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OFILM issued an announcement stating that the company and its subsidiaries OFILM Technology and others plan to sell 962 patent ownership/application rights related to the touch display business for m...[Details]
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Follow the path of the battery factories Recently, Ganfeng Lithium, the "lithium king" with a market value of hundreds of billions , has made another big move. Invested in building China's larges...[Details]
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There is one thing you must pay attention to in the hardware structure of the button, which is to pull up the resistor on the GPIO segment. Otherwise, after the GPIO is set to floating input, the port...[Details]
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Clock Oscillators and RF Systems Clock oscillators are used as reference signal sources for frequency synthesis phase-locked loops and are widely used inlocal oscillators, clock gener...[Details]
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In recent years, radio frequency microelectronic system (RF MEMS) devices have attracted widespread attention for their small size and low power consumption. In particular, the phase shifters and ant...[Details]
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A speaker is an electroacoustic transducer. It is the weakest component in audio equipment, but it is also the most important component for sound effects, and its performance requirements are very...[Details]
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This article has three contents: 1. The principle of resistive touch screen; 2. The control word and digital interface of XPT2046; 3. Program source code explanation (refer to the code of the atom at...[Details]
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The generation rules of the ELF format "u-boot" file are as follows. The following is an analysis of each dependency corresponding to the execution process of the Makefile.
$(obj)u-boot:...[Details]
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This paper proposes a nondestructive testing method for wire rope based on wireless transmission mode of nRF24L01. The system is used to perform nondestructive testing on online wire rope. The test ...[Details]
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1 Overview
Since the 20th century, my country's coal mines have begun to use a large number of 127V lighting power supplies and their comprehensive protection devices. So far, the lighting equi...[Details]
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The Serial Peripheral Interface (SPI) of the S3C2440A can be connected to serial data transmission. The S3C2440A contains two SPIs, each with two 8-bit shift registers for sending and receiving. Duri...[Details]
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Application areas:Automated measurement
Challenge: According to the human body impedance characteristics, measure the human pulse signal by picking up the impedance change. Use the powerful digital s...[Details]
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Some of the steps I wrote before are bullshit. I don’t know why no one has given feedback. I mainly recorded them for myself. I wanted to write them well, but when I got to the last step, I used the ...[Details]
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The sweep time base in the oscilloscope is the basic unit of time display. Time base is the time base, which is mainly used in electronic circuits to represent the reference clock in digital circuits...[Details]
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In the early morning of April 13th, Beijing time, the annual NVIDIA GTC conference arrived as scheduled. This is the second time that the NVIDIA GTC conference has been held online after last year. ...[Details]
RF/Wirelessly
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