tracking led bootfile

pi/boot.go

@@ -0,0 +1,58 @@
+// =============================================================================
+// Auth: dodd
+// File: boot.go
+// Revn: 06-23-2022  0.1
+// Func: Blink a light when the pi boots (or on login, but who cares)
+//
+// TODO: create
+// =============================================================================
+// CHANGE LOG
+// -----------------------------------------------------------------------------
+// 06-23-2022: init
+//
+// =============================================================================
+
+package main
+
+
+import (
+    "fmt"
+    "github.com/stianeikeland/go-rpio"
+    "os"
+    "time"
+)
+
+
+/*
+Toggles a LED on physical pin 19 (mcu pin 10)
+Connect a LED with resistor from pin 19 to ground.
+*/
+
+
+// Use mcu pin 10, corresponds to physical pin 19 on the pi
+var pin rpio.Pin
+
+
+func main() {
+
+    pin = rpio.Pin( 10 )
+    // Open and map memory to access gpio, check for errors
+    if err := rpio.Open(); err != nil {
+        fmt.Println( "Fatal: pin open failed" )
+        fmt.Println( "Error: ", err.Error() )
+        os.Exit(1)
+    }
+
+    // Unmap gpio memory when done
+    defer rpio.Close()
+
+    // Set pin to output mode
+    pin.Output()
+
+    // Toggle pin 2 times
+    for i := 0; i < 4; i++ {
+        pin.Toggle()
+        time.Sleep(time.Second / 10)
+    }
+}
+