problem in LCD and CIRCUIT in "Keypad based simple electronic lock using 8051 microcontroller (AT89C51)
do i need a separate code for lcd and keyboard interfacing as well.
I would really appreciate if i could get few inputs on this.pls
Your problem in LCD contrast controll circuit. Have you use any preset in pin no. 3 of LCD. If yes, then controll it your letters will be illuminated.
i think there is need for connecting capacitors across the crystal oscillator.just go through connections for crystal oscillator in any standard text like AYYALA.it may help u a lot
There is no need to connect crystal in proteus just double click on the controller and specify the frequency. Proteus is just a simulator software if and all the codes on the web are tested with real hardware. try to use LCDs power pins also.
for better results post your codes also.
Hi all,can someone help me with this code but writing it in Salford C,i was asked to write the electronic lock keypad simulation program,anybody willing to help me email me at firstname.lastname@example.org ;;;;;PLIS HELP ME WITH THIS PROGRAM BUT IN SALFORD C.