How to control individual relays using 4x4 keypad with respective no with LCD Display
with respective no with LCD Display
What does that mean?
Learn how to use digitalWrite() to turn relays on and off.
Learn how to input numbers with the keypad and store them in a variable.
Learn how to interface an LCD and write to it.
Put the above together with some if or switch case statements to control the relays and write whatever to the LCD.
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