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The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
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0 Introduction to the direct method of feedback linearization based on dynamic equilibrium state theory
The basic idea of the direct method of feedback linearization based on dynamic equilib...[Details]
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Abstract: Based on the research of the communication process between the reader and the RFID tag, combined with the EPC C1G2 protocol and ISO/IEC18000.6 protocol, a digital circuit of RFID tag appl...[Details]
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Compared with traditional light sources, light-emitting diodes (LEDs) have many advantages, such as low operating voltage, high energy efficiency, small size and directional light. They can provide...[Details]
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Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
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"Where am I? Where am I going? Where is he/she? How far is he/she from me?..." Do you often have such questions like me? In fact, who can deny that these are questions that we often think about, ev...[Details]
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0 Introduction
The PTZ controller designed with a single-chip microcomputer as the core can control the camera to move over a large range and at a wide angle in monitoring situations, so t...[Details]
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With the increasing application of various nonlinear loads, reactive power and harmonic pollution in the power grid have become a very serious problem. In order to eliminate the pollution caused by...[Details]
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0 Introduction
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
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1 AD7674 and C8051060 Introduction
1.1 AD7674 Introduction
AD7674 is a high-precision 18-bit successive approximation (SAR) ADC with high sampling rate, high precision, low power ...[Details]
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1. Introduction
In recent years, with the rapid development of microwave and millimeter wave technology, higher requirements have been put forward for broadband microwave and millimeter ...[Details]
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1 Introduction
Heart disease is one of the major diseases that seriously threatens human health and life. Statistics show that about 60% of heart patients die at home. If these patients ca...[Details]
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introduction
Radio Frequency Identification (RFID) technology is an emerging non-contact automatic identification technology with broad application prospects in many fields such as industr...[Details]
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Project Background
With the gradual prosperity of the economy, real-time monitoring of scenic area traffic has become increasingly important. Establishing a comprehensive traffic image man...[Details]
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After years of waiting, China Telecom finally obtained the CDMA operating license, and the 3G license issuance has further triggered the long-awaited "Tianyi Plan". The recent overwhelming 189 publ...[Details]
DIY/Open Source Hardware
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