def set_rgb(self, value=[], offset=0):
"""
Sets (doesn't write out to IC) the given value in the local DC register. Values in 0-255.
"""
if (offset + 3) <= self.numberof_leds:
self.DCLevels[offset:offset + 3] = [self.clamp(value[i] >> 2, 0, 63) for i in range(3)]
return True
else:
logger.warning("Whoopsie.. Cannot address over %i RGB LEDs." % self.numberof_RGBleds)
return False
def fadeto(self, targetlevels=[], offset=0, steps=64, duration=0.2):
"""
Fades linearly to new value, writes to internal register and IC directly.
Usable for any number of LEDs, no specific colour handling.
Foe now no delay nor timing is implemented.
"""
count = len(targetlevels)
if (offset + count) > self.numberof_leds:
logger.warning("Whoopsie.. Cannot address over %i LEDs. Truncating input." % self.numberof_leds)
count = self.numberof_leds - offset
targetlevels = [self.clamp(x >> 2, 0, 63) for x in targetlevels] # scale and boundary confinement
_origlevels = self.DCLevels[offset:(offset + count)] # Save original levels
_deltas = [targetlevels[i] - self.DCLevels[offset + i] for i in range(count)] # Calculate deltas
for i in range(steps + 1): # Do fade loop
scaler = float(i)/steps
self.DCLevels[offset:(offset + count)] = [int(_origlevels[i] + (_deltas[i] * scaler)) for i in range(count)]
self.write_dc(self.DCLevels)
sleep(duration/steps)
