Initial commit of my sample files

Author: ddrager

example.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+  "fmt"
+  "github.com/ddrager/go-pi-blaster"
+)
+
+
+
+func main() {
+  fmt.Printf("Running\n")
+  a := []int64{17, 22, 24}
+
+  var b piblaster.Blaster
+
+
+  b.Start(a)
+  b.Apply(17, 1.1);
+
+  b.Apply(22, -7.0);
+
+  b.Apply(24, .56);
+
+  b.DumpCurrent();
+}

led-cycle.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+  "os"
+  "os/signal"
+  "time"
+  "fmt"
+  "github.com/ddrager/go-pi-blaster"
+)
+
+const redPin = 17
+const greenPin = 22
+const bluePin = 24
+
+const jump = 5
+
+
+var a []int64
+var b piblaster.Blaster
+
+func setRGB(red int64, green int64, blue int64) {
+  b.Apply(redPin, float64(red)/255.0)  
+  b.Apply(greenPin, float64(green)/255.0)
+  b.Apply(bluePin, float64(blue)/255.0)
+}
+
+func main() {
+  fmt.Printf("Running\n")
+  var red int64 = 255
+  var green int64 = 0
+  var blue int64 = 0
+  a := []int64{redPin, greenPin, bluePin}
+
+  b.Start(a)
+
+  c := make(chan os.Signal, 1)
+  signal.Notify(c, os.Interrupt)
+
+
+  // main loop
+  go func() {
+    timer := time.Tick(time.Millisecond * 1)
+    for _ = range timer {
+      if red >= 255 && blue <= 0 && green < 255 {
+        green = green + jump
+      } else if green >= 255 && blue <= 0 && red > 0 {
+        red = red - jump
+      } else if red <= 0 && green >= 255 && blue < 255 {
+        blue = blue + jump
+      } else if red <= 0 && blue >= 255 && green > 0 {
+        green = green - jump
+      } else if green <= 0 && blue >= 255 && red < 255 {
+        red = red + jump
+      } else if red >= 255 && green <= 0 && blue > 0 {
+        blue = blue - jump
+      }
+      setRGB(red, green, blue)
+      //fmt.Printf("Red: %d, Green: %d, Blue: %d\n", red, green, blue)
+    }
+  }()
+
+  //time.Sleep(time.Millisecond * 15000)
+
+    for sig := range c {
+      fmt.Printf("captured %v, exiting..", sig)
+      //b.DumpCurrent();
+      b.Reset();
+      os.Exit(1)
+    }
+
+
+}

static/favicon.ico

@@ -0,0 +1,123 @@
+package main
+
+import (
+  "os"
+  "os/signal"
+  "time"
+  "fmt"
+  "github.com/ddrager/go-pi-blaster"
+
+  "net/http"
+  "github.com/zenazn/goji"
+  "github.com/zenazn/goji/web"
+)
+
+const (
+  redPin = 17
+  greenPin = 22
+  bluePin = 24
+
+  jump = 17
+
+  staticFilesLocation = "/home/pi/gocode/src/github.com/ddrager/go-pi/static"
+)
+
+var (
+  a []int64
+  b piblaster.Blaster
+  control int = 0
+)
+
+func setRGB(red int64, green int64, blue int64) {
+  b.Apply(redPin, float64(red)/255.0)  
+  b.Apply(greenPin, float64(green)/255.0)
+  b.Apply(bluePin, float64(blue)/255.0)
+}
+
+// cycle colors
+func cycle(c web.C, w http.ResponseWriter, r *http.Request) {
+
+  // set initial colors
+  var red int64 = 255
+  var green int64 = 0
+  var blue int64 = 0
+
+  control = 1
+
+  // main loop
+  go func() {
+    timer := time.Tick(time.Millisecond * 30)
+    for _ = range timer {
+      if red >= 255 && blue <= 0 && green < 255 {
+        green = green + jump
+      } else if green >= 255 && blue <= 0 && red > 0 {
+        red = red - jump
+      } else if red <= 0 && green >= 255 && blue < 255 {
+        blue = blue + jump
+      } else if red <= 0 && blue >= 255 && green > 0 {
+        green = green - jump
+      } else if green <= 0 && blue >= 255 && red < 255 {
+        red = red + jump
+      } else if red >= 255 && green <= 0 && blue > 0 { 
+        blue = blue - jump
+      } 
+      setRGB(red, green, blue)
+
+      if control == 0 { break }
+
+      //fmt.Printf("Red: %d, Green: %d, Blue: %d\n", red, green, blue)
+    }   
+  }() 
+}
+
+func clear(c web.C, w http.ResponseWriter, r *http.Request) {
+  stopAndClear()
+  setRGB(0, 0, 0)
+}
+
+func stopAndClear() {
+  control = 0
+  // allow running processes to stop
+  time.Sleep(100 * time.Millisecond)
+  b.Reset();
+}
+
+func menu(c web.C, w http.ResponseWriter, r *http.Request) {
+  fmt.Fprintf(w, "Hello, %s!", c.URLParams["name"])
+}
+
+func main() {
+  fmt.Printf("Running\n")
+
+  // set initial pins and start interface
+  a := []int64{redPin, greenPin, bluePin}
+  b.Start(a)
+
+  control = 1
+
+  // reset pins when program ends
+  c := make(chan os.Signal, 1)
+  signal.Notify(c, os.Interrupt)
+
+  fmt.Printf("Launching web server...\n")
+  
+  // web functionality
+  goji.Get("/hello/:name", menu)
+  goji.Get("/cycle", cycle)
+  goji.Get("/clear", clear)
+  
+
+  goji.Handle("/*", http.FileServer(http.Dir(staticFilesLocation)))
+  goji.Serve()
+
+  // capture control c, probably a better way to do this
+  //time.Sleep(time.Millisecond * 15000)
+  for sig := range c {
+    fmt.Printf("captured %v, exiting..", sig)
+    //b.DumpCurrent()
+    stopAndClear()
+    os.Exit(1)
+  }
+
+
+}