Manipulating The Data of Arduino code using Keypad

Projects General Guidance
1

Hello !!!

               Suppose I want to manipulate a particular part of the code say a value somewhere like delay etc things , then is it possible to do it with a keypad 4x4 by entering into some edit mode ??

Example :

if(digitalRead(22) == LOW)
{
digitalWrite(PIN45,1);
delay(100);
 }

Here in above code if I want to change the delay from 100 to 200 and don't want to connect it to the system or IDE and directly want to change it with the help of a 4x4 keypad or any input device

Then is it possible

:blush:

2

You could store the delay time in EEPROM and write a routine that reads the new value from your keypad perhaps?

3

But I want to make it randomly any from whole numbers

and too want to change any of the parameters like a wave file number from a music player design and etc things

That should be available on LCD and I need to move the cursor where i need to make the change

Smooth access !!! User friendly

4

There is a keyboard library for arduino to work with various keypads - you need to play with that, the examples provided and work out how to change the value of a variable with it .
Then look at how you can display that number on an lcd display .

Alternatively , and easier , you could use a pot to input your delay value. Make the delay value a scaled version of the pot reading .
Again after that you can print that value to the lcd .

5

Do you have google on your internets over there?

try searching

  display adjust parameters lcd keypad arduino

and poke around a bit. You not trying to do anything impossible, what hasn't been done many times before.

a7

6

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.