kopia lustrzana https://github.com/espressif/esp-idf
1.3 KiB
1.3 KiB
Component: Light
-
This component defines a light as a well encapsulated object.
-
A light device is defined by:
- ledc timer which is used to control the pwm channels of light
- mode of the ledc timer
- frequency of the ledc timer
- pwm channel number of the light
- bit number of the ledc timer
-
A light device can provide:
- iot_light_channel_regist function to add channel to corresponding channel id
- iot_light_duty_write function to set the duty of corresponding channel and it support setting duty directly or gradually
- iot_light_breath_write function to set the corresponding channel to breath mode and breath period can be set
- iot_light_blink_starte and iot_light_blink_stop function to make some of channels to blink in appointed period. Note that if any channel works in blink mode, all the other channels would be turned off.
-
To use the light device, you need to:
- create a light object returned by iot_light_create()
- regist the light channels according the channel number by iot_light_channel_regist()
- To free the object, you can call iot_light_delete to delete the button object and free the memory.
NOTE:
If any channel(s) work(s) in blink mode, all the other channels would be turned off. iot_light_blink_stop() must be called before setting any channel to other mode(write duty or breath).