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Showing posts with label keypad. Show all posts
Showing posts with label keypad. Show all posts

Monday, September 26, 2016

Home acces using keypad from outside and push button from inside

   I made a system for home acces with delay-off using keypad from outside and push button from inside. I write a sketch for use actuator or solenoid.
   In stand by mode, solenoid (or actuator) is released.
   After I indroduce good code *1234# from keypad actuator is unlocked for 0.7 seconds; about 5 seconds acces is permited, after that actuator is locked for 0.7 seconds. Same cases are when push button from inside.
   If you use solenoid instead actuator, after I introduce good code *1234# from keypad coil solenoid is powered about 5 seconds, after that coil solenoid is released.
   Base test schematic is:
but if you use actuator, schematic is
and if you use solenoid, schematic is
   A comrade, Tommy, made a permanent montage on PCB for actuator:
   I put an alphanumeric LCD1602 display on i2c and an RTC module with DS3231 (or DS1307) and base schematic is:
   If you upload acces_code_keypad_3.ino sketch. in standby mode, on display is hour & date:
and when acces is shared and a open padlock is displayed.
   In movie named door lock acces with code and pushbutton you cand see all I write: