Conceptual idea: RFID solenoid door lock
Moderator:Moderators
well,
as all you know security and privacy is important.
So, picture this!
you walk up to your room there is no handle on the door, you swipe a tiny keyfob a small green light glows you hear a click and the door is able to easily swing open.
But what if you forget your RFID tag? simple! you swing open a tiny panel (in the floor (under the carpet) and you type a super secret code and the door swings open.
Simple conceptual block diagram:
RFID scanner: The scanner i plan to use is this one
Relay: Probably a 2A relay
Solenoid: This will be a custom built setup the solenoid will operate a deadbolt lock
Microprocessor: This will probably be a PIC16F84
Keypad: Something like This which will interface with the microcontroller to operate the relay. Or something like this
Reed switch: When the dorr is open the solenoid is not out but when the reed switch is closed the solenoid locks again.
The other componnent i would need would be something on the inside to open the door from the inside.
Questions:
Could anyone write the program for the microcontroller?
what would be the best microcontroller to use?
How could i make the keypad work?
How could i increase the signal strength of the RFID reader?
Thanks for the help everyone!
EDIT: or i could use something like this
as all you know security and privacy is important.
So, picture this!
you walk up to your room there is no handle on the door, you swipe a tiny keyfob a small green light glows you hear a click and the door is able to easily swing open.
But what if you forget your RFID tag? simple! you swing open a tiny panel (in the floor (under the carpet) and you type a super secret code and the door swings open.
Simple conceptual block diagram:
RFID scanner: The scanner i plan to use is this one
Relay: Probably a 2A relay
Solenoid: This will be a custom built setup the solenoid will operate a deadbolt lock
Microprocessor: This will probably be a PIC16F84
Keypad: Something like This which will interface with the microcontroller to operate the relay. Or something like this
Reed switch: When the dorr is open the solenoid is not out but when the reed switch is closed the solenoid locks again.
The other componnent i would need would be something on the inside to open the door from the inside.
Questions:
Could anyone write the program for the microcontroller?
what would be the best microcontroller to use?
How could i make the keypad work?
How could i increase the signal strength of the RFID reader?
Thanks for the help everyone!
EDIT: or i could use something like this
Penn & Teller wrote:It's BULLS#%@
I believe a company adverts in discovery or popsci or one of those science-ey mags an rfid lock mechanism. It uses RFID and has an access program for a PC. It seems to use regular handles, and key-shaped rfid tags. Basically, a simple RFID solution for the non-electronical-engineer home user.
Shhh! I'm not officially back yet.
Luckily the reader/tag dont need programming (check the link)
I think it will work however i have no idea how to deal with the keypad...Anyone know how to work with PIC's well enough to help me?
I have scavenged a whole bunch of pinball solenoids and have been hooking them up to power to see them go (ouch they hurt!) they are a bit loud but when i wrap them in foam they are quite quiet.
My only worry is catastrophic system failure (my room being uncaccessable) and i havent figured out how to prevent this yet.
I think it will work however i have no idea how to deal with the keypad...Anyone know how to work with PIC's well enough to help me?
I have scavenged a whole bunch of pinball solenoids and have been hooking them up to power to see them go (ouch they hurt!) they are a bit loud but when i wrap them in foam they are quite quiet.
My only worry is catastrophic system failure (my room being uncaccessable) and i havent figured out how to prevent this yet.
Penn & Teller wrote:It's BULLS#%@
what non-salvagable tables are you getting these from?*o* wrote: I have scavenged a whole bunch of pinball solenoids and have been hooking them up to power to see them go (ouch they hurt!) they are a bit loud but when i wrap them in foam they are quite quiet.
Also, about catastrophic system failure, just set it so that battery dead= unlocked. Or, better idea, just use a nice, big sledgehammer.
This is totokan, reminding you to protect pinball!
Shhh! I'm not officially back yet.