Add submission # 7408

#7408

Author: ArduinoBot

registry.txt

@@ -8724,3 +8724,4 @@ https://github.com/Alby312/AdvancedPID.git|Contributed|AdvancedPID
 https://github.com/raiotech-iot/RAIOT_MQTT.git|Contributed|RAIOT_MQTT
 https://github.com/BojanJurca/Lightweight-Fully-Connected-Neural-Network.git|Contributed|LightweightNeuralNetwork
 https://github.com/jeanloickdt/InstantIoT.git|Contributed|InstantIoT
+https://github.com/leftCoast/LC_SPI.git|Contributed|LC_SPI