The majority of the resistors used in the electronic circuits are of the type fixed resistors. The fixed resistors are of the type resistors which has the fixed resistance value. It is not possible to change/vary the resistance of the fixed resistor. The classification and applications of resistors are discussed in the following article. A […]
A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistance It is the property of the material which opposes the flow of electric current through it. Resistor A resistor is a passive component that limits or opposes the flow of electrical current in a circuit. In
By frequency domain analysis, we mean the steady state response of a system when subjected to a sinusoidal input. In frequency domain methods, the frequency of the input signal is varied over a certain range and study the resulting response. This is shown in Figure 1. Figure 1: System subjected to different frequencies Frequency domain
The 8255 is a widely used, programmable, parallel I/O device. It can be programmed to transfer data under various conditions, from simple I/O to interrupt I/O. It is flexible, versatile and economical and complex. Lets see how to interface 8255 with 8085 microprocessor. Features of 8255 Three 8-bit IO ports PA, PB, PC PA can
Stepper motor is a special type of DC motor. For every electrical pulse given stepper motor rotates certain no. of degrees. It is used in digital control systems such as robotics, dot matrix printers, disk drives etc. In this article, I will show stepper motor control using 8051 microcontroller and ULN2003. The stepper motor has
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Signal Flow Graph (SFG) is an Alternative method to block diagram representation. Like block diagrams it does not consist of blocks, summing points and take-off points. It only of a network in which nodes are connected by directed branches. Definition: A signal flow graph is graphical representation of the relationship between variables of set of
Transfer Function is the ratio of Laplace transform of the output to the Laplace transform of the input, assuming all initial conditions zero. In general Where x is the input of the system and y is the output of the system. When order of the denominator polynomial is greater than the numerator polynomial the transfer
Embedded systems are specialized computer systems designed to perform specific functions or tasks within larger systems. Developing software for embedded systems requires a different set of tools compared to traditional software development. Here are various software development tools in embedded system used for system development. Editor It is a software module used for writing assembly,
Following steps are involved in software development cycle for microcontrollers and microprocessors. Writing codes Translating codes Debugging the codes with the help of tools via emulators Programming microcontroller to build up the first prototype of the system. Writing Microcontroller Code Software Code for a microcontroller is written in a programming language of choice (often Assembly
In the world of microcontrollers, the 8051 stands as an iconic and versatile chip that has fueled countless innovations in embedded systems. One of the key aspects that makes the 8051 a preferred choice for many developers is its compatibility with assembly language programming. Assembly language, though often considered intricate and low-level, offers unparalleled control
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