I solved the flickering Issue for WIFI / BT OFF. I had to adjust the number of NOPs in the TLC5973.cpp to fit the Timing.

void TLC5973::writeZero(){
pulse();
NOP;
NOP;
NOP;
NOP;
}

void TLC5973::writeNone(){
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
NOP;
}

But still while WIFI /BT ON there ...

Hello everyone,

I’m facing issues with the TLC5973 LED driver when paired with the WT32-ETH01 microcontroller. In my project using Arduino I use the TLC5973 to control LEDs. When I try dimming just one color, everything works perfectly. However, as soon as I dim two or three colors, at high ...