Add submission # 6578

#6578

Author: ArduinoBot

registry.txt

@@ -8197,3 +8197,4 @@ https://github.com/sensebox/SerialSDManager.git|Contributed|SerialSDManager
 https://github.com/edovis/TMP126.git|Contributed|TMP126
 https://github.com/X-croot/L298N-XCR.git|Contributed|L298N-XCR
 https://github.com/kkfranco98/FIR_Filters.git|Contributed|FIR_Filters
+https://github.com/AbdulKus/72x40oled_lib.git|Contributed|72x40oled_lib