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When the megohmmeter is working, it generates high voltage, and the object to be measured is electrical equipment, so it must be used correctly, otherwise it will cause personal or equipment accidents...[Details]
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At the 2019 China Semiconductor Packaging and Testing Technology and Market Annual Conference held in Wuxi, Xu Juyan, an academician of the Chinese Academy of Engineering, delivered a speech entitled...[Details]
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Notes on entering HALT Set the unused IO ports to output low; Turn off all used peripheral clocks (such as ADC, USART, etc.); Peripherals used for disability; The measured standby current in HALT m...[Details]
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Although few mobile phones have been able to upgrade to the official version of Android 11, Google can't wait to preview Android 12. The official revealed that based on developer feedback, next year'...[Details]
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The principle of virtual pixel display The virtual pixel LED display screen uses software algorithms to control the light-emitting tubes and enable the light-emitting tubes to participate in the im...[Details]
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The new 317 is a new clamp meter designed based on electrical maintenance engineers’ in-depth research on the use needs of clamp meters. Its small jaws and lightweight body make it easier for electri...[Details]
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;******************************************************
;* Name: kbd
;* Function: Read key value from keyboard and store it in register A: r*4+c
;* Input:
;* Output: A=key value
;***************...[Details]
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Samsung's Galaxy Watch 4 and Galaxy Watch 4 Classic are the world's first smartwatches to run Wear OS 3.0. Later this year, Samsung will launch its next-generation Galaxy Watch 5. According...[Details]
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1 Introduction
ST7920 is a Chinese graphic LCD controller produced by Taiwan Silicon Creation Electronics Co., Ltd. It can be used as a controller and driver to provide 32 com outputs and...[Details]
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0 Introduction
With the further development of CPU technology, 32-bit embedded PDA technology based on ARM platform has also been greatly developed. PDA has changed from a simple personal digi...[Details]
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The general sensitivity of a high-range acceleration sensor is about 1 mV. If the acceleration signal is in the range of 1g to 10g, the output of the sensor is 1 mV to 10 mV. The noise of the traditio...[Details]
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1. Main program
#include "sys.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "delay.h"
#include "remote.h"
#include "stm32f10x_tim.h"
/*
Program function: Use the timer i...[Details]
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Many novices don’t know how to perform bitwise operations on the I/O ports of STM8 without using the STM library functions. Let me share with you my experience when I first started using STM8! p st...[Details]
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According to foreign media neowin, security researchers have discovered a vulnerability in Amazon's Alexa voice platform. Check Point Research said that when the vulnerability is exploited, at...[Details]
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"Science and Technology Innovation Board Daily" reported on November 7 that intelligent connected vehicles are expected to usher in a period of intensive policies.
Today, at the "2024 Sm...[Details]
Power technology
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