Add submission # 7156

#7156

Author: ArduinoBot

registry.txt

@@ -8526,3 +8526,4 @@ https://github.com/fermeridamagni/arduino-minimal-ultrasonic.git|Contributed|Min
 https://github.com/k3ldar/NextionControl.git|Contributed|NextionControl
 https://github.com/RobTillaart/logicAnalyzer.git|Contributed|logicAnalyzer
 https://github.com/chipnorm/TM1637.git|Contributed|ChipNorm_TM1637
+https://github.com/DavinderHanda/HandaDigitalSpeaker.git|Contributed|HandaDigitalSpeaker