Musical Greeting Card

Step 7 Program the melody

The melody is in the form of a HEX file and will have to be programmed into the device. You can use any of the PIC programmers avalilable out there, they need five connections to be made to the chip, as shown.

The Hex file for the tune of "Go Tell it on the Mountain" is provided here.

Comments

[kamlesh2012]

can nyone oplz tell me whether i can do this project on atmega 16 microcontroler or not?i have a little knowledge on PIC10F.so can i write d program in my atmega 16 microcontroller?what will be d exart code 4 this??urgent,valentine day is coming nearer..n i have 2 complete it b4..plz understand d situation.... 

[preethikadinesh]

can i write program to tell the names.is it possible.

[3XTR3M1ST]

where can i get the software and hardware to reprogram my musical module from a greetings card?

[neelandan]

Nowhere. You can't reprogram the module in a greetings card. What you can do is to get a six pin PIC from Microchip, program it to play the melody you want and stick it in place of the module in a greetings card.

[DesertE]

Do you know if those pins can be programmed with more than a simple melody. I am thinkin of a full 3-5 minute song with vocals and all.

[neelandan]

I think it can be done with a "high end" micro - one with a megabyte or so of programmable memory, into which you can store your digitised song and a small program to play it back. That sort of chip will have typically eighty to a hundred pins in a quad flat pack - that is, a square chip with twenty to twentyfive leads on each side.

[Derin]

or lo-end with some 1 wire eproms

[3XTR3M1ST]

i did some googling and found out that there are reprogrammable PIC chips out there. is it possible that the chip from my music card is reprogrammable? if i were to get a new module, where can i get the necessary hardware that connects my computer to the card to program it?

[neelandan]

I have never seen a reprogrammable music module in a store bought greeting card. My way of building your own is the only way to go if you want a customised tune in your card.

[3XTR3M1ST]

where can i get the necessary hardware that connects my computer to the card to program it? can you give me the specific name of that hardware.?

[nil0lab]

google "pic programmer"

[Scoticus1]

Pretty much all pic microcontrollers are dead easy to reprogram, the problem is that when they're programmed at the factory, they can set a bit high that makes the chip unreadable, to prevent a company from stealing another company's code, unfortunately it also makes it unwriteable.