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1. Working principle of buzzer Active buzzer: refers to the oscillation source, which will sound when powered on with internal oscillation. Passive buzzer: to give square wave, constantly connected...[Details]
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The FCC standards for walkie-talkies mainly include CFR47 Part15B, Part90 and Part95. Part15B mainly covers EMC testing, Part90 mainly covers RF testing for professional walkie-talkies, and Part95...[Details]
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IT Home reported on April 17 that according to The Verge, in today's spring game, the University of Florida (UCF) football team will print QR codes instead of numbers on the back of jerseys. ...[Details]
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Introduction of single-phase asynchronous motor:
Single-phase asynchronous motor is a common AC motor, usually used in household appliances, small mechanical equipment, etc. The rotor of the s...[Details]
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1. Introduction: With the application of computer systems and the development of microcomputer networks, the communication function between various control devices is becoming more and more importan...[Details]
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The main component of crystal is silicon dioxide, commonly known as quartz. Quartz has extraordinary mechanical and piezoelectric properties, making it a basic clock device since the mid-1840s. Today...[Details]
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The leakage current tester is designed according to international and domestic safety standards such as IEC, ISO, BS, UL, JIS, etc. It is suitable for testing the safety leakage current of various ...[Details]
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First, pay attention to the hardware resources (including: CPU, ROM, RAM, various interfaces), among which the size of NanD Flash, Nor Flash and SDRAM must meet the requirements of your own developme...[Details]
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0 Introduction
Installing a prosthesis is an effective means for amputees to compensate for their lost motor function and return to society. One of the focuses of prosthetic research is the bio...[Details]
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The Financial Times recently published an article by Tom Tugendhat, a member of the British Conservative Party and the British Foreign Affairs Committee. The article believes that the British governm...[Details]
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1. Customer requirements:
1. 100 monitoring points
2. 2 cameras at each monitoring point (PTZ controllable)
3. The central control room can record and play back each point
4. Us...[Details]
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IAR software, using the official halt library #define OPT_BL_ADDR_L 0x480B #define OPT_BL_ADDR_H 0x480C void enable_ota_action(void) { uint16_t optbl = 0; FLASH_DeInit(); FLASH_Unlock...[Details]
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“The piezoelectric market for sensors, actuators and transducers based on bulk and thin film technologies is expected to reach $48.5 billion in 2024, growing at a CAGR of 12.6% since 2018,” said Jérô...[Details]
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I recently used USB and later found that STM32F103 can implement DFU programmatically. I searched the code online and compared it with the official document and found that it was DFU for large-capaci...[Details]
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Before doing anything, you must have a goal in mind. Things without a goal cannot be done well or accomplished. My goal is to learn ARM development, of course, in-depth learning.
The goals are ...[Details]
DSP and ARM Processors
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