Use v4 modules version in examples

examples/blinker/blinker.go

@@ -12,7 +12,7 @@ package main
 
 import (
 	"fmt"
-	"github.com/stianeikeland/go-rpio"
+	"github.com/stianeikeland/go-rpio/v4"
 	"os"
 	"time"
 )

examples/event/event.go

@@ -15,7 +15,7 @@ import (
 	"os"
 	"time"
 
-	"github.com/stianeikeland/go-rpio"
+	"github.com/stianeikeland/go-rpio/v4"
 )
 
 var (

examples/pullup/pullup.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"github.com/stianeikeland/go-rpio"
+	"github.com/stianeikeland/go-rpio/v4"
 	"os"
 )
 

examples/pwm/pwm.go

@@ -12,7 +12,7 @@ package main
 import (
         "os"
         "time"
-        "github.com/stianeikeland/go-rpio"
+        "github.com/stianeikeland/go-rpio/v4"
 )
 
 func main() {

examples/spi/spi.go

@@ -7,7 +7,7 @@ SPI example
 package main
 
 import (
-	"github.com/stianeikeland/go-rpio"
+	"github.com/stianeikeland/go-rpio/v4"
 	"fmt"
 )
 
@@ -22,22 +22,18 @@ func main() {
 
 	rpio.SpiChipSelect(0) // Select CE0 slave
 
-	
 	// Send
-	
 	rpio.SpiTransmit(0xFF)             // send single byte
 	rpio.SpiTransmit(0xDE, 0xAD, 0xBE) // send several bytes
 
 	data := []byte{'H', 'e', 'l', 'l', 'o', 0}
 	rpio.SpiTransmit(data...)          // send slice of bytes
 
-	
 	// Receive
 
 	received := rpio.SpiReceive(5)     // receive 5 bytes, (sends 5 x 0s)
 	fmt.Println(received)
 
-	
 	// Send & Receive
 
 	buffer := []byte{ 0xDE, 0xED, 0xBE, 0xEF }

go.mod

@@ -1,3 +1,3 @@
 module github.com/stianeikeland/go-rpio/v4
 
-go 1.13
+go 1.15