fix example again

dhalbert · dhalbert · commit 960688c13d74 · 2019-07-18T21:53:39.000-04:00
diff --git a/adafruit_ble/scanner.py b/adafruit_ble/scanner.py
@@ -42,7 +42,7 @@ class Scanner:
 
         from adafruit_ble.scanner import Scanner
         scanner = Scanner()
-        scan_entries = scanner.scan()
+        scan_entries = scanner.scan(3)  # scan for 3 seconds
     """
 
     def __init__(self):
