This little album details my Stranger Things light wall halloween costume.
The costume uses an Adafruit LED strand, Arduino Nano, Bluetooth receiver, battery and other components to allow the shirt to be wearable and accept different messages and light patterns. The instructions are sent from a Bluetooth terminal on my phone over a serial connection to the Arduino Nano. Some cobbled together Arduino code runs the whole thing.
The costume spelling out its classic message
The LEDs are sewn onto a simple beige sweater and connect to an enclosure I made to house the power and electronics.
The finished costume laid out
The costume on my skinny frame
The inside of the shirt showing the stitching for the LEDs
Commands are sent using a Bluetooth terminal on my cellphone. I personally use one titled 'Bluetooth Terminal' from the Google Play Store but any Bluetooth serial terminal that can send text strings should suffice. Sending a text string adds it to the buffer to be spelled out. Sending '*' resets the text to blank for a new message. The following commands run a few patterns I programmed into the costume:
'%' = 3 blinks, '&' = Random blinks, '$' = Rapid blinks, '#' = Cascade
**The code only works with lower case letter input atm**
A detail of the Bluetooth terminal I prefer (from Play Store) and some sample input
The electronics are housed in a small 3D printed enclosure of my design. A little bit of custom PCB work handles the interconnects from the Arduino nano to the Bluetooth module and LED strand. See the schematic section for more info.
Control box with external 12V battery
Internal view of the control box with all components wired