In this tutorial i am going to count the number of rising and falling edges of a square wave signal that is input to the pic microcontroller. The rising and falling edges are useful in generating time delays from external clock sources. They can be used to determine the frequency of the square wave input […]
Counting Signal Rising and Falling edge using Pic Microcontroller Timer-0 Read More »
Here is a simple project on how to control fan or dc motor speed with microchip pic16f877 microcontroller. There are numerous ways to control the speed of motor(or fan). Varying current, voltage and resistance etc. But when it comes to controlling the speed using microcontrollers. Then the PWM (Pulse width modulation) technique is most effective
Recently i was working with 8-bit pic16f877 microcontroller and i want to place program code at a specific rom(read only memory) location. I was working with xc8 compiler and mplabx ide. Previously i did this same thing many times while using c18 c compiler. C18 compiler uses #pragma code directives to accomplish this task. But when i
Character lcds can display character of font size 5×8 and 5×10. In 5xn, 5 represents number of coulombs and N represents number of rows. Character lcd’s especially which are controlled by Hitachi HD44780 controller can display 5×8 and 5×10 size font character. Some lcd’s can only display character in 5×8 font. In this project i
How to display 5×8 and 5×10 size font characters on 16×2 lcd with 8-bit microcontrollers Read More »
This post covers how to interface JHD404A 40×4 lcd with microcontroller (89c51, Pic16f877, Arduino etc). JHD404A is a 40×4 Character lcd. 40×4 means it has 40 coulombs and 4 rows. On each row of lcd we can display 40 characters/numbers etc. Total characters which we can display on 40×4 lcd is equal to (40×4=160) 160.
Interfacing JHD404A (40×4) lcd with Microcontroller Read More »
An year ago i made a plc (programmable logic controller) using microchip pic microcontroller. Its a 16 bit digital input and output programmable logic controller. Plc programming is done using a standard ladder logic language. The software that is used for plc programming and ladder logic design is an open source compiler written by Jonathan Westhues
PLC (Programmable Logic Controller) with Microchip Pic Microcontroller Read More »
Displaying Text on 16×1, 16×2 or any size of character lcd is not a complex task. Once you know about the internal structure of the character lcd, lcd pin out, registers associated with lcd’s and CG-RAM(Character Generated RAM) then its all on your finger tips. If you are really interested in lcd programming, and want to know
How to Display Text on 16×2 Character Lcd Read More »
In this post/tutorial i am going to teach you how to interface graphical lcd jhd12864E with microchip pic16f877 microcontroller. I am going to display my website name “www.microcontroller-project.com” and a special pattern that displays thick lines on dotted graphical lcd display. In graphical lcd name “jhd12864” the number 128×64 means lcd has 128 coulombs and 64 rows.
Interfacing Graphical LCD(GLCD-JHD12864E) with Microchip PIC16f877 Microcontroller Read More »
This is a simple tutorial/project on how to interface a transistor (2n2222), led and push button with Pic microcontroller. In the project i am going to switch on and off(blink) an led with the help of a push button. Since transistors are used at outputs we can drive heavy loads with the same circuit. Pic16f877
Push Button as Input and Led as Output with Pic Microcontroller Read More »
Displaying moving or scrolling text on lcd(16×2,8×1,16×4,8×2,16×1,20×1,20×2 etc) is very easy using any microcontroller. You just need to know how to efficiently use 16×2 lcd commands. In this project i am using pic 16f877 microcontroller to display text and then scroll it on the 16×2 lcd. The lcd which i am using is 16×2. Where
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