Accounting for all possible short circuits in a direct current circuit can prove to be an arduous process. To avoid unintended operation and circuit damage, short circuit protection may be implemented via hardware or software. This paper views the short circuit detection problem as a hardware-software codesign problem in which an inductor installed in a DC circuit is designed alongside a microc...

According to the needs of the security operation taxi, a kind of vehicle monitoring terminal device which takes C8051F040 microcontroller as the core, combining GPS, GPRS and LCD was proposed. This device will show the superiority of C8051F040 microcontroller, which is high-speed, low-power, and has rich interface. Through the application of GPS, LCD, and the GPRS module which communicate with ...

This paper explains the design of the PICBIT RRS Scheme system which specifically targets the PIC microcontroller family. The PIC is a popular inexpensive single-chip microcontroller for very compact embedded systems that has a ROM on the chip and a very small RAM. The main challenge is fitting the Scheme heap in only 2 kilobytes of RAM while still allowing useful applications to be run. PICBIT...

Security is one of the most concerning factor in bank vault system. Without proper and strong security a vault can be penetrated. Most of the systems are based on human supportive security protocol. The main purpose of this paper is to construct a microcontroller based automated system which can give instant protection against any break-in by hackers or against physical penetration and send war...

High-speed microcontrollers are widely used in portable equipment. With the proper use of a power management mode, the designer can optimize the life of batteries used in today's new systems. This application note looks at ways to reduce power consumption by choosing efficient clock source and clock speed, the use of stop mode, idle mode and burst mode. The Maxim High-Speed Microcontroller and ...

studies show that any complications including hemorrhage, lack of blood supply, lack of oxygen supply, and death of cells in a tissue, will have a clear effect on electrical properties of that tissue. thus, by measuring impedance of a set of tissues, potential problems of the damaged tissue may be found. since electrical impedance is closely related to the measuring frequency, obviously, every ...

This paper describes a device server for a miniature mobile robot. Generally, miniature robots have low-size memory and relatively slow microcontroller to realize complicated tasks. Therefore, a device server for small sized mobile robots is proposed with the intention of increasing their capabilities. The proposed software system runs on the microcontroller of the robot, and serves a collectio...

This paper describes the design and development of low cost USB Data Acquisition System (DAS) for the measurement of physical parameters. Physical parameters such as temperature, humidity, light intensity etc., which are generally slowly varying signals are sensed by respective sensors or integrated sensors and converted into voltages. The DAS is designed using PIC18F4550 microcontroller, commu...

A smart sensor is a sensing device that uses a microcontroller to generate more accurate information than standard sensors. The evolution of microcontroller technology toward lower prices, small size, and high performance opens the door for smart sensors in others applications such as discrete industrial sensors. It is only a question of time before the same trend will also be seen in the comme...

This paper presents PIC microcontroller based PWM inverter controlled four switch three phase inverter (FSTPI) fed Induction Motor drive. The advantage of this inverter that uses of 4 switches instead of conventional 6 switches is lesser switching losses, lower electromagnetic interference (EMI), less complexity of control algorithms and reduced interface circuits. Simulation and experimental w...