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Part 1 of this article covers the basic parts list, code, and assembly. UPDATE (April 2021): The Bluetooth shield used in this Arduino-based project is apparently discontinued. If I were to build this project again today, I’d make it a Raspberry Pi Zero W with Headers (or 3B+) based device. Take note on that order page of the adapter cables and power supply you should also get. The RPi would run a simple Flask (python)…

My daughter is in Beauty and the Beast this spring. So I thought it’d be a good opportunity to test my Internet of Things (IoT) skills using Arduino, Bluetooth and iOS, and build a remote-controlled Enchanted Rose prop which has variable-color lighting and can drop petals on cue. So I contacted the director, volunteered to make the prop, and she was all for it. A variant on this would be to use, say, a Raspberry Pi…