# National Rose TV Glasses ## Description Ultra-Minimal 8-Channel 3.3V Sensor Interface Board Using Seeed XIAO SAMD21 & LMC6484IMX-TI on Compact 80×25mm PCB ## Project Details - **Owner:** jordanstepney - **Created:** 10/17/2025 - **Last Updated:** 10/19/2025 - **Visibility:** Public - **Stackup:** Standard 2 Layer - **Via Drill:** 0.2mm - **Layer 2:** GND - **System Architecture:** graph LR U1["U1: LMC6484IMX-TI"] U2["U2: Seeed XIAO SAMD21"] 3v3["3v3"] GND["GND"] U1 --> 3v3 U1 --> GND U2 --> 3v3 U2 --> GND - **Trace Width:** 0.25mm - **Clearance:** 0.2mm - **Via Diameter:** 0.45mm - **Stackup:** Standard 2 Layer - **Copies:** 3 ## Key Components ### — Seeed Xiao SAMD21 - Datasheet URL: https://www.farnell.com/datasheets/3698325.pdf - Manufacturer Part Number: 102010328 - Part Type: Microcontroller - Manufacturer Name: Seeed Studios **Pins:** - 3V3 - GND - PA02_A0_D0 - PA10_A2_D2 [pin D2] - PA11_A3_D3 [pin A3] - PA4_A1_D1 - PA5_A9_D9_MISO - PA6_A10_D10_MOSI - PA7_A8_D8_SCK [pin D8] - PA8_A4_D4_SDA [pin D4] - PA9_A5_D5_SCL - PB08_A6_D6_TX [pin D6] - PB09_A7_D7_RX - VCC [pin VCC] ### RB1 — [742C163103JP](https://www.flux.ai/lcsc/742c163103jp~9wa5.md) - Resistance: 10kΩ - LCSC Part Number: C2654035 - Manufacturer Part Number: 742C163103JP - Role Details: Sensor input resistor network - Part Type: Resistors - Manufacturer Name: CTS(西迪斯) - JLCPCB Part Class: Extended Part - Package or Case Code: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL - Role: Resistors **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### RB1 — [742C163103JP](https://www.flux.ai/lcsc/742c163103jp~9wa5.md) - LCSC Part Number: C2654035 - Resistance: 1kΩ - Manufacturer Part Number: 742C163103JP - Manufacturer Name: CTS(西迪斯) - Part Type: Resistors - Package or Case Code: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL - JLCPCB Part Class: Extended Part - Footprint: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### RB2 — [742C163103JP](https://www.flux.ai/lcsc/742c163103jp~9wa5.md) - Role Details: Sensor input resistor network - Resistance: 10kΩ - LCSC Part Number: C2654035 - Role: Resistors - JLCPCB Part Class: Extended Part - Package or Case Code: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL - Part Type: Resistors - Manufacturer Name: CTS(西迪斯) - Manufacturer Part Number: 742C163103JP **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### RB2 — [742C163103JP](https://www.flux.ai/lcsc/742c163103jp~9wa5.md) - LCSC Part Number: C2654035 - Resistance: 10mΩ - JLCPCB Part Class: Extended Part - Package or Case Code: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL - Manufacturer Name: CTS(西迪斯) - Part Type: Resistors - Footprint: RES-ARRAY-SMD_0603-16P-L6.4-W1.6-TL - Manufacturer Part Number: 742C163103JP **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### TP1 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Package or Case Code: CONN-TH_6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Manufacturer Part Number: 6037 - Footprint: CONN-TH_6037 - LCSC Part Number: C238145 - Manufacturer Name: Keystone **Pins:** - 1 [pin 1] ### TP2 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Footprint: CONN-TH_6037 - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Manufacturer Name: Keystone - LCSC Part Number: C238145 **Pins:** - 1 [pin 1] ### TP3 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - LCSC Part Number: C238145 - Manufacturer Name: Keystone - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Manufacturer Part Number: 6037 - Footprint: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Package or Case Code: CONN-TH_6037 - JLCPCB Part Class: Extended Part - Part Type: Test Points/Test Rings **Pins:** - 1 [pin 1] ### TP4 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Manufacturer Name: Keystone - Footprint: CONN-TH_6037 - LCSC Part Number: C238145 - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html **Pins:** - 1 [pin 1] ### TP5 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Role: Test Points - Manufacturer Name: Keystone - LCSC Part Number: C238145 - Role Details: Breakout for ADC and test nets - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] ### TP6 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Part Type: Test Points/Test Rings - Role Details: Breakout for ADC and test nets - JLCPCB Part Class: Extended Part - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Role: Test Points - Manufacturer Name: Keystone - LCSC Part Number: C238145 **Pins:** - 1 [pin 1] ### TP7 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Manufacturer Name: Keystone - LCSC Part Number: C238145 - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Role Details: Breakout for ADC and test nets - Role: Test Points **Pins:** - 1 [pin 1] ### TP8 — [6037](https://www.flux.ai/lcsc/6037~m0a7.md) - Package or Case Code: CONN-TH_6037 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_6037_Keystone-6037_C238145.html - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Manufacturer Name: Keystone - LCSC Part Number: C238145 - Role Details: Breakout for ADC and test nets - Role: Test Points - Manufacturer Part Number: 6037 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-6037_C238145.pdf **Pins:** - 1 [pin 1] ### U1 — [LMC6484IMX-TI](https://www.flux.ai/jecstronic/lmc6484imx-ti~ve.md) - Manufacturer Name: Texas Instruments - Part Type: Operational Amplifier (OP-AMP) - Role: Operational Amplifier (OP-AMP) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LMC6484IMX-TI - Datasheet URL: https://rocelec.widen.net/view/pdf/lds0edkprf/lmc6484.pdf?t.download=true&u=5oefqw **Pins:** - -IN1 [pin 2] - -IN2 [pin 6] - -IN3 [pin 9] - -IN4 [pin 13] - +IN1 [pin 3] - +IN2 [pin 5] - +IN3 [pin 10] - +IN4 [pin 12] - OUTPUT1 [pin 1] - OUTPUT2 [pin 7] - OUTPUT3 [pin 8] - OUTPUT4 [pin 14] - V- [pin 11] - V+ [pin 4] ### U1 — [LMC6484IMX-TI](https://www.flux.ai/jecstronic/lmc6484imx-ti~ve.md) - Datasheet URL: https://rocelec.widen.net/view/pdf/lds0edkprf/lmc6484.pdf?t.download=true&u=5oefqw - Footprint: SOIC-14_3.9x8.7mm_P1.27mm - Manufacturer Part Number: LMC6484IMX-TI - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: Texas Instruments **Pins:** - -IN1 [pin 2] - -IN2 [pin 6] - -IN3 [pin 9] - -IN4 [pin 13] - +IN1 [pin 3] - +IN2 [pin 5] - +IN3 [pin 10] - +IN4 [pin 12] - OUTPUT1 [pin 1] - OUTPUT2 [pin 7] - OUTPUT3 [pin 8] - OUTPUT4 [pin 14] - V- [pin 11] - V+ [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jordanstepney/national-rose-tv-glasses~yv](https://www.flux.ai/jordanstepney/national-rose-tv-glasses~yv).* --- *Generated from [https://www.flux.ai/jordanstepney/national-rose-tv-glasses~yv](https://www.flux.ai/jordanstepney/national-rose-tv-glasses~yv)*