High End Pre Group Design Invitation

Status
Not open for further replies.
It is suggested to have an understanding of the project u should go through all the pages.
However, briefly the features are input selection has been shanged from realys to solidstate, input buffers have been placed, and output buffers have also been placed on the circuit.
As of the project right now software is being worked out u know its kinda difficult to develop software for PIC that has input selection logic, LCD, I.R, rotary encoder, PGA chips and QS5.1 chips six channels each controlled seperately.
So kits are being offered "SO FAR".
 
hi

like what Abidr had said we hope to update this thread very soon.

but if you still have any suggestions about the project , please do tell us so we can improved the project very well.


best regards,
ferds
 
Option for 18F is open, as it has more memory than 16F and is pin to pin compatible with 16F877A.
There is no chip replacement for QS5.1, however there is alternate of AFG (which uses MN3101 and MN3008 which is pretty complicated and these chips are almost rare now so theres no real alternate to QS5.1 chip.
ANy one interested in contributing the code, drop me a line at rehanabid@gmail.com
demons_wing, i ll be happy if u could send in ur sample codes at the above email.
 
Hello

I don't see any problems with PIC16F877A, in deed I use PIC16LF877A which is more versatile. Any way, I already tested the code on the real hardware, and its around 3KByte, but have not added the support for QS5.1 and RC5 codes yet, that should not be a problem, becasue I still have 5Kbyte of RAM, which is more than enough for this project in deed, I could say we can also use PIC16F876A, but I don't know what will come up in my mind later on december, so I prefer we all bear in mind that PIC16F877A is the default PIC for this project as it has more I\O pins.

I also use 4 Line LCD, to indicate the volume as a function of bar graph on the first line"Really nice thingy", and the 2nd line to indicate which input is used, the other two lines will indicate the info about QS5.1, and mute condition too 😉

I still don't know which to choose, push buttons for volume control, or rotary encoder, I will wait for suggestions, as the two options are already working for me when I tested the code. you will have for inputs selection ability. I also don't see that all guys already got QS5.1, so I may not use it, I still don't know, and I will wait for you suggestions on this too 🙂

I need you to be patient guys, cause I have a lot of work to do, and I only work on this project when I am free, so I will be able to watch your suggestion till I release some photos of the first prototype on the forum later on december 🙂
 
why not use a stereo motor driven pot from alps?..gives you the option of both IR and manual control?...and the PIC16F877A is a nice processor, regardless of what people might think..if youre into doing floating point math, then i would suggest the ATMega series or maybe a Hitachi processor

AS for RC5 decoding..that isnt too difficult at all..i wouldnt mind having a look at your Q5.1 interface code when you are done if that is ok?...i have most of the code you guys need ie LCD, keypad, RC5..even some onewire and i2c stuff...so if you guys want im more than happy to share...i just need to find the code and comment it 🙂...so be patient
 
Status
Not open for further replies.