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You are here: Home / Replies / if the keypad is connected to

if the keypad is connected to

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Electronics › Electronics › some questions about the project “Electronic code lock with user defined password using 8051 microcontroller (AT89C51)” › if the keypad is connected to

May 10, 2011 at 6:49 pm #6142
SaLMAN Ahmed Khan
Participant

if the keypad is connected to PORT 0 OF 8051 then you must need to connect these resistors as they work as pull up ……

 

but you can use the other port to interface keypad .

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