# Rumi Sword - KPop Demon Hunters ## Overview Seal the Honmoon with Rumi's sword from KPop Demon Hunters! Powered by the Adafruit TPS61169 Constant Current Boost Converter for LEDs! Two Pink LED nOOds illuminate the blade and handle to create a bright cosplay prop! We designed the sword with steel machine screws to reinforce the 3D printed parts so it's strong and durable, just like the demon hunters. ![](https://cdn-learn.adafruit.com/assets/assets/000/139/565/medium640/led_strips_hero-eyes.jpg?1757425604) Noods LEDs are often seen in 'Edison-like' LED bulbs, shaped into hearts or stars or just wound around to create a fun or warm lighting effect. They're made of dozens of LED diodes that are bonded together on an ultra flexible metal backing, then coated in colorful silicone for protection. The printed sword houses the TPS LED Booster board with a slide switch to power on. ![](https://cdn-learn.adafruit.com/assets/assets/000/139/566/medium640/led_strips_hero-board-2.jpg?1757425765) ![](https://cdn-learn.adafruit.com/assets/assets/000/139/575/medium800thumb/led_strips_hero-loops.jpg?1757429232 ) ## Parts Featured ### Adafruit TPS61169 Constant Current Boost Converter for LEDs [Adafruit TPS61169 Constant Current Boost Converter for LEDs](https://www.adafruit.com/product/6354) The  **Adafruit Constant Current Boost Converter for LEDs** makes driving LEDs easy, whether they're in series or parallel - with a chip that can generate up to 40V and 400mA from 3~5V input. Unlike most of our booster chips that generate a fixed voltage (like 5V, or 12V)... In Stock [Buy Now](https://www.adafruit.com/product/6354) [Related Guides to the Product](https://learn.adafruit.com/products/6354/guides) ![Demo Shot of the Constant Current Boost Converter powering LED Letter Filaments that spell out "Adafruit".](https://cdn-shop.adafruit.com/640x480/6354-06.jpg) ## 2x of Noods Featured ### nOOds - Flexible LED Filament - 3V 300mm long - Pink [nOOds - Flexible LED Filament - 3V 300mm long - Pink](https://www.adafruit.com/product/5510) Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC these are often called 'noods'! What we've got here are flexible LED noodles, in different lengths and colors. All are not good for eatin' but they are good for cool lighting... In Stock [Buy Now](https://www.adafruit.com/product/5510) [Related Guides to the Product](https://learn.adafruit.com/products/5510/guides) ![Video of a pair of white hands coiling and playing with a 300mm long green pink filament.](https://cdn-shop.adafruit.com/product-videos/640x480/5510-04.jpg) Featured ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... In Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ![Small, black, SPDT slide switch.](https://cdn-shop.adafruit.com/640x480/805-03.jpg) Featured ### Lithium Ion Cylindrical Battery - 3.7v 2200mAh [Lithium Ion Cylindrical Battery - 3.7v 2200mAh](https://www.adafruit.com/product/1781) Need a big battery for your project? This lithium-ion battery contains a 2200mAh and a protection circuit that provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases. This cell can provide 2 **C** of... In Stock [Buy Now](https://www.adafruit.com/product/1781) [Related Guides to the Product](https://learn.adafruit.com/products/1781/guides) ![Lithium Ion Cylindrical Battery - 3.7v 2200mAh with JST PH connector](https://cdn-shop.adafruit.com/640x480/1781-04.jpg) Featured ### Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack [Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack](https://www.adafruit.com/product/4410) Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any USB C cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There... In Stock [Buy Now](https://www.adafruit.com/product/4410) [Related Guides to the Product](https://learn.adafruit.com/products/4410/guides) ![Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack connected to Lipoly battery and USB cable. ](https://cdn-shop.adafruit.com/640x480/4410-05.jpg) Featured ### JST PH 2-Pin Cable – Male Header 200mm [JST PH 2-Pin Cable – Male Header 200mm](https://www.adafruit.com/product/3814) For a really long time we assumed that the JST PH didn't have a free-hanging male header version. But then we found this **JST-PH 2-pin Male Cable,** and we were like, _this is perfect!_ It's not a genuine JST connector, but it's 100%... In Stock [Buy Now](https://www.adafruit.com/product/3814) [Related Guides to the Product](https://learn.adafruit.com/products/3814/guides) ![Top view shot of JST PH 2-Pin Cable - Male Header - 200mm.](https://cdn-shop.adafruit.com/640x480/3814-02.jpg) Featured ### Silicone Cover Stranded-Core Wire - 50ft 30AWG White [Silicone Cover Stranded-Core Wire - 50ft 30AWG White](https://www.adafruit.com/product/3169) //www.youtube.com/embed/W85OajXuDRA ?start=10 Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps... In Stock [Buy Now](https://www.adafruit.com/product/3169) [Related Guides to the Product](https://learn.adafruit.com/products/3169/guides) ![A spool of white AWG wire.](https://cdn-shop.adafruit.com/640x480/3169-01.jpg) ### Part: Gold Polymaker PLA PRO quantity: 1 Gold Polymaker PLA PRO [Gold Polymaker PLA PRO](https://www.amazon.com/dp/B0B8HY63WY) ### Part: AMOLEN Blue Glow PLA quantity: 1 AMOLEN Blue Glow PLA [AMOLEN Blue Glow PLA](https://www.amazon.com/dp/B0D879NZ93) ### Part: M2x12mm screws quantity: 14 M2x12mm screws for the handle - 6 for the blade base [M2x12mm screws ](https://www.amazon.com/uxcell-M2x12mm-Phillips-Countersunk-Machine/dp/B01DJVDRGU) ### Part: M2x8mm Screws quantity: 3 M2x8mm Screws for the pommel [M2x8mm Screws](https://www.amazon.com/Uxcell-a15123100ux0457-Phillips-Countersunk-Machine/dp/B01CE9FGFS) ### Part: M2x5mm Screws quantity: 14 M2x5mm Screws for the Blade [M2x5mm Screws](https://www.amazon.com/Uxcell-a15123100ux0455-Stainless-Phillips-Countersunk/dp/B01DKI6VD8) - [Next Page](https://learn.adafruit.com/rumi-sword/circuit-diagram.md) ## Guide Products ### Adafruit TPS61169 Constant Current Boost Converter for LEDs [Adafruit TPS61169 Constant Current Boost Converter for LEDs](https://www.adafruit.com/product/6354) The  **Adafruit Constant Current Boost Converter for LEDs** makes driving LEDs easy, whether they're in series or parallel - with a chip that can generate up to 40V and 400mA from 3~5V input. Unlike most of our booster chips that generate a fixed voltage (like 5V, or 12V)... In Stock [Buy Now](https://www.adafruit.com/product/6354) [Related Guides to the Product](https://learn.adafruit.com/products/6354/guides) ### nOOds - Flexible LED Filament - 3V 300mm long - Pink [nOOds - Flexible LED Filament - 3V 300mm long - Pink](https://www.adafruit.com/product/5510) Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC these are often called 'noods'! What we've got here are flexible LED noodles, in different lengths and colors. All are not good for eatin' but they are good for cool lighting... In Stock [Buy Now](https://www.adafruit.com/product/5510) [Related Guides to the Product](https://learn.adafruit.com/products/5510/guides) ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... In Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ### Lithium Ion Cylindrical Battery - 3.7v 2200mAh [Lithium Ion Cylindrical Battery - 3.7v 2200mAh](https://www.adafruit.com/product/1781) Need a big battery for your project? This lithium-ion battery contains a 2200mAh and a protection circuit that provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases. This cell can provide 2 **C** of... In Stock [Buy Now](https://www.adafruit.com/product/1781) [Related Guides to the Product](https://learn.adafruit.com/products/1781/guides) ### Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack [Adafruit Micro-Lipo Charger for LiPoly Batt with USB Type C Jack](https://www.adafruit.com/product/4410) Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any USB C cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end. There... In Stock [Buy Now](https://www.adafruit.com/product/4410) [Related Guides to the Product](https://learn.adafruit.com/products/4410/guides) ### JST PH 2-Pin Cable – Male Header 200mm [JST PH 2-Pin Cable – Male Header 200mm](https://www.adafruit.com/product/3814) For a really long time we assumed that the JST PH didn't have a free-hanging male header version. But then we found this **JST-PH 2-pin Male Cable,** and we were like, _this is perfect!_ It's not a genuine JST connector, but it's 100%... In Stock [Buy Now](https://www.adafruit.com/product/3814) [Related Guides to the Product](https://learn.adafruit.com/products/3814/guides) ### Silicone Cover Stranded-Core Wire - 50ft 30AWG White [Silicone Cover Stranded-Core Wire - 50ft 30AWG White](https://www.adafruit.com/product/3169) //www.youtube.com/embed/W85OajXuDRA ?start=10 Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps... In Stock [Buy Now](https://www.adafruit.com/product/3169) [Related Guides to the Product](https://learn.adafruit.com/products/3169/guides) ## Related Guides - [Adafruit nOOds Überguide](https://learn.adafruit.com/noods-uberguide.md) - [Adafruit TPS61169 Constant Current Boost Converter for LEDs](https://learn.adafruit.com/adafruit-tps61169-constant-current-boost-converter-for-leds.md) - [Wire Spool Carousel](https://learn.adafruit.com/wire-spool-carousel.md) - [CLUE case](https://learn.adafruit.com/clue-case.md) - [Rezz-Inspired NeoPixel Glasses](https://learn.adafruit.com/rezz-inspired-neopixel-glasses.md) - [Wireless NeoPixel Controller](https://learn.adafruit.com/neotrellis-neopixel-controller.md) - [TRON DISC](https://learn.adafruit.com/trondisc.md) - [CNC Rotary Macropad](https://learn.adafruit.com/cnc-rotary-macropad.md) - [DIY Robotic Sky Tracking Astrophotography Mount with CircuitPython](https://learn.adafruit.com/diy-robotic-sky-tracking-astrophotography-mount.md) - [Mini Raspberry Pi Handheld Notebook](https://learn.adafruit.com/mini-raspberry-pi-handheld-notebook-palmtop.md) - [Ahsoka Lightsaber Prop-Maker RP2040 retrofit](https://learn.adafruit.com/lightsaber-retrofit.md) - [Motorized Marble Machine](https://learn.adafruit.com/marble-run.md) - [Planetary Gear Dreidels](https://learn.adafruit.com/planetary-gear-dreidels.md) - [Light-Up Costumes in Harsh Environments](https://learn.adafruit.com/light-up-costumes-in-harsh-environments.md) - [Pyloton: CircuitPython Cycling Computer](https://learn.adafruit.com/pyloton.md) - [Portable 5in Monitor with HDMI](https://learn.adafruit.com/portable-5in-monitor-with-hdmi.md) - [LED Reactive Light-Up Hockey Puck in MakeCode](https://learn.adafruit.com/led-hockey-puck.md)