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The STC89 series of microcontrollers is a new type of microcontroller produced by STC Company. It has the same functions as the AT89 series of microcontrollers, and both use 8051 technology to make t...[Details]
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The previous section introduced the timing process of each bit signal of I2C, and I2C communication also has fixed timing requirements in byte-level transmission. After the start signal (Start) of I2...[Details]
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According to foreign media MacRumors, in the latest research report of Haitong International Securities, analyst Jeff Pu said that there are 4 models of iPhone 14, two of which Pro models will have...[Details]
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Abstract: A computer control system for traveling wave ultrasonic motor drive based on 8254 is proposed. The control system circuit is simple and it is quite convenient to control two square wave d...[Details]
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According to the "Today Wujin" public account, on August 8, the signing ceremony of the Changcheng Automobile Industry Intelligent Car Light Manufacturing Base Project was held. (Photo source: Toda...[Details]
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These two instructions can be used to read or write CPSR or SPSR. When you need to save or modify the contents of CPSR or SPSR in the current mode, you must first transfer these contents to the ge...[Details]
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Lightning disaster is one of the natural disasters that humans cannot avoid at present. Surge protector (SPD) is a device that suppresses the impact voltage generated by lightning, electrical syste...[Details]
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Generally, the SPI interface of all microcontrollers needs to configure the following contents (CPU as SPI master mode): 1. Pin function/direction configuration: The standard SPI interface consists...[Details]
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Select the R*1Ω position of the multimeter, and then use the red and black test pens to measure the forward and reverse resistance between any two pins until you find the pin pair with a reading of t...[Details]
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According to the iPad roadmap released by Bloomberg, well-known whistleblower @Jon Prosser shared some information about the upcoming iPad mini design. He said that the size of the sixth-generation...[Details]
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“With the accelerated adoption of Wi-Fi 6 and Wi-Fi 6E, global shipments of Wi-Fi 6 devices are expected to reach 2.5 billion units in 2023. Today’s Wi-Fi is well-suited to address a variety of indus...[Details]
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Samsung has released the 64-megapixel ISOCELL Bright GW1 sensor, which is one of the highest-pixel sensors in the mobile phone field and is close to the HDR dynamic range of the human eye. Li...[Details]
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1. How are headphones classified?
1. Based on the transducer principle, they are mainly divided into two categories: dynamic and electrostatic headphones. Although there are several other types besi...[Details]
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As an important part of the power supply system, the performance of the variable frequency power supply is directly related to the safety and reliability indicators of the entire system. Modern variab...[Details]
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In industrial
control
and bias adjustment
circuits,
it is sometimes necessary to convert voltage to resistance, which is a process that is difficult to implement.
The circuit
shown in Fi...[Details]