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examples_test.go
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/
examples_test.go
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package rgbled_test
import (
"fmt"
"os"
"time"
"github.com/raspberrypi-go-drivers/rgbled"
"github.com/stianeikeland/go-rpio/v4"
)
func Example() {
err := rpio.Open()
if err != nil {
fmt.Println("impossible to init gpio")
os.Exit(1)
}
defer rpio.Close()
rgbLED := rgbled.NewRGBLED(18, 27, 22)
// Switch on the led an set it to lime green
if err := rgbLED.SetColor("#a4eb34"); err != nil {
fmt.Println(err)
os.Exit(1)
}
time.Sleep(3 * time.Second)
// Reduce the brightness to 50%
if err := rgbLED.SetBrightness(50); err != nil {
fmt.Printf("impossible to set LED brightness: %s\n", err)
}
time.Sleep(3 * time.Second)
// Switch off the LED
if err := rgbLED.SetBrightness(0); err != nil {
fmt.Printf("impossible to set LED brightness: %s\n", err)
}
}
func ExampleNewRGBLED() {
err := rpio.Open()
if err != nil {
fmt.Println("impossible to init gpio")
os.Exit(1)
}
defer rpio.Close()
rgbLED := rgbled.NewRGBLED(18, 27, 22)
if err := rgbLED.SetColor("#a4eb34"); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func ExampleRGBLED_SetColor() {
err := rpio.Open()
if err != nil {
fmt.Println("impossible to init gpio")
os.Exit(1)
}
defer rpio.Close()
rgbLED := rgbled.NewRGBLED(18, 27, 22)
if err := rgbLED.SetColor("#a4eb34"); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func ExampleRGBLED_SetBrightness() {
err := rpio.Open()
if err != nil {
fmt.Println("impossible to init gpio")
os.Exit(1)
}
defer rpio.Close()
rgbLED := rgbled.NewRGBLED(18, 27, 22)
// Switch on the led an set it to lime green
if err := rgbLED.SetColor("#a4eb34"); err != nil {
fmt.Println(err)
os.Exit(1)
}
// Reduce the brightness to 50%
if err := rgbLED.SetBrightness(50); err != nil {
fmt.Printf("impossible to set LED brightness: %s\n", err)
}
}