Hey guys. I've been busy lately but finally got my pickit2 working and starting to have some ideas. My first thought seems pretty simple. I want to make this: Basically a lock for my door. Doesn't have to be the most secure yet it'll just be fun to build. The LEDs at the top will scroll and the keys will be bought from somewhere I believe. I'm thinking just one of the numpads from walmart and I'll mod it into a different case and stuff. My issue is actually using the chips I program now lol... Once it's programmed can I just pop it into a PCB and give it power then wire the corresponding pins? Or do I have to have some special thing to put it in? Also, that brings up the issue of giving it power, how is this done?? It will be hooked to my computer with USB and will also control a lock through another port to lock my room. Thanks guys, Alex PS. Yes I know I suck at SketchUp haha. Was getting so frustrated I need to watch some videos or something on it.
how is it going? got any further along making it? yes the picture could do with some work, at least without numbers it will be more secure...
Well I got kind of distracted was kinda hoping for some advice towards it but lately I've been working on crap for my car so kind of lost track of this one.
Shouldn't be too difficult, I designed a door lock for someone using only resistors capacitors transistors and a couple off 556 timers (number of 556s = [length of code+1]/2) Pretty simple and fun to design. In the end he didn't want it though.
lol go figure. Maybe I'll pick this idea back up. I'm still interested just like I said, got distracted.
The problem you will have will be to run it through the computer. Dont get me wrong, it can be done. But in order to lock a door, you will need a solenoid that draws enough current to move a physical lock. These use alot of current, and your PC port cannot provide that. You will need an external power supply. Second, if your PC shuts down while you are not in the room, you wont be able to unlock the door. As for USB, check out the thread for the DIY USB LCD controller to get you started.
