Creates a sort of malleable stack for handling note on and off actions.
- /bringup - Example sketches for the library (.ino). Run these from the Arduino IDE.
- /unitTest - Misc exercises.
The pile starts empty
| myNotePile |
|---|
| Key A4 is pressed |
| myNotePile |
| --- |
| Note A4 |
| Key C4 is pressed |
| myNotePile |
| --- |
| Note C4 |
| Note A4 |
| Key E4 is pressed |
| myNotePile |
| --- |
| Note E4 |
| Note C4 |
| Note A4 |
| Key C4 is released. The stack is searched and C4 destroyed. |
| myNotePile |
| --- |
| Note E4 |
| Note A4 |
| Key A4 is released. The stack is searched and A4 destroyed. |
| myNotePile |
| --- |
| Note E4 |
| Key E4 is released. The stack is searched and E4 destroyed. |
| myNotePile |
| --- |
| Note A4 |
| The pile is empty again |
| myNotePile |
| --- |
The stackDepthVar is just a uint8_t
| typedef uint8_t stackDepthVar |
|---|
Note structure (can be extended with extra data)
| struct pNote |
|---|
| int8_t noteValue |
| int8_t noteVelocity |
| int8_t notePlaying |
| pNote * lowerPNote |
Class structure
| class NotePile | Comment |
|---|---|
| stackDepthVar maxDepth | |
| stackDepthVar currentDepth | |
| pNote * topPNote | A pointer to the upper most note |
| pNote nullNote | special null identification |
| NotePile( stackDepthVar ) | Construct with passed max depth |
| NotePile( void ) | |
| void pushNote( pNote & ) | Pass pNote |
| pNote popNote( void ) | returns pNote |
| pNote peekNote( void ) | |
| pNote peekNote( stackDepthVar ) | |
| void dropNote( stackDepthVar ) | Pass position, returns pNote |
| int8_t seekNote( pNote & ) | pass pNote, returns position |
| stackDepthVar stackDepth( void ) | returns depth of stack. |
| void printfNotePile( void ) |
This example converts poly input to mono giving priority to the last pressed key. It outputs midi of that key, with a poor algorithm that potentially retriggers previously mutued keys when unmuting them.
Serial data comes out through the software serial port (you'll need somthing that can read serial off the pins). It reports the remaining memory between the heap and the top of stack using Arduino freeRam().
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