2 layers
GCAN gauge
willemcvu/gCAN-gauge
An open-source ESP32-based programmable digital gauge targeted at EV conversions
49 parts4MIT
2 layers37.9 × 15.2 mm
Usb cp2102
tientieutu/USB-for-ESP32- Size
- 37.9 × 15.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 38
- Pads
- 116
- Tracks, vias
- 194, 28
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Aug 2026
- Updated
- 16 Aug 2026
Overview
Usb cp2102 is an open-source printed circuit board by tientieutu, from the tientieutu/USB-for-ESP32 repository on GitHub. It is a 2-layer board of 37.9 × 15.2 mm with 28 parts on 38 nets, routed with 194 tracks and 28 vias.
It is built around the AMS1117-3.3, CM1293A-04SO and SS8050, with the SS34 among its other parts. Its parts include 10 resistors, 6 capacitors, 4 diodes, 3 ICs and 3 connectors.
Main components
4
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CM1293A-04SO
SC-74-40℃~+85℃ 1A@8/20us 1uA 2pF 3.3V 9.9V ESD Four channels IEC 61000-4-2 SC-74 ESD and Surge Protection (TVS/ESD) ROHSonsemiESD And Surge Protection (TVS/ESD)
SS8050
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdUSB-for-ESP32
ESP32 programmer with an optional auto-programming feature. It utilizes the CP2102 chip and was designed using KiCad.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R7, R8, R9, R10 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D4 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C4 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | SS8050 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 10uF | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I | C5 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 22uF | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_HandSolder | C6 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U2 |
| 1 | CM1293A-04SO | tien:SOT95P285X140-6N | IC1 |
| 1 | CP2102C-Axx-xQFN24 | Package_DFN_QFN:WQFN-24-1EP_4x4mm_P0.5mm_EP2.45x2.45mm | U1 |
| 1 | Conn_02x02_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J3 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_IDC:IDC-Header_2x03_P2.54mm_Horizontal | J1 |
| 1 | SS34 | Diode_SMD:D_SMA | D3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J2 |
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Questions
How big is the Usb cp2102 PCB?
It measures 37.9 × 15.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb cp2102 use?
28 parts, built around the AMS1117-3.3, CM1293A-04SO, SS8050 and SS34. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usb cp2102 KiCad files?
From the tientieutu/USB-for-ESP32 repository on GitHub, at the commit this page was made from: the board is usb_cp2102.kicad_pcb and its schematic usb_cp2102.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb cp2102 design in my own project?
Its repository states no licence, so its author keeps all rights: ask tientieutu before reusing the design.