|
- /*
- Setting grayscale from progmem to save RAM. If you want to play
- multiple "frames", (an animation), see the BasicAnimations Example.
-
- See the BasicUse example for hardware setup.
-
- Alex Leone <acleone ~AT~ gmail.com>, 2009-02-03 */
-
- #include "Tlc5940.h"
-
- // Extended functions (they start with tlc_...) require another include
- #include "tlc_progmem_utils.h"
-
- /*
- This is an array in program memory. Program memory is 16kB instead of
- 1024 bytes for regular variables in SRAM.
-
- The format for this array is
- GS_DUO(OUT15, OUT14), ... GS_DUO(OUT1, OUT0)
-
- If you have more than one TLC, the format is
- GS_DUO(TLC2.OUT15, TLC2.OUT14), ... GS_DUO(TLC2.OUT1, TLC2.OUT0),
- GS_DUO(TLC1.OUT15, TLC1.OUT14), ... GS_DUO(TLC1.OUT1, TLC1.OUT0)
-
- The pattern below will only work with 1 TLC. Copy + Paste the 4 lines
- inside the curly brackets for each additional TLC. */
-
- const unsigned int TlcMax = 4095;
-
- const uint8_t gsArray1[NUM_TLCS * 24] PROGMEM = {
- GS_DUO((TlcMax * 16)/16, (TlcMax * 15)/16), GS_DUO((TlcMax * 14)/16, (TlcMax * 13)/16),
- GS_DUO((TlcMax * 12)/16, (TlcMax * 11)/16), GS_DUO((TlcMax * 10)/16, (TlcMax * 9)/16),
- GS_DUO((TlcMax * 8)/16, (TlcMax * 7)/16), GS_DUO((TlcMax * 6)/16, (TlcMax * 5)/16),
- GS_DUO((TlcMax * 4)/16, (TlcMax * 3)/16), GS_DUO((TlcMax * 2)/16, (TlcMax * 1)/16),
- };
-
- void setup()
- {
- Tlc.init();
- }
-
- void loop()
- {
- // Display the pattern (brightness ramp over the outputs)
- tlc_setGSfromProgmem(gsArray1);
- Tlc.update();
-
- // Fade each channel to zero
- for (TLC_CHANNEL_TYPE channel = 0; channel < NUM_TLCS * 16; channel++) {
- int16_t initialValue = Tlc.get(channel);
- while (initialValue > 0) {
- initialValue -= 5;
- if (initialValue < 0) {
- initialValue = 0;
- }
- Tlc.set(channel, initialValue);
-
- // wait until the data has been sent to the TLCs before continuing
- while (Tlc.update());
- }
- }
- }
|
