Hi everyone,
I've written this little python script to control the brightness in several LED1642GW drivers connected in daisy chain. According to their Application Note, at page 4, it says you have to send 16 words of 16 bits where the first 15 must have a "Brightness data latch" while the last one must have a "Brightness global latch".
My question actually is what those 16 words mean? Does they mean the brightness level? According again to the Application Note... at page 10 the default value of CFG-15 is "0", which means that "16-bit brightness register (65536 grayscale brightness steps)" is selected. So ... I think I should see some brightness variation when I send some different value than 0xFFFF (65535).
The point is that I see always the same brightness level regardless of the value I send. Nevertheless, I have to set the brightness because otherwise LEDs will not turn on when I send the write switch.
What do you think? Am I misunderstanding the protocol to set up the brightness?
Thank you all.
