Hi there,
Yep , that’s a C3 
Good Job… LOL 
this is the GOLD.
" if (esp_deep_sleep_enable_gpio_wakeup(WAKE_PIN_LOW_MASK, ESP_GPIO_WAKEUP_GPIO_LOW) == ESP_OK) {"
GL 
PJ 
Which BSP did you use , If I may ask?
Hi there,
Yep , that’s a C3 Good Job… LOL
this is the GOLD.
" if (esp_deep_sleep_enable_gpio_wakeup(WAKE_PIN_LOW_MASK, ESP_GPIO_WAKEUP_GPIO_LOW) == ESP_OK) {"
GL PJ
Which BSP did you use , If I may ask?