Talking Voltmeter!!

[vmv]

Hi there,

I've found an interesting circuit on techlib.com last day. It's a talking voltmeter (**broken link removed**). It uses PIC16F876-04/SP. I want to build it. But, in my locality that PIC is not available. So, can you suggest any alternative. Can I use PIC16F876A-I/SP? Please suggest me what to do. I've selected this one as a college project for my brother and need to complete it as soon as possible as we are running out of time.

Thanks!!

 

[House0Fwax]

Look at the data sheet, the answers will be there. From my own understanding, either will be fine. Though it is best to check first.

 

[3v0]

Instead of grabbing a project off the net and trying to pass it off as original do a real project.

This would be a good starting point. Use a dsPIC with an ADC of 14 bits and enough memory to hold decent sound. Use Microchips sound libs. That sort of thing.

 

[birdman0_o]

How is you doing a project FOR YOUR BROTHER that has ALREADY BEEN DONE BY SOMEBODY ELSE not plagiarism?

 

[vmv]

A science fair kind of thing is being conducted in his college next week. My bro is interested in electronics. He asked for my help to select any model. There is no compulsion that the project should be our own idea as he is informed by his teacher. He's just an intermediate first year (Grade 11) student.

I've checked the datasheets, pinout is same for both the micros, memory is same. I feel that i can go with 16F876A. What do you guys say, shall I proceed?

 

[dougy83]

The migration guide to the A part is here:
https://www.electro-tech-online.com/custompdfs/2011/05/39591a.pdf

 

[be80be]

There both the same. PIC16F876-04/SP The 4 means it was to use a 4 mhz osc

The 16F876A is just a newer chip basically the changes was it will use up to a 20 mhz osc

Well there is a little more as i just looked at the migration guide to the A I have used both with the same code

dougy83 posted a pdf that had it all in it. have a look you should have no problem using the newer chip.

 

[dougy83]

There both the same. PIC16F876-04/SP The 4 means it was to use a 4 mhz osc

The 16F876A is just a newer chip basically the changes was it will use up to a 20 mhz osc

Strictly, they are not the same. The above migration document outlines the differences. For the purpose of the above project, I don't think the changes will cause an issue however.

 

[vmv]

Thanks a lot dougy83.
Migration guide really helps me. I'll buy 16F876A today and start building it. If I face any problem, I'll come back again.
Thanks guys!!

 

[Joker90]

Bro....i doing tis talking voltmeter (Karen's Corner) alos for my project......now i have the PIC 16F876A..but i dono how to change the coding (can i have you coding pls)