# Guilty Maroon P.K.E. Meter ## Description 30-LED WS2812B Addressable LED Ring with Enhanced Power Stability (5V) ## Project Details - **Owner:** natarius - **Created:** 11/20/2025 - **Last Updated:** 11/20/2025 - **Visibility:** Public - **Role:** System Architecture Diagram - **Role Details:** System-level ring topology for 30 WS2812B LEDs: Power input (+5V, GND), Data In and Data Out connectors, ring LED chain with bulk cap and decoupling caps, data line resistor. Data runs serially through each LED, with DOUT of the last LED connected to DIN of the first (closed ring). - **Part Type:** Integrated Circuit ## Key Components ### Cbulk — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Capacitance: 470µF - Package: CAP-TH - Part Type: Non-Polarized Capacitor - Role Details: Bulk capacitor on +5V net - Role: Bulk **Pins:** - P1 [pin 1] - P2 [pin 2] ### D1 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role Details: Addressable RGB LED for ring - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D10 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Manufacturer Part Number: WS2812B - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D11 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D12 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Part Type: LED SMD - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B - Role: Signal Generation **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D13 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Part Type: LED SMD - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D14 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Part Type: LED SMD - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D15 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role Details: Addressable RGB LED for ring - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D16 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B - Role: Signal Generation - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Part Type: LED SMD **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D17 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D18 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D19 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role: Signal Generation - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Part Type: LED SMD - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D2 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D20 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D21 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Part Type: LED SMD - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D22 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D23 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D24 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role Details: Addressable RGB LED for ring - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Part Type: LED SMD - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D25 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role Details: Addressable RGB LED for ring - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D26 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Part Type: LED SMD - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D27 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Manufacturer Part Number: WS2812B - Role Details: Addressable RGB LED for ring - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D28 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Role Details: Addressable RGB LED for ring **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D29 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role: Signal Generation **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D3 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D30 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Role Details: Addressable RGB LED for ring - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Part Type: LED SMD **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D4 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Role: Signal Generation - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role Details: Addressable RGB LED for ring - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D5 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Role Details: Addressable RGB LED for ring - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Role: Signal Generation **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D6 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD - Manufacturer Part Number: WS2812B - Role Details: Addressable RGB LED for ring - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D7 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Manufacturer Part Number: WS2812B - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Part Type: LED SMD **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D8 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Role: Signal Generation - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm - Role Details: Addressable RGB LED for ring - Manufacturer Part Number: WS2812B **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### D9 — [WS2812B](https://www.flux.ai/kicad-part-library/ws2812b~l5u.md) - Part Type: LED SMD - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/WS2812B.pdf - Manufacturer Part Number: WS2812B - Role: Signal Generation - Role Details: Addressable RGB LED for ring - Package or Case Code: LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm **Pins:** - DIN [pin 4] - DOUT [pin 2] - VDD [pin 1] - VSS [pin 3] ### JIN — [TSW-103-07-G-S](https://www.flux.ai/adrian95/tsw-103-07-g-s~876.md) - Role: Connector - Datasheet URL: https://suddendocs.samtec.com/prints/tsw-xxx-xx-x-x-xx-xxx-footprint.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Power and Data Input: 5V, GND, DIN - Part Type: Connector - Manufacturer Name: Samtec Inc. - Manufacturer Part Number: TSW-103-07-G-S **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### JOUT — [TSW-103-07-G-S](https://www.flux.ai/adrian95/tsw-103-07-g-s~876.md) - Datasheet URL: https://suddendocs.samtec.com/prints/tsw-xxx-xx-x-x-xx-xxx-footprint.pdf - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TSW-103-07-G-S - Manufacturer Name: Samtec Inc. - Part Type: Connector - Role Details: Power and Data Output: 5V, GND, DOUT **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### Rseries — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role: Current Limiting - Package: SMD_0603_1608Metric - Part Type: Resistor - Role Details: Series resistor on DATA_IN line - Resistance: 330Ω **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/natarius/guilty-maroon-ppkpep-meter~rv](https://www.flux.ai/natarius/guilty-maroon-ppkpep-meter~rv).* --- *Generated from [https://www.flux.ai/natarius/guilty-maroon-ppkpep-meter~rv](https://www.flux.ai/natarius/guilty-maroon-ppkpep-meter~rv)*