AT89S51
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A simple random number generator using 8051 microcontroller. AT89S51 is the controller used here
A simple random number generator utilizing the 8051 microcontroller. The AT89S51 is the controller employed in this setup.
The circuit design for the random number generator based on the AT89S51 microcontroller involves several essential components and connections. The AT89S51 microcontroller, which...
temperature sensor interfacing with 8051
The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 has an advantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a...
Robo Atmega328p project
This project was designed to introduce a friend to microcontrollers and circuits using various functionalities and spare parts. A PS2 numpad was utilized as the key entry mechanism, which was found at a thrift store and included the necessary connector....
ultrasonic sensor interfacing with 8051
To enable a robot to detect objects in its surroundings, an ultrasonic sensor is recommended. While infrared (IR) sensors are inexpensive, their operational range can fluctuate due to ambient light changes, resulting in inaccurate range measurements. Ultrasonic sensors operate based...
µP-Controlled Oscillator Delivers Rock-Bottom Distortion
Function generators are essential in the design, testing, and operation of encoders, modulators, demodulators, and measurement instruments. This document presents an economical method to construct a bus-controlled sinewave oscillator that exhibits exceptionally low distortion. The circuit produces a sinusoidal output...
Multitasking Pins
It is entirely logical that low-cost miniature microcontrollers have fewer pins than their larger counterparts, sometimes too few. Consideration has been given to how to economize on pins by making them perform multiple functions. One approach is to exploit the...
Heart rate monitor using 8051 microcontroller .measures the heart rate from finger tip
Heart rate monitor using an 8051 microcontroller. It measures the heart rate from the fingertip using an IR diode and phototransistor pair (Photoplethysmography). The AT89S51 microcontroller is utilized in this application.
The heart rate monitor circuit operates based on the principle...
POWER LINE MODEM FOR COMPUTER CONTROL
This circuit employs an 87C57 microcontroller along with several peripherals to convert X-10 power-line carrier-code formats from a personal computer for use with an X-10 power-line interface in a home-control system. Software details can be found in the reference.
The circuit...
Microcontroller Programming 2
For this week's assignment, a chip design was provided, and the task was to incorporate a button and an LED (light-emitting diode). The objective was to fabricate the chip and program it to interact with the light and button. Given...