this one worked for me
esp32_camera:
external_clock:
pin: GPIO0
frequency: 20MHz
i2c_pins:
sda: GPIO26
scl: GPIO27
data_pins: [GPIO5, GPIO18, GPIO19, GPIO21, GPIO36, GPIO39, GPIO34, GPIO35]
# the order of the data_pins is significant, don't mix up the order
vsync_pin: GPIO25
href_pin: GPIO23
pixel_clock_pin: GPIO22
power_down_pin: GPIO32
resolution: 800x600
name: boiler-temperature-cam
idle_framerate: 0.1fps
output:
- platform: ledc
pin: GPIO4
channel: 2 # channel 1 is used for esp32_camera
id: led
light:
- platform: monochromatic
output: led
name: espcam_02 light