| .. _rgb-led-sample: |
| |
| PWM: RGB LED |
| ############ |
| |
| Overview |
| ******** |
| |
| This is a sample app which drives a RGB LED using PWM. |
| |
| There are three single-color component LEDs in an RGB LED. Each component LED |
| is driven by a PWM port where the pulse width is changed from zero to a fusion |
| flicker threshold (the minimum flicker rate where the LED is perceived as being |
| steady), causing each component LED to step from dark to max brightness. Three |
| **for** loops (one for each component LED) generate a gradual range of color |
| changes from the RGB LED, and the sample repeats forever. |
| |
| Wiring |
| ****** |
| |
| Hexiwear K64 |
| ============ |
| No special board setup is necessary because there is an on-board RGB LED |
| connected to the K64 PWM. |
| |
| Building and Running |
| ******************** |
| |
| This samples does not output anything to the console. It can be built and |
| flashed to a board as follows: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/basic/rgb_led |
| :board: hexiwear_k64 |
| :goals: build flash |
| :compact: |
