These sketches require the Tlc5940 library, with NUM_TLCS set to 23. You may also need to reduce HardwareSerial RX_BUFFER_SIZE to something like 16 in order to free up more RAM. autonomous.pde: This is autonomous LED controller that implements several simple color cycling algorithms directly on Ardiuno - no host controller is required. All LEDs have the same color. Useful for testing.