examples: modify FindMy example so you can run it from Linux command …

…line as well as on MCUs

Signed-off-by: deadprogram <[email protected]>

examples/findmy/main.go

@@ -4,6 +4,9 @@
 //
 // To build:
 // tinygo flash -target nano-rp2040 -ldflags="-X main.PublicKey='SGVsbG8sIFdvcmxkIQ=='" ./examples/findmy
+//
+// For Linux:
+// go run ./examples/findmy SGVsbG8sIFdvcmxkIQ==
 package main
 
 import (
@@ -16,9 +19,6 @@ import (
 
 var adapter = bluetooth.DefaultAdapter
 
-// PublicKey is the public key of the device. Must be base64 encoded.
-var PublicKey string
-
 func main() {
 	time.Sleep(2 * time.Second) // wait for USB serial to be available
 

examples/findmy/mcu.go

@@ -0,0 +1,6 @@
+//go:build tinygo
+
+package main
+
+// PublicKey is the public key of the device. Must be base64 encoded.
+var PublicKey string

examples/findmy/os.go

@@ -0,0 +1,8 @@
+//go:build !tinygo
+
+package main
+
+import "os"
+
+// PublicKey is the public key of the device. Must be base64 encoded.
+var PublicKey = os.Args[1]