Can some one assist me, as I need LCD 16x2 and 4x4 Keypad with UNO board to drive LED. Once I will enter password the LED will switch ON . And if I enter password again it become OFF like toggle mode.
By default it will be in off mode.
Looking forward for your support.
What have you tried? Reading a value from the keypad is simple. Storing the value in an array, in the proper position is simple. Comparing two arrays (the entered value and the proper value) is one line of code. Turning an LED on is one line of code. Turning an LED off is one line of code.
Dear I am beginner so if you can send me write up plz. Would be great help.
if you can send me write up plz. Would be great help.
You send me your LCD, your Arduino, your keypad, your LED (and resistor), and $100US, and I'll to just that.
Don't worry, I'll send everything back, except the money. 8)
Here you have a code that does almost everything you want.
I found that site good when I was a total Arduino noob.