Jump to content
Electronics-Lab.com Community

Parking Lot Counter Question


Recommended Posts

I'm a new user here, and I was just wondering about how to make a counter to fit my assignment which is as follows:

Parking Lot: A parking attendant needs to keep track of vehicles entering and exiting a parking lot in order to allow a maximum of 50 vehicles to be in the lot at any given time.  Design a circuit that allows the attendant to add or subtract vehicles as they enter and exit the lot (push one button to add, push another to subtract).  Include a design where if the total number of vehicles equals 50, a flashing (1Hz, 75%DC) “Lot Full” sign that’s provided will be lit.  The attendant may not increase the number beyond 50, or decrease the number below 0.  Include numerical displays with your design.  Also, you need to keep track of the total number of vehicles that have entered the lot for the day (maximum 99).  A reset is required to start the day with 00 cars.  

I'd appreciate any input, I decided the easy way to do this would be to use the 74192 counter, but I'm not too sure how to implement it, as we haven't really discussed it in class. I'm guessing I'd also need to divide down the input frequency as well.


Link to comment
Share on other sites

  • 3 weeks later...

HEY all of you!
can u believe me nothing is required(hardware)
for such a project but just a few LEDs and that too during the debugging of the simple software u write for it.although some hardware may be required if u wish to have automation.but if the attendant is ready to push a computer key,then that can easily increment car count in my software written in "C" and can also be decremented,at every key my software checks if the count has reached the parking place limit,if it has,then send a high at computer port which is sufficient to switch on a LED or a relay(for an alarm)HOWZ THAT? ;)

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...