2 layers69 × 58 mm
4 layers85.6 × 54 mm
USB C DB
Rr42/USB-C-DB1Demo board for testing and evaluating the USB-C interface for Micro-controllers with onboard battery charging.
- Size
- 85.6 × 54 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 202
- Nets
- 135
- Pads
- 697
- Tracks, vias
- 2,382, 336
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Sep 2021
- Updated
- 4 Jan 2024
Overview
USB C DB is an open-source printed circuit board by Rr42, from the Rr42/USB-C-DB repository on GitHub, published under the MIT licence. It is a 4-layer board of 85.6 × 54 mm with 202 parts on 135 nets, routed with 2,382 tracks and 336 vias.
It is built around the ESP-WROOM-02, FT231XS-R and 74HC595, with the NA555D, XP262N7002TR-G and 1N4148W among its other parts. Its parts include 87 diodes, 46 resistors, 29 capacitors, 14 connectors and 10 ICs. It belongs with the lEDs and displays and power boards of this library.
Main components
8
ESP-WROOM-02
SMD-18P-40℃~+85℃ -98dBm 170mA 2.4GHz 2.7V~3.6V 20dBm 50mA、56mA ESP8266EX On-board PCB Antenna UART、SPI、I2C、GPIO、PWM、I2S SMD-18P WiFi Modules ROHSEspressif SystemsWiFi Modules
FT231XS-R
SSOP-20-150mil-40℃~+85℃ 125uA 5V 8.4mA USB 2.0 USB to UART SSOP-20-150mil USB Converters ROHSFTDIUSB Converters
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
NA555D
SOIC-8-40℃~+105℃ 1 200mA 2mA 4.5V~16V Adjustable duty cycle oscillation、Reset function SOIC-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
XP262N7002TR-G
SOT-23MOSFETsTorex Semiconductor
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes3352T-1-105LF
插件Potentiometers & Variable ResistorsBourns
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
README
README.mdUSB-C display board for Micro-controllers
This is a mini display board with a USB Type-C connector (carrying USB 2.0) and an onboard micro-controller.
The goal of this display board is to test and evaluate:
- The USB-C interface for a Micro-controller
- This design uses ESP-WROOM-02
- (TENTATIVE) Implementation of an onboard battery to power the board when disconnected from power
- (TENTATIVE) Onboard battery charging capability using USB-C
Design overview
Connecting and booting
To connect to the display board, simply connect it to power and connect to the WiFi network USB-C DB it hosts.
Once connected navigate to http://192.168.1.1 and click/press Play boot animation.
Once the boot animation plays the page will reload with all the functions enabled.
Power consumption
The USB-C display board consumes anywhere from 450mW to a maximum of 800mW depending on the brightness level from 5V USB.
Note that the display board does not have the capability and will not negotiate to any of the higher voltage levels offered by USB PD
For context a 500mAh battery will be able to power the display board for about 3.5 hours (with maximum power level of 800mW) and about 5.5 hours (at the lower 450mW power level).
Main page
Display controller hierarchy
License
The Software and firmware of this project is licensed under the the MIT license and the hardware is under the Open Source Hardware license.
Parts
202| Qty | Value | Footprint | References |
|---|---|---|---|
| 80 | LED_ARGB | LED_SMD:LED_Cree-PLCC4_3.2x2.8mm_CCW | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +64 |
| 20 | 583 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14, R16, R17, R19, R20, R22, R23, R25, R26, R28, R29, R31, R32, R34, R35 +4 |
| 15 | 309 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R5, R15, R18, R21, R24, R27, R30, R33, R36, R39, R42, R43, R44 |
| 11 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C7, C8, C11, C12, C15, C17, C19, C21, C23, C29 |
| 10 | XP262N7002TR-G | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10 |
| 7 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R9, R10, R11, R12, R45, R46 |
| 7 | 47p | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C3, C24, C25, C26, C27, C28 |
| 5 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14, C16, C18, C20, C22 |
| 5 | LED | LED_SMD:LED_Cree-PLCC4_3.2x2.8mm_CCW | D1, D2, D3, D84, D85 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4, C9, C10 |
| 4 | 74HC595 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U6, U7, U8, U9 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D86, D87 |
| 2 | 4.7u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C13 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 1 | 1 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 3352T-1-105LF | Mouser-imports:3352T1103LF | VR1 |
| 1 | 3u | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | FB1 |
| 1 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 74HC595_mod | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U5 |
| 1 | ESP-WROOM-02 | RF_Module:ESP-WROOM-02 | U4 |
| 1 | FT231XS | Package_SO:SSOP-20_3.9x8.7mm_P0.635mm | U3 |
| 1 | FT_VCCIO | TestPoint:TestPoint_Pad_D1.0mm | J4 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.0mm | J5 |
| 1 | IBUS_S+ | TestPoint:TestPoint_Pad_D1.0mm | J12 |
| 1 | IBUS_S- | TestPoint:TestPoint_Pad_D1.0mm | J13 |
| 1 | LD1117S33TR_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | LOGO | USB-C-DB:oshw-spfmb | G1 |
| 1 | MCU_EN | TestPoint:TestPoint_Pad_D1.0mm | J7 |
| 1 | MCU_IO0 | TestPoint:TestPoint_Pad_D1.0mm | J9 |
| 1 | MCU_RST | TestPoint:TestPoint_Pad_D1.0mm | J6 |
| 1 | NA555D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 1 | NUF2221W1T2G | Mouser-imports:SOT65P210X110-6N | U2 |
| 1 | P3V3 | TestPoint:TestPoint_Pad_D1.0mm | J2 |
| 1 | PWM_BC | TestPoint:TestPoint_Pad_D1.0mm | J16 |
| 1 | RESETN | TestPoint:TestPoint_Pad_D1.0mm | J14 |
| 1 | UART_DTRN | TestPoint:TestPoint_Pad_D1.0mm | J10 |
| 1 | UART_RTSN | TestPoint:TestPoint_Pad_D1.0mm | J11 |
| 1 | USB4105-GF-A | SnapEDA-imports:GCT_USB4105-GF-A | J1 |
| 1 | VBUS | TestPoint:TestPoint_Pad_D1.0mm | J3 |
The 199 most common of 202 parts.
Questions
How big is the USB C DB PCB?
It measures 85.6 × 54 mm and has 4 copper layers, 1.6 mm thick.
What parts does the USB C DB use?
202 parts, built around the ESP-WROOM-02, FT231XS-R, 74HC595 and NA555D. 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 C DB KiCad files?
From the Rr42/USB-C-DB repository on GitHub, at the commit this page was made from: the board is Hardware/USB-C-DB/USB-C-DB.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the USB C DB design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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