Wireless Sensor Networks research and demand are now in full expansion, since people came to understand these are the key to a large number of issues in industry, commerce, home automation, healthcare, agriculture and environment, monitoring, public safety etc. One of the most challenging research problems in sensor networks research is power awareness and power-saving techniques. In this maste...

In this paper, we propose the hardware implementation of involutional block ciphers with low energy cost for cryptographic algorithm to WSNs by FPGA implementation. Formerly, microcontroller based sensor nodes are designed like PIC microcontroller, AT Mega128 microcontroller, MSP430.But it have some drawbacks .1) High processing time2) It consumes large amount of energy3) It have less security4...

A magnetic resonance imaging (MRI) pulse programmer has been developed using a single-chip microcontroller (ADmicroC7026). The microcontroller includes all the components required for the MRI pulse programmer: a 32-bit RISC CPU core, 62 kbytes of flash memory, 8 kbytes of SRAM, two 32-bit timers, four 12-bit DA converters, and 40 bits of general purpose I/O. An evaluation board for the microcon...

A microcontroller based capacitance meter using 89C52 microcontroller for the measurement of capacitance has been design and developed. It is based on the principle of charging and discharging of the capacitor. Atmel’s AT89C52 microcontroller is used in the present study. Further, an LCD module is interfaced with the microcontroller in 4-bit mode, which reduces the hardware complexity. Software...

This paper presents the design and development of a motion control system using a MEMS Accelerometer and RF communication with Atemga16 microcontroller. The accelerometer sensor can detect the tilt in all three axes and accordingly generate a corresponding analog output voltage. The generated analog output is converted into 10 bit digital output which is compared to the reference voltage mentio...

This paper describes a student design workshop conducted in the Electrical and Computer Engineering (ECE) Department at the University of Minnesota Duluth (UMD) in which students implemented microcontroller applications using the principles of Fuzzy Logic as contained in the features of the MC68HC12 microcontroller. This workshop provided students with a unique opportunity to merge their academ...

In this work, a microcontroller based circuit that performs the functions of an inverter /AVR hardware essentially consists of a PIC 16F877A microcontroller based circuit,. SG 3524 based modified sine-wave inverter driver circuit, a step-up. Modified sine wave inverter is designed to using pic microcontroller and push pull topology. output of control circuit for modified sine wave inverter The ...

A microcontroller based advanced technique was designed and developed to protect the house hold appliances, such as water-pump from fluctuation of line voltage. This device was tested with upper and lower cutoff voltages set at ±10% of the normal supply voltage (220V, AC) and with an over-load current up to 10A. The current sensor’s output was monitored by the PIC12F675 microcontroller and used...