Rubrik : C Programming for 8051/ AVR

Generate sound using 8051 microcontroller (AT89S51)

This article explains the concept behind generating sound from the 8051 microcontroller (AT89S51). This concept can be used to generate sound with any MCU. It can be used to generate specific sounds or alarms. This circuit has wide application...

Up down counter using 8051 microcontroller (AT89S51)

This article shows an easy to build up down counter. The counter is based around the 8051 microcontroller (AT89S51). Two switches are provided, one for increment and second for decrement. The switches can also be replaced by sensors to increment or d...

Rotate Right ( C language-basic )

Some people have said to us, that the tutorials that we provide are simple or outdated. But we believe the simplicity of it we can give lessons and can teach beginners to be able to create new, more powerful thing than what we teach. Below are examp...

C programming AT89S51

Programming Language C already 30 years using that human to make a variety of applications related to computer, from the 60's the creator of the C language ....Danish R... I forgot his name and up to now continue using that to create a new applicatio...

A Word about Interrupt Latency

Interrupt latency is the time between the generation of an interrupt by a device and the servicing of the device which generated the interrupt. In other words it is the time taken to service the interrupt or the longest time between when the interrup...

Implementation of Minutes Counter

This program implements a seconds counter on the serial seven- segment LED. Timer 0 is used for the generation of delay of a minute. With elapsing of the delay routine the count is incremented and dis- played on the serial se...

Interrupts in Microcontrollers

Interrupts are of immense importance in any microcontroller-based system. A peripheral such as timer/counter, A to D converter, or even a memory or a keyboard can interrupt the microcontroller from its ongoing sequentialexecution to let it know that ...

Scanning of Keypad in C

Here...this articels how to scanning keypad 4X4, i use this for 8051 family microcontroller,keypad on Port 1, you can also use the other exp. AT89S51, AT89s8252 etc, the schematic you can draw by your self, if any question you can send some com...

Interrupts in Microcontrollers

LCD Interfacing ( obsolete )

//give your commnets.....plzz LCDs are commonly used as an output interface to embedded systems products like cell phone, data loggers and process control instruments. Figure bellow shows LCD controller Hitachi 44780 that prov...

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