Arduino UNO Smart Home Lighting Simulation w/LEDs, HC-05 Bluetooth Module + mBlock 3 [Tutorial]

Important Note #1: There is a NEW, updated version of this tutorial (for mBlock 5 + new HC-05 extension), which can be located here:    • Arduino HC-05: Bluetooth Smart Home L...  

Important Note #2: As of writing the 'Arduino Bluetooth Controller' app from SA Tech (as shown in the video) is no longer available, so if you try and scan the QR code to download to your Android device it will take you to a broken link. The pulling of apps seems to be a common thing on Google Play, particularly for lesser-known apps. You are therefore advised to search for an alternative Bluetooth Controller app that has a Terminal function (most, if not all support this) and an interface for 4+ buttons. There is a link below for an app from Apps Valley which still works and has what you need. In addition, if you want the Arduino IDE version of the code instead of mBlock 3's the link is also below. Good luck!

Link to the Arduino IDE code here (derived from mBlock 3 code): https://drive.google.com/open?id=18lO...
Link to 'Arduino Bluetooth Controller - All in One' from Apps Valley: https://play.google.com/store/apps/de...