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For some USB flash drives and SD cards, the Linux system that comes with the mini2440 development board cannot be automatically mounted in the file system. This is because the /etc/mdev.conf and /b...[Details]
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introduction Z scanning is a method applied to optical nonlinear measurement. This method can measure the size, positive and negative, and nonlinear absorption coefficient of the nonlinear refractive...[Details]
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Circuit principle: This circuit has a charging status display function. The red light flashes when it is charging, the green light flashes when it is about to be fully charged, and the green light...[Details]
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From small households to large enterprises, energy consumption has always been a concern for everyone. The energy consumption of Chinese enterprises has always been high, and the country has also wor...[Details]
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What does rail-to-rail operational amplifier mean?
Operational amplifiers (often referred to as "op amps") are widely used circuit units with ultra-high magnification. They can be composed of discr...[Details]
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The nominal -48V rail is widely used in telecommunications equipment in wireless base stations and network central offices, and its voltage can vary from -48 to -60V.
Measuring
its power co...[Details]
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/********************************************************************************
Copyright: 2013-07-27.version1.0
File name: key.c
Description: Self-made single-key recognition to achi...[Details]
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High voltage protection CFE can isolate high input voltage from low voltage charger and system to prevent high voltage from appearing in the system. It integrates all safety functions, including inpu...[Details]
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1. Experimental tasks
(1. A 4X4 matrix of 16 buttons is designed to produce 16 tones.
(2. You can play the music you want to express.
2. Circuit diagram
Figure 4.22.1
3. System board ha...[Details]
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Maxim Integrated Launches Trinamic Servo Controller/Driver Module to Speed Up Robotics and Automation Equipment While Reducing Power Consumption by 75%
Single-axis controller/dri...[Details]
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On May 28, the groundbreaking ceremony for the second batch of projects in the second quarter of Nansha New District and the groundbreaking ceremony for Juwan Technology Research Headquarters and P...[Details]
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TKDCW-II DC Power Supply Ripple Tester Model: TKDCW-II Name: DC power supply ripple tester DC ripple tester DC voltage ripple tester ripple tester ripple meter TKDCW-II DC ripple tester is designed...[Details]
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The continued push for wearables is transforming individuals into their own data centers, including flash drives, mobile PCs, sensor arrays, medical devices, and more. Various technologies compete ...[Details]
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I finished reading the GPIO development part of S3C2140A in the evening, and then wrote a small LED program according to the data sheet of 2440. To summarize, the program is as follows:
Initializatio...[Details]
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Whether it is an automobile manufacturer or an Internet company, the realization of autonomous driving of automobiles all adopts the technical framework of environmental information perception and ...[Details]