diff --git a/sources/tech/20190310 Let-s get physical- How to use GPIO pins on the Raspberry Pi.md b/sources/tech/20190310 Let-s get physical- How to use GPIO pins on the Raspberry Pi.md
index d22887e15f..24a5282ef1 100644
--- a/sources/tech/20190310 Let-s get physical- How to use GPIO pins on the Raspberry Pi.md	
+++ b/sources/tech/20190310 Let-s get physical- How to use GPIO pins on the Raspberry Pi.md	
@@ -1,5 +1,5 @@
 [#]: collector: (lujun9972)
-[#]: translator: ( )
+[#]: translator: (qhwdw)
 [#]: reviewer: ( )
 [#]: publisher: ( )
 [#]: url: ( )