replaced by PartyColors_p

add one byte to another, with one byte result

add one byte to another, with one byte result

Add two numbers, and calculate the modulo of the sum and a third number, M. In other words, it returns (A+B) % M. It is designed as a compact mechanis

LPD8806 spec wants the high bit of every rgb data byte sent out to be set.

Calculate an integer average of two signed 15-bit integers (int16_t) If the first argument is even, result is rounded down. If the first argument is o

inlined copy of avg15 for AVR with MUL instruction; cloned from math8.h Forcing this inline in the 3-D 16bit noise produces a 12% speedup overall, at

Calculate an integer average of two unsigned 16-bit integer values (uint16_t). Fractional results are rounded down, e.g. avg16(20,41) = 30

Calculate an integer average of two unsigned 8-bit integer values (uint8_t). Fractional results are rounded down, e.g. avg8(20,41) = 30

beatsin16 generates a 16-bit sine wave at a given BPM, that oscillates within a given range.

beatsin8 generates an 8-bit sine wave at a given BPM, that oscillates within a given range.

beatsin88 generates a 16-bit sine wave at a given BPM, that oscillates within a given range. For this function, BPM MUST BE SPECIFIED as a Q8.8 fixed-

inverse of the dimming function, brighten a value

inverse of the dimming function, brighten a value

inverse of the dimming function, brighten a value

bseconds16 returns the current time-since-boot in "binary seconds", which are actually 1024/1000 of a second long.