Add submission # 6611

#6611

Author: ArduinoBot

registry.txt

@@ -8220,3 +8220,5 @@ https://github.com/X-croot/XCR-LDR.git|Contributed|XCR-LDR
 https://github.com/LFranklinApps/Custom_Robot_Control.git|Contributed|Custom_Robot_Control
 https://github.com/npuckett/WebGUI.git|Contributed|WebGUI
 https://github.com/kolod/Arduino-Simple-Modbus-Slave.git|Contributed|SimpleModbusSlave
+https://github.com/EmotiBit/EmotiBit_DSPFilters.git|Contributed|EmotiBit_DSPFilters
+https://github.com/EmotiBit/BrainflowSpO2Algorithm.git|Contributed|BrainflowSpO2Algorithm