Controlling 20 12V Solenoid Locks with Keypad & RFID, No PC, WiFi Option?

I am a creative mind although my knowledge of electro- engendering is almost zero (I am an anesthesiologist.). I am an eager learner and persistent enough, tough.

I must accomplish this project:
Control individually a set of 20 solenoid locks that should be energized at 12 V to open for 20 s. Once they are selected from a keypad (after a RDFI card identification). I must have an idea of the software and hardware needed.

This "unit" of 20 solenoids and its interface to open doesn't necessarily need to be linked to a PC, in fact I would rather avoid having to need a PC (€€€) at all. Having after the chance to WiFi this functioning data would be the ultimate challenge.

Other parallel circuit was to have a tag sensor in each slot (lock) , that would recognize the tag entering the lock each time it mechanically locks, and generating the due event code, and of course when the lock (slot) was empty.

Thanks for all the help you can give
Regards

Hi Pedro,

If you are persistent enough, try the design from this link - http://schematics.com/project/smart-climate-control-system-10149/ . The design is for home automation that you can easily vary it by adding push buttons or controller device tapped in the micro-controller if you want it with a stand alone controller.

All you need to do is to generate the codes and burn it into the micro-controller(87C51) using terminal programs and code compilers such as uVision 3 and Flash Magic. There are several tutorials about those two tools in the net or you can check it on youtube for visual tutorials. You can also used arduino uno as a microcontroller which it has its own code compiler.

For the 12V supply requirement, you can simply use 12V relay to meet that requirement.

Good Luck


Best,
Neil