diff --git a/Process of flow chart/The process of LED strip guidance.graphml b/Process of flow chart/The process of LED strip guidance.graphml
index 7e731df2ec8ffd62401d7f0f01530efd175a38ee..7ac698fbb51645899c8fa87325fd35f9412148ae 100644
--- a/Process of flow chart/The process of LED strip guidance.graphml	
+++ b/Process of flow chart/The process of LED strip guidance.graphml	
@@ -22,16 +22,16 @@
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           <y:NodeLabel alignment="left" autoSizePolicy="content" fontFamily="Dialog" fontSize="18" fontStyle="plain" hasBackgroundColor="false" hasLineColor="false" height="290.6728515625" horizontalTextPosition="center" iconTextGap="4" modelName="custom" textColor="#000000" verticalTextPosition="bottom" visible="true" width="487.2841796875" x="20.60791015625" xml:space="preserve" y="68.16357421875">Foot plate as transceiver
 receive data from armrest and send the data to the foot plate
-while(buttonstate ==LOW)
+while(laser state ==LOW)
 {
 LED strip on the foot plate;
 timer interrupt to guide their balance;
-send data to the wall
-send data to the leftarmrest
+send data to the leftarmrest;
+speaker works with timer interrupt;
 }
 else
 {
-laser light start to work
+laser light start to work;
 }
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