Keypad and LED Interfacing With PIC16F88 FlowCode Programming And Simulation

In this sample project we are using FlowCode Simulation Software for Programming and Testing with PIC16F88.It shows how to use and simulate and program Keypad with LED for use in different projects.In this Project we are testing Keypad and outputting binary values to LED (Light Emitting Diodes ).Varying the delay and write-erase sequence can be manipulated to get desired result.

Above is the Flow code program:

Keypad Introduction:-The invention of the keypad is attributed to John E. Kerlin, an industrial psychologist at Bell Labs in Murray Hill.A computer keyboard usually has a small numeric keypad on the side, in addition to the other number keys on the top, but with a calculator-style arrangement of buttons that allow more efficient entry of numerical data.

This number pad (commonly abbreviated to "numpad") is usually positioned on the right side of the keyboard because most people are right-handed.

The keypad of a calculator contains the digits 0 through 9, from bottom upwards, together with the four arithmetic operations, the decimal point and other more advanced mathematical functions.
Here is Source

Micro-controller used is PIC16F88 with Eight LED Strip for displaying binary values on display.Below is the Actual Output that you will be able to see on LED Display and LCD Panel( See Next Post


Keypad
LED Strip
LCD(Liquid Crystal Display)
1
0001
1
2
0010
2
3
0011
3
4
0100
4
5
0101
5
6
0110
6
7
0111
7
8
1000
8
9
1001
9
*
1010
10
#
1011
11

In video you will be able to see step-wise execution of program and their effect on LED in panel which is by default in the software .

Flow code Simulation and how to do Video Tutorial:



You can Download Flowcode Program File :
C Code File
Flow Code Program File
ASM Code File

Here is the complete list of projects:

Tutorials for Flow Code Programming and Simulation

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