LED POV Poi

thingiverse

APA102 LEDs controlled by Teensy 3.1 board deliver variable brightness, delay, and intermission thanks to a custom Android app built with MIT App Inventor 2 over Bluetooth and an HC-05 Module connection. FastLED library powers this amazing setup. https://www.youtube.com/watch?v=p9_Nv5Tiq-Q Instructions: I'll add supporting documentation as I get it ready, bear with me. I've just got this up to apologize for the wait. Parts: Teensy 3.1 HC-05 Wireless Bluetooth Transceiver Module 144 LED/m APA102 LED Strip (1 meter long) Polycarbonate Tubing: ID 1/2", OD 5/8", Wall Thickness 1/16", Clear Color "Lipstick-sized" External battery Power Bank, Dimensions 3.5 x 0.9 x 0.9 inches Zip ties or 1/4" bolts and nuts for the main assembly Software: The Arduino program is "Led_POV_POI.ino". Compile or modify the App Inventor 2 program as "Led_POV_POI.aia" at http://ai2.appinventor.mit.edu. A .Net application, "BitMapConverter.zip", creates byte arrays from bmp files. There are probably better ways to do this, but it worked for my project. Assembly: The main body of the 3D printed parts is fairly easy to put together based on the pictures. You can either print one piece or two pieces; using two gives a sturdier design. Mounting surfaces: "equilateral_10mm_led_mounting_surface" has 3 mounting points (3m tape was used) which stick the LEDs right into polycarbonate tubing. LED Strip Wiring: pin 5 to DI (Data in) pin 6 to CI (Clock in) VUSB from Teensy to 5V on LED Strip GND from Teensy to GND Daisy chain: V, CO, DO, and G for the remaining strips HC-05 Module Wiring: pin 10 to RXD pin 9 to TXD 3V from Teensy to VCC