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DESIGN OF A MICROPROCESSOR BASED AUTOMATIC GATE

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richmon74

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Hi
I've got to build this project urgently.

http://www.akamaiuniversity.us/PJST7_1_31.pdf

the truth is I don't know microprocessors, I've got a little knowledge of microcontrollers

1. Is the info on that link enough 4 me to just build it?
2. what programmer do i use
3. where do I buy this Z80?
4. Can I get the Z80 already programmed with the info on that link?

In short what do I need to get this thing on immediately cos I'm behind time already.

Thanks
 

Better approach would be to get the concept from this project and build it using AVR or PIC microcontrollers for following reasons:

1. Your hardware will be much simpler & cheaper as no external RAM, PIO & EPROM is required.
2. Both controllers are very easy to learn and use.
3. You will find plenty of free tools for these microcontrollers.
4. You will get good support from community if you face any problem.

Many people don’t use microprocessor based design for small applications like this because of above mentioned reasons.
 

dipal_z said:
Better approach would be to get the concept from this project and build it using AVR or PIC microcontrollers for following reasons:

1. Your hardware will be much simpler & cheaper as no external RAM, PIO & EPROM is required.
2. Both controllers are very easy to learn and use.
3. You will find plenty of free tools for these microcontrollers.
4. You will get good support from community if you face any problem.

Many people don’t use microprocessor based design for small applications like this because of above mentioned reasons.

I perfectly agree with u but this will take a long time for me since i'm just a begginer with microcontrollers
I'll appreciate it verywell if someone will take d pains to write the programme 4 me using pic n design d cct to work with it 4 me

Added after 3 minutes:

can i get anywhere to buy the chip already programmed with the information on my link?
 

I can sell you a working unit for you for $800
 

Z80 is an artifact of the past ..
If I were you I would just forget about this name ..
However, if you would like to be very close to this project, you can consider 8051-derivative, for example, the AT89S51 ..
This 51-core microcontroller has the same background as Z80 (developed from 80XX-family) but it has oscillator, RAM and program memory build-in ..
Also, translating existing code wouldn't be difficult:
Instead of LD A, 3Fh you will use MOV A, 3Fh,
Instead of JP Start you will use LJMP Start .. and so on ..
The equation looks like this:
89S51 <=> Z80 + 7414 + 7474 + 2716 + 6116 + 74138+ 7432 + Z80PI0 ..


To make you even more confused, I would construct this project with PICAXE microcontroller, for example the PICAXE-18X ..
PICAXE microcontrollers are basically PIC-based units with BASIC interpreter, so practically someone who is not familiar with microcontrollers can learn how to pogram them in almost no time, and on top of that they can be programmed (burned) using any PC with serial port without external hardware ..
If you need more info on PICAXE go GOOGLE ..

Regards,
IanP
 

csaba411 said:
I can sell you a working unit for you for $800

do u have a working one already or u wanna build one 4 me?
 

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