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1. Circuit Diagram Pins D0 ~ D7 are connected to the rows of the dot matrix, and pins P0 ~ P7 are connected to the columns of the dot matrix. 2. 74HC595 chip The 74HC595 chip is an 8-bit serial ...[Details]
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Central topic
* Design of a new refrigerator thermostat system based on STC89C516RD microcontroller
Solutions
*Using STC89C516RD MCU as the control core
*Displaying the current...[Details]
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Selection, testing and replacement of brightness delay lines
When the brightness delay line is open or short-circuited and damaged, the TV will have problems such as opaque image colors, uncle...[Details]
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LED driver
chips can be divided into general purpose chips and special purpose chips. General purpose chips are generally used for
low-end products of
LED display screens
, such as indo...[Details]
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MS46522B is a series of dual-port high-performance ShockLine vector network analyzers. This high-performance series offers unsurpassed value and performance, delivering best-in-class dynamic range, l...[Details]
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1 Experimental Phenomenon
Design an infrared remote control DC motor speed control system based on STC89C52 single chip microcomputer. Once powered on, the digital tube displays 0, and t...[Details]
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1. What is the most valuable indicator of an oscilloscope? Bandwidth is a grade-level parameter. Improving bandwidth also increases cost. 2. How high should the sampling rate be to meet the requirem...[Details]
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Ultrasonic sensor company UltraSense Systems announced the launch of its next-generation multi-mode touch sensing solution, TouchPoint Edge, which aims to replace a set of mechanical buttons under su...[Details]
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In today's rapidly developing innovation, young talents are an important force to promote social progress. Shanghai Xianji Technology Co., Ltd. (Xianji Semiconductor, Hro), as a leader in the s...[Details]
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After finishing the previous special topic on electronic and electrical architecture, let’s take some time to talk about the changes in electronic and electrical architecture in emerging forces, star...[Details]
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The demands on power supply designers are becoming higher and higher, and they are under tremendous pressure to improve efficiency, reduce costs, and shorten product development cycles. Power supp...[Details]
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Probing DDR DRAM with BGA probes is becoming more popular and a requirement due to the increasing complexity and compactness of memory designs and the increasing data rates. DDR3 and DDR4 data rate...[Details]
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1 Introduction
At present, with the widespread opening of the caller identification (caller ID) service in the telecommunications sector, telephones with caller identification function are becoming...[Details]
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For a long time, lithium iron phosphate batteries have been in a state of "blooming within the wall and smelling good inside the wall" because their battery life and low-temperature performance are...[Details]
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NS's LMP8358 is a high-precision programmable gain instrumentation amplifier. The gain can be programmed to 0, 20, 50, 100, 200, 500, or 1000 through an SPI-compatible serial or parallel port, or set ...[Details]
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