// library for TLC5940 PWM driver
#include "Tlc5940.h"
TLC_CHANNEL_TYPE channel;

void setup() {
  Serial.begin(9600);
  Tlc.init(); // 0 - 4095, default = 0
  
  // checking amount of cascaded TLC5940
  Serial.print("NUM_TLCS: ");
  Serial.println(NUM_TLCS);
  // SPI interface mode (SPI / Bitbang) of the TLC5940
  Serial.print("DATA_TRANSFER_MODE: ");
  Serial.println(DATA_TRANSFER_MODE);
}


void loop() {
  if (channel == NUM_TLCS * 16) channel = 0;
  Tlc.clear();
  Tlc.set(channel, 2000);
  Tlc.update();
  channel ++;
  delay(1000);
}