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Physicists at the University of Alberta in Canada, in collaboration with the Technical University of Munich, have invented a molecular dye that can emit more colors of light than any other molecule c...[Details]
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The development environment is IAR 1: If the program cannot be downloaded, please consider the following: 1) Make sure the actual circuit connection is correct. 2) The download line of stlink is no...[Details]
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introduction Multi-level conversion technology has attracted more attention due to its advantages such as reducing the voltage stress of devices, eliminating the problem of voltage balancing without...[Details]
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EXTI has two functions: one is to generate an interrupt, the purpose is to pass the input signal to NVIC, further run the interrupt service function, realize the function, at the software level; the ...[Details]
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1 When the sensor module is in use, the secondary power supply should be connected first , and then the primary current or voltage. 2 When selecting a sensor module, choose different types of sen...[Details]
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Case number one: Instrument model: 8720ES Instrument failure: does not turn on The customer described that the instrument suddenly went black and could not be restarted while in use. Based on the fau...[Details]
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According to the data from the China Automobile Association, the number of heavy-duty trucks in my country in 2019 was 7.617 million, accounting for 3.0% of the total number of vehicles. However, acc...[Details]
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On May 13, according to foreign media reports, the board of directors of chip foundry TSMC held a meeting on Tuesday and approved a capital expenditure plan of approximately US$5.7 billion for factor...[Details]
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1. This design uses STC89C51/52 (compatible with AT89S51/52, AT89C51/52, optional) microcontroller as the main controller 2. Use Hall sensor to measure motor speed non-contact 3. LCD1602 liquid cryst...[Details]
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I am used to searching the Internet when I encounter problems in debugging programs. I can often get inspiration from the records or replies of experts. I didn’t expect that one day I would start wri...[Details]
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On May 16, the Expert Advisory Committee of Huizhou Zhongkai Institute of Electronic Information Technology (hereinafter referred to as the “Institute”) was established. It is reported that the ins...[Details]
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The multimeter has a dead time during the test. There will be a delay during the multimeter test. The reasons are as follows: Additional time is required to perform the internal autozero measuremen...[Details]
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The 4-20mA digitally controlled current source circuit designed by DAC7644 (Burr-Brown 16-bit quad voltage output D/A converter) is shown in Figure 1. DAC7644 provides a differential reference inpu...[Details]
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The new Motorola Razr combines the classic flip design with cutting-edge flexible screen technology. The cutting-edge technology of this phone is also reflected in another aspect, that is, eSIM...[Details]
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Many people don't have the money to buy an expensive oscilloscope or spectrum analyzer. Or simply don't want to invest in something they'll use for very little money. However, many people like to b...[Details]
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