Add submission # 2518

#2518

Author: ArduinoBot

registry.txt

@@ -5706,3 +5706,4 @@ https://github.com/SpaceTrekKSC/BQ25887.git|Contributed|BQ25887
 https://github.com/fanfanlatulipe26/XGZP6897D.git|Contributed|XGZP6897D
 https://github.com/ExperimentalCyborg/PicoStep.git|Contributed|PicoStep
 https://github.com/Beirdo/Arduino-TCA9534.git|Contributed|TCA9534-GPIO
+https://github.com/drf5n/Arduino-PID-Library.git|Contributed|PID_v1_bc