Spirit Halloween proton pack smoke and other upgrades

thingiverse

https://youtu.be/6xYyu0RrLDI The Halloween protonpack spirit may be a bit too small, but it makes dressing up for a costume much easier. I've made several changes and upgrades to the pack, including adding smoke to the N-filter. You'll need to cut off the existing filter, but I left some of it intact so I could glue the new one in place. I spent way too much time on this costume, but I want to share my experience with you so you don't have to make the same mistakes. Here are the changes I made: Wand hook: https://www.thingiverse.com/thing:2972587 LED holders for the wand: https://www.thingiverse.com/thing:2982288 Neopixel change to the bargraph: https://www.thingiverse.com/thing:2976341 Neopixel used for accelerator lights: https://www.thingiverse.com/thing:2976414 Accelerator hose change: https://www.thingiverse.com/thing:2976358 Box add-on for wand switches: https://www.thingiverse.com/thing:3190455 Spacers for the Alice pack frame: https://www.thingiverse.com/thing:3190427 Smoke for the pack - right here The smoke involves five components: * LEDs to light up the inside of the N-filter (8 neopixels) * A fan that blows out the smoke (90x30 mm, 5V, 0.2A) I used a 5V pump from eBay and an e-cigarette from Kangertech T2 for the most effective results. I also used a relay and a 3.7V 18650 Lithium polymer battery to power it. Two more Lithium polymer 18650s with a 5V regulator powered the rest of the pack. I had to use two Arduino nano processors to run the whole pack, as the Neopixel arrays are processor hogs. One processor handled the main LED arrays and the other handled "the rest." The two switches that turn on and off the pack were connected to both processors in parallel. I've attached the files for each processor with lots of comments explaining how and why things were done. Please let me know if you have any questions or need further clarification.