About

About I am planning to make MicroAutomate web site, a proper resource on micro devices and automation. For now, it contains only some basic informations about microcontroller. I will put information as much as possible in course of time. Any Read more ›

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ATX Power Supply

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Using a PC power supply as a lab power supply To implement experiments on electronics, the first thing you need will be an electric supply. You may buy a laboratory supply, build your own supply or use an ATX power Read more ›

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PIC Programming Tutorial

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A Start-To-End PIC Programming Tutorial In this tutorial we will implement a “blinking led” application. When you complete this tutorial, you will have a blinking led with a one second delay. For this tutorial you will need : – PIC16F628, Read more ›

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Basic Tools To Program PIC

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Tools Serial PIC Programmer This circuit is a simple serial JDM PIC programmer. How it looks like on a bread board. PIC16F84A-datasheet PIC Programmer Software This is a free PIC programmer software : www.ic-prog.com. It can program a lot of Read more ›

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Internal EEPROM

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Internal EEPROM When we write programs for microcontrollers, we usually do all the memory jobs on flash memory. Flash memory has very fast response time. It is like RAM on a computer. And it is volatile! Means that it is Read more ›

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Serial Communication

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Serial Communication Using PIC (USART) Serial communication is very important for micro devices. By using the serial communication one can communicate with computers (via COM port,USB,etc), peripheral devices or some ICs(such as eeprom, A/D converters,etc.). The process of serial communication Read more ›

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Watchdog Timer – WDT

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Watch Dog Timer (WDT) Watch Dog Timer (WDT) is a timer which makes micro controller program work properly without freezing. Its basic working principle is to make microcontroller reset when WDT overflows. To prevent this, we have to clear WDT Read more ›

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Timing – Timers

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Timer interrupts In most Microchip PIC microcontrollers, there are more than one hardware timers which have interrupts. The best thing about timer is that they work in the background. The delay loops will pause your program. You have to wait Read more ›

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Timing – Delay Loops

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Timing in PIC As we studied before, instructions are implemented in one instruction cycle(except branching, they are implemented in two instruction cycle). We can calculate instruction cycle by dividing oscillator frequency by 4. Let’s say we have 4MHz oscillator connected Read more ›

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Interrupts

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Understanding Interrupts in PIC Microcontrollers Using interrupts is a must in a professional microcontroller program. Basicly, when an event has occured, an interrupt flag will be set and program will branch to the interrupt address. By this method, you don’t Read more ›

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