diff --git a/CHANGES.txt b/CHANGES.txt
index 67fb4c8..b6fc728 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
-- ISSUE #24: Correction on setDisplayToDecNumber bug (thanks to hbx3485);
+- ISSUE #22: corrected setDisplayDigit repeatedly with the dot set to true;
+- ISSUE #24: Correction on setDisplayToDecNumber bug (thanks to hbx3485).
 
 Version 2.1.1
 
diff --git a/TM1640.cpp b/TM1640.cpp
index 9fa4831..fc5f061 100644
--- a/TM1640.cpp
+++ b/TM1640.cpp
@@ -35,6 +35,12 @@ TM1640::TM1640(byte dataPin, byte clockPin, boolean activateDisplay, byte intens
 void TM1640::sendChar(byte pos, byte data, boolean dot)
 {
   sendData(pos, data | (dot ? 0b10000000 : 0));
+  
+  // necessary for the TM1640
+  digitalWrite(strobePin, LOW);
+  digitalWrite(clockPin, LOW);
+  digitalWrite(clockPin, HIGH);
+  digitalWrite(strobePin, HIGH);
 }
 
 void TM1640::clearDisplay()