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1 Introduction At present, most of the wired multi-point temperature acquisition systems are used to monitor indoor and outdoor temperatures by installing temperature nodes. This traditional multi-...[Details]
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During this period, masks have become a very scarce protective equipment. Doctors in the epidemic area are still not supplied enough, and the masks available to ordinary people are even more limi...[Details]
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A/DD/A conversion
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#include reg52.h
#define uint unsigned int
#define uchar unsigned char
#define PCF8591 0x90 // PCF8591 address
sbit sda=P2...[Details]
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At around 10 am on November 3, in Leliu, Shunde, China's home appliance town, the cross-border truck loading area of Guangdong Xinbao Electric Appliance Co., Ltd., a major exporter of small home ap...[Details]
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0 Introduction
In actual work, for multi-channel resistance measurement, direct measurement is generally used for manual operation. Although this method is very mature, it uses a lot of supporting e...[Details]
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In recent years, the electricity demand in Changsha, Hunan has grown rapidly, and the power supply has become a bottleneck for high-quality development. To this end, Changsha has launched a three-y...[Details]
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In actual digital communication systems, it is very difficult to transmit digital signals completely according to ideal conditions. During the signal transmission process, adjacent code elements will...[Details]
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American scientist Daniel Nocera recently announced the latest progress of his research team at the 241st Annual Meeting of the American Chemical Society - a cheap and efficient "artificial leaf". ...[Details]
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1. Schematic diagram 315/433 MHz super regenerative module used in the experiment Transmitter schematic diagram Schematic diagram of receiving end 2. Transmitter Code Send data using NEC proto...[Details]
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Oscilloscope bandwidth
For electronic engineers who often deal with oscilloscopes, the bandwidth of the oscilloscope is undoubtedly one of the indicators they care about most. Bandwidth directly ...[Details]
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In winter, the working environment temperature of outdoor equipment batteries is low, and the performance of batteries at low temperatures decays severely with temperature changes. Relevant st...[Details]
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Wallpaper Washability Tester / Wallpaper Wipeability Tester is used to determine the water resistance and washability of wall decoration wallpapers made of paper, vinyl and plastic materials. Main ...[Details]
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Bose today launched a new portable Bluetooth speaker, the SoundLink Flex, which features a rugged design, costs $149, has an IP67 dust and water resistance rating, and has a battery life of 12 h...[Details]
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Recently, Jiangsu Zhongtian Technology Co., Ltd. (hereinafter referred to as "Zhongtian Technology Co., Ltd." or "the Company") and Zhongtian Energy Storage Technology Co., Ltd. (hereinafter referr...[Details]
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The bottom layer of the hierarchy of embedded software packages in the eCos system is the Hardware Abstraction Layer, referred to as HAL, which is responsible for operating and controlling the targ...[Details]