fear the gas pump!!

codeman · Post by **codeman** » Fri May 05, 2006 8:15 pm

No, it's not about gas prices rising, sorry to disappoint you. It's about sharing my suffering with you. I just finished a course on embedded system design, and our final project was to start from scratch with a processor and a bunch of other decoding/logic chips and build a "gas pump" system. There's a lot of wires!!

I'm just happy i'm done with school for the summer. I figured I'd shove it in your face if you're still in school

Anyone else have insane school projects they've had to suffer through?

Post by **marshallh** » Fri May 05, 2006 8:28 pm

Nice job! I can recognize a couple of eeproms, some logic gates and an 8088 CPU!

Never thought I'd see one of those in commission again

I've got one (as well as a 8048AH) lying around if you're interested.

I'm still in school for 3 more weeks.

I'll be glad when I can take some EE courses at K-State university

Harshboy · Post by **Harshboy** » Fri May 05, 2006 8:31 pm

I get off on 6/6/06 On Monday, i goto Gettysburg

codeman · Post by **codeman** » Fri May 05, 2006 8:52 pm

marshallh wrote: I'll be glad when I can take some EE courses at K-State university

yeah, being an EE major is defintely fun (much better than all those mechanical guys) The only problem is after I'm done getting information crammed down my throat...I'm too burnt out to actually apply it to do anything fun. Maybe that'll change this summer

joevennix · Post by **joevennix** » Fri May 05, 2006 9:12 pm

Harshboy wrote:I get off on 6/6/06 On Monday, i goto Gettysburg

6/6/06, AKA the most evil day on the face of the earth.

Heh

wallydawg · Post by **wallydawg** » Fri May 05, 2006 9:28 pm

joevennix wrote:
Harshboy wrote:I get off on 6/6/06 On Monday, i goto Gettysburg
6/6/06, AKA the most evil day on the face of the earth.
Heh

The world is going to end.

Klefmung · Post by **Klefmung** » Fri May 05, 2006 9:52 pm

marshallh wrote:Nice job! I can recognize a couple of eeproms, some logic gates and an 8088 CPU! Never thought I'd see one of those in commission again I've got one (as well as a 8048AH) lying around if you're interested.

I'm still in school for 3 more weeks.
I'll be glad when I can take some EE courses at K-State university

Kennesaw State University? If so, you live not too far from me. >_> all of the Student Teachers at my school are from KSU

Post by **SpongeBuell** » Fri May 05, 2006 10:40 pm

I've been off since Wednesday (other than a 5 minute test I took yesterday, and a 2 hour test this coming Wednesday) so ha!

HomicidalBarber · Post by **HomicidalBarber** » Sat May 06, 2006 12:54 am

I graduate from High School on 6/7/06. All i really have had is the AP calculus tes, and a physics final probably.

Post by **Skyone** » Sat May 06, 2006 1:04 am

HomicidalBarber wrote:I graduate from High School on 6/7/06. All i really have had is the AP calculus tes, and a physics final probably.

UGH! I hate AP tests!

Extreme_Jesus · Post by **Extreme_Jesus** » Sat May 06, 2006 6:43 am

i got 4 days left, then 3 weeks of exams....bummer....

looks cool, whats the purpose of it?

or is it just a project

Harshboy · Post by **Harshboy** » Sat May 06, 2006 7:01 am

You guys are all in Highschool, that makes me seem stupid because i'm only in Eith Grade

codeman · Post by **codeman** » Sat May 06, 2006 7:23 am

SpongeBuell wrote:I've been off since Wednesday (other than a 5 minute test I took yesterday, and a 2 hour test this coming Wednesday) so ha!

I've been off since Tuesday...with no more tests to take!

@extreme jesus: it's supposed to simulate a gas pump, where you select a payment type and a gas grade and then hold down the button to "pump" the gas, then it scrolls the price on the LED display. Lame, yes, easy, no.

Post by **marshallh** » Sat May 06, 2006 7:32 am

Did you have a choice of what MCU to use? It seems pretty antiquated to use an 8088 when you could use a PIC16F877 and eliminate most of the logic gates as well as the eeproms. At least you learn more using the 8088

Why not use a HD44780 LCD screen instead? If you run one in 4-bit mode, you can get away with 6 IO pins. Some people have used that along with a serial-parallel chip and only 3 pins are needed. I assume the keypad is multiplexed?

calvary3a1 · Post by **calvary3a1** » Sat May 06, 2006 8:13 am

Klefmung, do you live in Atlanta??