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Step 1The circuit diagram
The circuit is very simple and consists of just four components: the battery, microcontroller, piezo speaker and switch.
The switch (not shown in the diagram) is just two strips of metal pressed together, with a piece of paper in between. As the card is opened, the paper is pulled away and the two contact each other, thus closing the circuit.
A fragment of the code is shown, too. The program takes up 56 locations in memory. The PIC10F200 has 256 such locations available. A melody consisting of 200 notes or so can be fitted in to this chip.
This should be sufficient for a musical greeting card.
The switch (not shown in the diagram) is just two strips of metal pressed together, with a piece of paper in between. As the card is opened, the paper is pulled away and the two contact each other, thus closing the circuit.
A fragment of the code is shown, too. The program takes up 56 locations in memory. The PIC10F200 has 256 such locations available. A melody consisting of 200 notes or so can be fitted in to this chip.
This should be sufficient for a musical greeting card.
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i have try to search it on google but i was getting only sites of dealers & greeting card sellers.
i have read like that they are using either voice recorder IC or micro-controller.
how can i load music files or my own voice in that chip.
is there any software for loading file in it then which format it supports.??
can anyone please tell me how i can get detail of circuit of musical greeting card.
thanking you all in advance...!!