# PianoLED C3 Carrier ## Description Production-oriented carrier PCB for a pluggable ESP32-C3 SuperMini PianoLED controller, with 5 V / 8 A LED power input, safe USB/external-power behavior, 5 V WS2812 data shifting, and keyed LED output. ## Project Details - **Owner:** deymos42 - **Created:** 7/21/2026 - **Last Updated:** 7/21/2026 - **Visibility:** Public ## Key Components ### D1 — [USBLC6-2SC6](https://www.flux.ai/lcsc/usblc6-2sc6~2e9x.md) - Part Type: ESD Protection Devices - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Manufacturer Name: UMW(友台半导体) - Peak Pulse Current: 5A - Maximum Clamping Voltage: 17V - Symbol Style: parametric-v1 - LCSC Part Number: C2687116 - Role Details: 2-channel low-capacitance USB data-line ESD array for USB_D_N and USB_D_P. - Power: 150W - Operating Temperature: -55°C ~ 125°C (TJ) - Breakdown Voltage: 6V - JLCPCB Part Class: Extended Part - Datasheet URL: https://www.lcsc.com/datasheet/C2687116.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdUVdURFlXXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Manufacturer Part Number: USBLC6-2SC6 - Role: ESD Protection **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O1 [pin 6] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### J1 — JACK-L-PC-10A-RA(R) - Mount: PCB - Datasheet URL: https://datasheet.lcsc.com/datasheet/pdf/957d03299073b11f8af6f6260bd5c606.pdf?productCode=C3095430 - Manufacturer Name: GlobTek, Inc. - Role Details: GlobTek 10 A 5.5x2.5 mm center-positive barrel jack; exact footprint to verify before PCB layout - Manufacturer Part Number: JACK-L-PC-10A-RA(R) - Role: Power Input Connector **Pins:** - CENTER_PIN [pin 1] - SHIELD [pin SH1] - SLEEVE [pin 2] ### J2 — [B3P-VH(LF)(SN)](https://www.flux.ai/lcsc/b3p-vhlfsn~obp9.md) - Connector Gender: Male - Role: LED Output Connector - Connector Positions: 3 - Role Details: Pin 1 +5V, pin 2 DATA, pin 3 GND per simplified Rev C brief - LCSC Part Number: C160316 - Connector Pitch: 3.96mm - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811151527_JST-B3P-VH-LF-SN_C160316.pdf - Product Info Url: https://lcsc.com/product-detail/_JST_B3P-VH-LF-SN_B3P-VH-LF-SN_C160316.html - Connector Rows: 1 - Part Type: Wire To Board / Wire To Wire Connector - JLCPCB Part Class: Extended Part - Manufacturer Part Number: B3P-VH(LF)(SN) - Package or Case Code: CONN-TH_B3P-VH-LF-SN - Manufacturer Name: JST - Connector Type: Wire To Board Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J3 — [TYPE-C-2.0-16PIN-SMT-3-OR](https://www.flux.ai/lcsc/type-c-2p0-16pin-smt-3-or~957d.md) - Manufacturer Part Number: TYPE-C-2.0-16PIN-SMT-3-OR - Package or Case Code: USB-SMD_TYPE-C16PIN-1 - Role: USB-C Device Connector - Manufacturer Name: CIKI(皓富) - JLCPCB Part Class: Extended Part - Role Details: USB-C 2.0 receptacle for data/programming only; CC1/CC2 Rd present; VBUS kept on isolated USB_VBUS net and not connected to 5V_IN or 3V3. - LCSC Part Number: C2987387 - Part Type: USB Connectors **Pins:** - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 20 [pin 20] - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - VBUS [pin A4B9] - VBUS [pin B4A9] ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Part Type: Tactile Switches - Role: Reset Button - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - LCSC Part Number: C720477 - Role Details: Momentary normally-open reset switch from EN to GND. - Manufacturer Part Number: TS-1088-AR02016 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - JLCPCB Part Class: Extended Part - Manufacturer Name: XUNPU(讯普) **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - LCSC Part Number: C720477 - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - Manufacturer Part Number: TS-1088-AR02016 - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Part Type: Tactile Switches - Role: Boot Button - JLCPCB Part Class: Extended Part - Manufacturer Name: XUNPU(讯普) - Role Details: Momentary normally-open BOOT switch from GPIO9 to GND for ESP32-C3 download/recovery mode. - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [AP63203WU-7](https://www.flux.ai/adrian95/ap63203wu-7~o8a.md) - Role Details: Fixed 3.3 V AP63203, datasheet Table 2 support network - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Datasheet URL: https://www.diodes.com/assets/Datasheets/AP63200-AP63201-AP63203-AP63205.pdf - Role: Power Conversion - Manufacturer Part Number: AP63203WU-7 - Symbol Style: parametric-v1 - Part Type: Integrated Circuit **Pins:** - BST [pin 6] - EN [pin 2] - FB [pin 1] - GND [pin 4] - SW [pin 5] - VIN [pin 3] ### U2 — SN74AHCT1G125DBVR - Role Details: AHCT single buffer powered at 5 V; /OE tied low; output to LED through 330 ohm resistor - Package or Case Code: SOT-23-5 - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuits - Manufacturer Part Number: SN74AHCT1G125DBVR - Role: Logic-level Shifting - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ahct1g125.pdf **Pins:** - ~OE [pin 1] - A [pin 2] - GND [pin 3] - VCC [pin 5] - Y [pin 4] ### U3 — [ESP32-C3-MINI-1-N4(4MB)](https://www.flux.ai/lcsc/esp32-c3-mini-1-n44mb~ws8.md) - LCSC Part Number: C2934561 - Role: Wireless MCU Module - JLCPCB Part Class: Extended Part - Manufacturer Name: ESPRESSIF(乐鑫) - Role Details: Official Espressif ESP32-C3-MINI-1-N4 module, powered only from external 5V -> AP63203 3V3 rail; native USB on GPIO18/GPIO19; WS2812 data on GPIO10. - Part Type: WIFI Modules - Manufacturer Part Number: ESP32-C3-MINI-1-N4(4MB) - Package or Case Code: WIFIM-SMD_ESP32-C3-MINI-1 **Pins:** - 3V3 [pin 3] - EN [pin 8] - GND [pin 43] - GND [pin 52] - GND [pin 44] - GND [pin 39] - GND [pin 41] - GND [pin 49] - GND [pin 14] - GND [pin 48] - GND [pin 40] - GND [pin 51] - GND [pin 1] - GND [pin 36] - GND [pin 50] - GND [pin 53] - GND [pin 45] - GND [pin 37] - GND [pin 38] - GND [pin 47] - GND [pin 2] - GND [pin 42] - GND [pin 46] - GND [pin 11] - IO1 [pin 13] - IO10 [pin 16] - IO18 [pin 26] - IO19 [pin 27] - IO2 [pin 5] - IO3 [pin 6] - IO4 [pin 18] - IO5 [pin 19] - IO6 [pin 20] - IO7 [pin 21] - IO8 [pin 22] - IO9 [pin 23] - NC [pin 28] - NC [pin 32] - NC [pin 9] - NC [pin 17] - NC [pin 4] - NC [pin 7] - NC [pin 35] - NC [pin 25] - NC [pin 24] - NC [pin 15] - NC [pin 33] - NC [pin 10] - NC [pin 29] - NC [pin 34] - O0 [pin 12] - RXD0 [pin 30] - TXD0 [pin 31] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/deymos42/pianoled-c3-carrier~z5](https://www.flux.ai/deymos42/pianoled-c3-carrier~z5).* --- *Generated from [https://www.flux.ai/deymos42/pianoled-c3-carrier~z5](https://www.flux.ai/deymos42/pianoled-c3-carrier~z5)*