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I started learning PIC microcontrollers with the MPLAB HI-TECH compiler. Recently, I found out that PIC had already launched compilers such as MPLAB X and XC8 a few years ago. I think it’s better t...[Details]
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Overview
This reference design is a 6A step-down LED driver for portable projectors. The reference design is based on the MAX16821 PWM HB LED driver. The circuit can drive one LED; three MAX1...[Details]
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“When God closes a door, he will open a window.” This sentence is very suitable to describe the current photovoltaic market. At a time when the photovoltaic industry is in urgent need of transforma...[Details]
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Crystal calibration and matched load VSWR measurement
I. Experimental Purpose
1. Further familiarize yourself with the use of the three-centimeter microwave test system and the measuring line
2. Ma...[Details]
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After determining the phase line with leakage, the method to determine the leakage location of the low-voltage line at the distribution transformer is as follows: (1) At the distribution transformer,...[Details]
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How to properly maintain the soldering iron tip and extend its life
After applying lead-free soldering, the life of the soldering iron tip will be greatly shortened! How to properly maintain the so...[Details]
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51. Characteristics of high-speed signals on PCB: 156.25MHZ differential clock signal, Rise/Fall Time (20%～80%) 100ps, jitter tolerance (pp 30ps, RMS 2ps), skew (+ vs.-) 20ps. How high bandwidth osci...[Details]
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On March 2, Meizu announced the camera configuration of its new Meizu 18 series. The rear main camera of Meizu 18Pro has been upgraded to the 50-megapixel Samsung GN1, and Meizu 18 supports SMA optic...[Details]
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China Energy Storage Network:
Energy is the foundation for the survival and development of modern society. In order to cope with the energy crisis, countries are actively researching new ener...[Details]
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The circuit
has over
-charging
protection, over-discharging protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
...[Details]
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Putting aside issues such as touch failure and green screen, battery life seems to be the collective flaw of the four models in this generation of iPhone 12 series. In PhoneArena's test of th...[Details]
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Now let's make a summary of the problems encountered by those who have just come into contact with single-chip microcomputer driving LCD screens.
1. No display
A: Hardware problem
...[Details]
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1. Why use a non-contact infrared thermometer? Non-contact infrared thermometers use infrared technology to quickly and easily measure the surface temperature of an object.
No mechanical contact with...[Details]
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At the just-held Shanghai Auto Show, intelligence has become the focus of attention. Whether they are joint venture brands, independent brands, or new domestic forces, they are using this window to...[Details]
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In the design of the driver, we may use flush_cache_all to flush the contents of the ARM cache to the RAM, because the cache in ARM Linux is generally set to write back. Usually, DMA cannot access ...[Details]
Mobile and portable
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