# USB to UART AI ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** vasyl - **Created:** 6/15/2026 - **Last Updated:** 6/16/2026 - **Visibility:** Public ## Key Components ### D1 — [USBLC6-2SC6](https://www.flux.ai/lcsc/usblc6-2sc6~2e9x.md) - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - JLCPCB Part Class: Extended Part - LCSC Part Number: C2687116 - Peak Pulse Current: 5A - Operating Temperature: -55°C ~ 125°C (TJ) - Breakdown Voltage: 6V - Manufacturer Name: UMW(友台半导体) - Role Details: USB 2.0 D+/D− ESD protection near connector - Manufacturer Part Number: USBLC6-2SC6 - Power: 150W - Datasheet URL: https://www.lcsc.com/datasheet/C2687116.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdUVdURFlXXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Maximum Clamping Voltage: 17V - Role: Protection - Part Type: ESD Protection Devices - Symbol Style: parametric-v1 **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O1 [pin 6] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### J1 — [USB4105-GF-A](https://www.flux.ai/adrian95/usb4105-gf-a~im9.md) - Role Details: USB-C receptacle for upstream host connection; route VBUS, GND, D+/D−, and CC1/CC2 pull-downs - Part Type: USB C - Manufacturer Name: GCT - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://gct.co/files/specs/usb4105-spec.pdf - Manufacturer Part Number: USB4105-GF-A - Manufacturer Name: GCT - Role: USB Connector - LCSC Part Number: C3020560 - Symbol Style: parametric-v1 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin A1_B12] - GND__1 [pin B1_A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHELL_GND [pin SH1] - SHELL_GND__1 [pin SH2] - SHELL_GND__2 [pin SH3] - SHELL_GND__3 [pin SH4] - VBUS [pin A4_B9] - VBUS__1 [pin B4_A9] ### J2 — [640456-6](https://www.flux.ai/adrian95/640456-6~oy5.md) - Datasheet URL: https://www.mouser.com/datasheet/3/80/18/ENG_CD_640456_W3.pdf - Role Details: UART header: 3V3, GND, TXD, RXD, RTS, CTS - Manufacturer Name: TE Connectivity AMP Connectors - License: https://creativecommons.org/licenses/by/4.0/ - Role: Logic-level Shifting - Manufacturer Part Number: 640456-6 - Part Type: Connector - Package or Case Code: SHDR6W66P0X254_1X6_1524X572X1003P **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### LED1 — [BZ-C0603-G3-F1](https://www.flux.ai/lcsc/bz-c0603-g3-f1~v6dg.md) - Part Type: Light Emitting Diodes (LED) - Manufacturer Name: baizou(百洲) - JLCPCB Part Class: Extended Part - Package or Case Code: LED0603-R-RD_GREEN - Datasheet URL: https://www.lcsc.com/datasheet/C2833058.pdf - Manufacturer Part Number: BZ-C0603-G3-F1 - LCSC Part Number: C2833058 - Role Details: Power indicator LED on 3V3 rail - License: https://creativecommons.org/licenses/by/4.0/ - Role: Current Limiting **Pins:** - A [pin 1] - K [pin 2] ### LED2 — [BZ-C0603-G3-F1](https://www.flux.ai/lcsc/bz-c0603-g3-f1~v6dg.md) - Role: Current Limiting - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BZ-C0603-G3-F1 - Datasheet URL: https://www.lcsc.com/datasheet/C2833058.pdf - LCSC Part Number: C2833058 - Package or Case Code: LED0603-R-RD_GREEN - Part Type: Light Emitting Diodes (LED) - Manufacturer Name: baizou(百洲) - JLCPCB Part Class: Extended Part - Role Details: UART TX activity indicator LED **Pins:** - A [pin 1] - K [pin 2] ### LED3 — [BZ-C0603-G3-F1](https://www.flux.ai/lcsc/bz-c0603-g3-f1~v6dg.md) - Datasheet URL: https://www.lcsc.com/datasheet/C2833058.pdf - Manufacturer Part Number: BZ-C0603-G3-F1 - Role: Current Limiting - LCSC Part Number: C2833058 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: baizou(百洲) - Part Type: Light Emitting Diodes (LED) - JLCPCB Part Class: Extended Part - Package or Case Code: LED0603-R-RD_GREEN - Role Details: UART RX activity indicator LED **Pins:** - A [pin 1] - K [pin 2] ### U1 — [CP2102N-A02-GQFN28R](https://www.flux.ai/lcsc/cp2102n-a02-gqfn28r~sj5u.md) - Symbol Style: parametric-v1 - Operating Temperature: -40℃~+85℃@(Ta) - Part Type: USB ICs - Datasheet URL: https://www.lcsc.com/datasheet/C964632.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VeU1dTRVhaUTsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Manufacturer Name: SKYWORKS/SILICON LABS(芯科) - LCSC Part Number: C964632 - Supply Voltage: 3~3.6V - License: https://creativecommons.org/licenses/by/4.0/ - JLCPCB Part Class: Extended Part - Package or Case Code: QFN-28_L5.0-W5.0-P0.50-TL-EP3.3 - Logic Function: USB to UART - Manufacturer Part Number: CP2102N-A02-GQFN28R - Role Details: USB-to-UART bridge; ~9.5 mA typical load from USB VBUS-derived 3.3 V rail - Role: Logic-level Shifting **Pins:** - CHR0 [pin 15] - CHR1 [pin 14] - CHREN [pin 13] - CTS [pin 23] - D- [pin 5] - D+ [pin 4] - DCD [pin 1] - DSR [pin 27] - DTR [pin 28] - EP [pin 29] - GND [pin 3] - GPIO.0/TXT [pin 19] - GPIO.1/RXT [pin 18] - GPIO.2/RS485 [pin 17] - GPIO.3/WAKEUP [pin 16] - GPIO.4 [pin 22] - GPIO.5 [pin 21] - GPIO.6 [pin 20] - NC [pin 10] - RI/CLK [pin 2] - RSTb [pin 9] - RTS [pin 24] - RXD [pin 25] - SUSPEND [pin 12] - SUSPENDb [pin 11] - TXD [pin 26] - VBUS [pin 8] - VDD [pin 6] - VREGIN [pin 7] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasyl/usb-to-uart-ai~vx7](https://www.flux.ai/vasyl/usb-to-uart-ai~vx7).* --- *Generated from [https://www.flux.ai/vasyl/usb-to-uart-ai~vx7](https://www.flux.ai/vasyl/usb-to-uart-ai~vx7)*