Any updates could we use mcpwm for dimming without flickering?

Hi, after some experiments I was able to set PWM/SYNC with mcpwm in Arudino, seems this works fine but I also try to setup Capture mode, I follow example for mcpwm but I stuck on reading/setting registers, problem is with this lines: static mcpwm_dev_t *MCPWM[2] = {&MCPWM0, &MCPWM1}; it end with er...

//#include <stdio.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "esp_system.h" #include "esp_spi_flash.h" #include "driver/gpio.h" #include "mcpwm1.h" #include "string.h" #include "freertos/queue.h" #include "esp_attr.h" #include "soc/rtc.h" #include "soc/mcpwm_reg.h" #includ...

ESP_Sprite wrote: ↑

Thu Sep 19, 2019 3:32 am

Have you tried looking at the signal with an oscilloscope?

no ihave not tried but i directly connected a bulb , but its flickering a lot

I am trying to make a ac dimmer using esp32 via mcpwm . I have used 4n35 to get zero crossing using it as sync and via phase dimmer i am able to dim the lights but there is lot of flickering . What can i do ? any suggestion is it the fault in esp32? beacause i have tried it with Mega and its working...

Hey I am too trying to make a ac dimmer using mcpwm but their is lot of flickering !, I am using 4n35 optocoupler and getting a smooth wave .