Wireless communication is a part of people’s daily life. In the office, school or home, people are in contact with wireless communication equipment, such as notebook computers, printers, cameras, handheld devices, lighting controllers and home appliances. The complexity of these devices is related to the types of tasks they perform. Many home automation wireless applications […]
Category: Circuit Diagram
Design of interface and reset circuit module of wireless communication system based on NFC Technology
Short distance wireless transmission has the advantages of strong anti-interference performance, high reliability, good security, less limited by geographical conditions, flexible installation and so on. It has a wide application prospect in many fields. Low power consumption and miniaturization are the actual needs of users for current wireless communication products, especially portable products. Short distance […]
Circuit design of analog phase shifter based on Microcontroller
Phase shifters are widely used in various circuits. However, due to the deviation and capacitance tolerance in amplifiers, it is difficult to achieve the precise phase shift required for precise control of circuits. The circuit in the figure uses ad5227 64 step increment / decrement digital potentiometer IC3 to control the phase shift from input […]
Circuit design of multi machine wireless short distance communication system based on single chip microcomputer
With the rapid development of modern communication technology, many application fields adopt wireless communication mode for data transmission. The circuit composed of encoding and decoding chips PT2262 and PT2272 is widely used in various wireless remote controls, wireless alarms, toys and other small electrical devices due to its small size, low power consumption, strong function […]
Circuit design of short distance wireless communication system based on AT89C52 MCU
Short distance wireless transmission has the advantages of strong anti-interference performance, high reliability, good security, less limited by geographical conditions, flexible installation and so on. It has a wide application prospect in many fields. Low power consumption and miniaturization are the actual needs of users for current wireless communication products, especially portable products. Short distance […]
Circuit design of short distance wireless video transmission system
As the key technology of 3G mobile communication, wireless video communication has been widely concerned. But it is for long-distance multi-user service, development is difficult, need many auxiliary technical support. However, the short-range wireless video communication can be realized by relatively mature technology. It can be applied to the parts of video monitoring that are […]
Circuit design of wireless data transmission and GSM communication module based on TC35i
Design of wireless data communication circuit Wireless data communication circuit is mainly responsible for short-range wireless data exchange between motor vehicles and fixed base station system. It consists of core chip nRF401 and its accessory components. NRF401 is a special wireless communication chip with dual channel, high performance and low power consumption. Its working frequency […]
Circuit design of sensor and node power supply module based on ZigBee Technology
As one of the core technologies of wireless sensor network (WSN), ZigBee technology has the following characteristics: 1) low energy consumption and battery power supply, which is suitable for the field where the conventional power supply mode is not available. 2) Reliable communication, network self-organization, self-healing, without manual intervention. Each communication node automatically finds and […]
Collection of circuit diagram design based on NFC Technology
Top1 electronic wallet circuit design based on NFC technology control NFC has the characteristics of two-way connection and recognition. It works in the frequency range of 13.56MHz and the operating distance is close to 10cm. NFC technology promotes standardization under the framework of ISO 18092, ECMA 340 and ETSI TS 102 190, and is compatible […]
Circuit module design of wireless communication system based on arm Cortex-M3
In order to meet the requirements of a module that can realize the short message sending and receiving and data wireless transmission, this paper uses STM32, the mainstream product of arm Cortex-M3 kernel, as the main control chip, and sim900a of simcom company as the communication chip. After consulting a large number of relevant literature […]