduction
This laboratory is mainly based on the characteristics of vocational education. It provides remote PLC technology training and teaching experiment functions for on-campus (studen...[Details]