Hi The_Praiodanish
Is DMA for sending necesary?
If not, try sending without DMA.

Regards

I'm sorry!
I double checked and LEDC_INTR_MAX is not declared

Hi jilderoui I' m facing very similar problem and I think the issue can be the ESP-IDF release you are using. I compiled your code in Platformio with same results: src\main.cpp: In function 'void initlecd()': src\main.cpp:23:29: error: 'LEDC_INTR_MAX' was not declared in this scope. In release 3.3, ...

Or a more defined question:
How can I integrate ledc_intr_type_t with the code attached in my last post?
So that it only update pwm frequency when LEDC Counter reaches max count, LEDC_INTR_MAX?

Hello to every one. I'm trying set LEDC frequency and PWM on the fly and the code works but not the way I'm expecting, there are bumps or glitches every time de frequency gets changed and also the PWM has glitches but is a little less notorious. For both Frequency and PWM I need a glitch free transi...

Hi
Maybe 1.92v is to low for the expected threshold 3v? try shifting the PWM high signal with gates, 2 NPN transistors in series as gates
or something similar. I attached a drawing that works for me . The common GND for both sides can be omitted if you want to isolate the MCU.
Hope this help