# nOOds LED CV Signal Visualizers ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/114/933/medium800thumb/components_pwmNoods.jpg?1663020313) In this project, you'll use the nOOds flexible LED filaments to make light-up visualizers to plug into your CV outputs. CV synths are like musical circuits: you can send waveforms with varying voltages around your setup to create desired bleeps and bloops. Sometimes making a patch can feel like plugging cables into a nebulous void though, especially if you inadvertently create cable spaghetti. As a result, it can be helpful to visualize the signals with LEDs. https://youtu.be/XsW8IBdaUnI The nOOds are soldered up to audio jacks on either end to create a "cable". However, It's important to note that the nOOds _ **do not carry CV signals** _, they're purely decorative. The nOOds' anode (positive) is connected to the audio jack's tip and the nOOds' cathode (negative) is connected to the other audio jack's ground. The positive end is plugged into a CV output and then ground can be grabbed from any open jack.  Info: ## Voltage Considerations This setup assumes for a 5V maximum output from your CV synth. If you know that the CV voltage you're using is higher or lower, you'll want to adjust the inline resistor to a different value for best performance. ## Prerequisite Guides [Adafruit nOOds Überguide](https://learn.adafruit.com/noods-uberguide/overview) ## Parts ### nOOds - Flexible LED Filament - 3V 300mm long - Blue [nOOds - Flexible LED Filament - 3V 300mm long - Blue](https://www.adafruit.com/product/5508) 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/5508) [Related Guides to the Product](https://learn.adafruit.com/products/5508/guides) ![Close-up video of a pair of white hands coiling and playing with a 300mm long blue LED filament.](https://cdn-shop.adafruit.com/product-videos/640x480/5508-04.jpg) ### 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) ### nOOds - Flexible LED Filament - 3V 300mm long - Lime Green [nOOds - Flexible LED Filament - 3V 300mm long - Lime Green](https://www.adafruit.com/product/5507) 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... In Stock [Buy Now](https://www.adafruit.com/product/5507) [Related Guides to the Product](https://learn.adafruit.com/products/5507/guides) ![Video of a pair of white hands coiling and playing with a 300mm long green LED filament.](https://cdn-shop.adafruit.com/product-videos/640x480/5507-04.jpg) ### 3.5mm (1/8") Stereo DIY Plug [3.5mm (1/8") Stereo DIY Plug](https://www.adafruit.com/product/1800) Repair or design your very own audio cables with these nice and durable phono-jack connectors. This is a great plug to make your own cable with. it's made out of durable metal with a flexible, sturdy spring for strain-relief. Just solder the connector to some wires and you have a DIY audio... In Stock [Buy Now](https://www.adafruit.com/product/1800) [Related Guides to the Product](https://learn.adafruit.com/products/1800/guides) ![3.5mm stereo plug.](https://cdn-shop.adafruit.com/640x480/1800-00.jpg) ### Through-Hole Resistors - 220 ohm 5% 1/4W - Pack of 25 [Through-Hole Resistors - 220 ohm 5% 1/4W - Pack of 25](https://www.adafruit.com/product/2780) ΩMG! You're not going to be able to resist these handy resistor packs! Well, axially, they do all of the resisting for you! This is a **25 Pack of 220Ω Resistors.** More specifically, they are **carbon film** , through-hole... In Stock [Buy Now](https://www.adafruit.com/product/2780) [Related Guides to the Product](https://learn.adafruit.com/products/2780/guides) ![Angled shot of 25 Through-Hole Resistors - 220 ohm 5% 1/4W.](https://cdn-shop.adafruit.com/640x480/2780-00.jpg) ### Multi-Colored Heat Shrink Pack - 3/32" + 1/8" + 3/16" Diameters [Multi-Colored Heat Shrink Pack - 3/32" + 1/8" + 3/16" Diameters](https://www.adafruit.com/product/1649) Heat shrink is the duct tape of electronics which I guess makes this heat shrink the colorful and exciting duct tape they sell at craft stores.  This heat shrink comes in six different colors - red, blue, green, yellow, white and the traditional black. Each pack contains ten... In Stock [Buy Now](https://www.adafruit.com/product/1649) [Related Guides to the Product](https://learn.adafruit.com/products/1649/guides) ![Array of many colorful heatshrink tubes.](https://cdn-shop.adafruit.com/640x480/1649-00.jpg) - [Next Page](https://learn.adafruit.com/noods-led-synth-cv-visualizers/circuit-diagram.md) ## Featured Products ### nOOds - Flexible LED Filament - 3V 300mm long - Blue [nOOds - Flexible LED Filament - 3V 300mm long - Blue](https://www.adafruit.com/product/5508) 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/5508) [Related Guides to the Product](https://learn.adafruit.com/products/5508/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) ### nOOds - Flexible LED Filament - 3V 300mm long - Lime Green [nOOds - Flexible LED Filament - 3V 300mm long - Lime Green](https://www.adafruit.com/product/5507) 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... In Stock [Buy Now](https://www.adafruit.com/product/5507) [Related Guides to the Product](https://learn.adafruit.com/products/5507/guides) ### 3.5mm (1/8") Stereo DIY Plug [3.5mm (1/8") Stereo DIY Plug](https://www.adafruit.com/product/1800) Repair or design your very own audio cables with these nice and durable phono-jack connectors. This is a great plug to make your own cable with. it's made out of durable metal with a flexible, sturdy spring for strain-relief. Just solder the connector to some wires and you have a DIY audio... In Stock [Buy Now](https://www.adafruit.com/product/1800) [Related Guides to the Product](https://learn.adafruit.com/products/1800/guides) ### Through-Hole Resistors - 220 ohm 5% 1/4W - Pack of 25 [Through-Hole Resistors - 220 ohm 5% 1/4W - Pack of 25](https://www.adafruit.com/product/2780) ΩMG! You're not going to be able to resist these handy resistor packs! Well, axially, they do all of the resisting for you! This is a **25 Pack of 220Ω Resistors.** More specifically, they are **carbon film** , through-hole... In Stock [Buy Now](https://www.adafruit.com/product/2780) [Related Guides to the Product](https://learn.adafruit.com/products/2780/guides) ### Multi-Colored Heat Shrink Pack - 3/32" + 1/8" + 3/16" Diameters [Multi-Colored Heat Shrink Pack - 3/32" + 1/8" + 3/16" Diameters](https://www.adafruit.com/product/1649) Heat shrink is the duct tape of electronics which I guess makes this heat shrink the colorful and exciting duct tape they sell at craft stores.  This heat shrink comes in six different colors - red, blue, green, yellow, white and the traditional black. Each pack contains ten... In Stock [Buy Now](https://www.adafruit.com/product/1649) [Related Guides to the Product](https://learn.adafruit.com/products/1649/guides) ## Related Guides - [Adafruit nOOds Überguide](https://learn.adafruit.com/noods-uberguide.md) - [LED Friendship Bracelet](https://learn.adafruit.com/nautical-led-bracelet.md) - [Coffee Rater](https://learn.adafruit.com/coffee-rater.md) - [FunHouse Motion Detecting Lights with LIFX Bulbs](https://learn.adafruit.com/funhouse-motion-detecting-lighting-for-lifx-bulbs.md) - [Circuit Playground Express TV Zapper](https://learn.adafruit.com/circuitpython-tv-zapper-with-circuit-playground-express.md) - [Cyber Cat MIDI Keyboard](https://learn.adafruit.com/midi-cyber-cat-keyboard.md) - [Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer](https://learn.adafruit.com/adafruit-pca9548-8-channel-stemma-qt-qwiic-i2c-multiplexer.md) - [NeoPixel LED Mickey Ears](https://learn.adafruit.com/neopixel-led-mickey-ears.md) - [NYE Circuit Playground Drop](https://learn.adafruit.com/nye-circuit-playground-drop.md) - [Infinity Mirror Valentine's Candy Box](https://learn.adafruit.com/infinity-mirror-candy-box.md) - [Adafruit CH334F Mini USB Hub Breakouts](https://learn.adafruit.com/adafruit-ch334f-mini-4-port-usb-hub-breakout.md) - [Make It Glow - Your First NeoPixel Project](https://learn.adafruit.com/make-it-glow-your-first-neopixel-project.md) - [Adafruit bq25185 USB / DC / Solar Lithium Ion/Polymer Charger](https://learn.adafruit.com/adafruit-bq25185-usb-dc-solar-lithium-ion-polymer-charger.md) - [DIY Rechargeable LED Makeup Compact](https://learn.adafruit.com/diy-rechargeable-led-makeup-compact.md) - [Vintage computer to HDMI with Feather DVI & CircuitPython](https://learn.adafruit.com/vintage-computer-to-dvi-with-feather-dvi-circuitpython.md) - [Arduino Lesson 5. The Serial Monitor](https://learn.adafruit.com/adafruit-arduino-lesson-5-the-serial-monitor.md)