2 layers76.2 × 50.8 mm
2 layers43.8 × 31.8 mm
Cbu
0x007E/cbuCAN-Bus UART
- Size
- 43.8 × 31.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 53
- Nets
- 46
- Pads
- 149
- Tracks, vias
- 146, 73
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 May 2026
- Updated
- 8 Aug 2026
Overview
Cbu is an open-source printed circuit board by 0x007E, from the 0x007E/cbu repository on GitHub. It is a 2-layer board of 43.8 × 31.8 mm with 53 parts on 46 nets, routed with 146 tracks and 73 vias.
It is built around the FT230XS-R, LM1117DT-3.3 and AO3416A, with the BAT43 among its other parts. Its parts include 19 resistors, 8 connectors, 6 diodes, 5 capacitors and 3 transistors. It belongs with the interfaces and adapters boards of this library.
Main components
4
FT230XS-R
SSOP-16-150mil-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART SSOP-16-150mil USB Converters ROHSFTDIUSB Converters
LM1117DT-3.3
TO-2520℃~+125℃@(Tj) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
AO3416A
SOT-23-40℃~+150℃ 1 N-channel 1.1V 1.295nF 1.4W 10nC@4.5V 160pF 20V 25mΩ@4.5V 6A 87pF SOT-23 MOSFETs ROHSUMWMOSFETs
BAT43
DO-204AH-65℃~+125℃ 1 Independent 1V@0.2A 200mA 30V 4A 500nA@25V DO-204AH Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
Parts
53| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 3k3 | Resistor_SMD:R_1206_3216Metric | R14, R15, R16, R17 |
| 3 | 330 | Resistor_SMD:R_1206_3216Metric | R18, R19, R20 |
| 3 | 470 | Resistor_SMD:R_1206_3216Metric | R2, R10, R11 |
| 3 | AO3416A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 3 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J4, J5, J12 |
| 3 | Conn_01x03_Socket | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J1, J6, J7 |
| 2 | 0 | Resistor_SMD:R_1206_3216Metric | R12, R13 |
| 2 | 0 | Resistor_SMD:R_0603_1608Metric | R7, R9 |
| 2 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C3 |
| 2 | 10u | Capacitor_SMD:CP_Elec_6.3x5.9 | C5, C6 |
| 2 | 22k | Resistor_SMD:R_1206_3216Metric | R6, R8 |
| 2 | 5k1 | Resistor_SMD:R_1206_3216Metric | R4, R5 |
| 2 | Green | LED_SMD:LED_1206_3216Metric | D3, D6 |
| 2 | Red | LED_SMD:LED_1206_3216Metric | D2, D4 |
| 2 | SW_SPST | Button_Switch_SMD:SW_SPST_PTS645 | SW1, SW2 |
| 1 | 10u | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B | C1 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 2.0A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 70Ω/100Mhz/3A | Inductor_SMD:L_1206_3216Metric | FB1 |
| 1 | BAT43 | Diode_SMD:D_MiniMELF | D1 |
| 1 | BIN | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | FID3 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J11 |
| 1 | ESD | Symbol:ESD-Logo_6.6x6mm_SilkScreen | FID1 |
| 1 | FT230XS | Package_SO:SSOP-16_3.9x4.9mm_P0.635mm | U2 |
| 1 | LM1117DT-3.3 | Package_TO_SOT_SMD:TO-252-2 | U1 |
| 1 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1 |
| 1 | OH | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | FID2 |
| 1 | QR | Images:QR_0x007e_very_small | FID4 |
| 1 | SW_DIP_x02 | Button_Switch_SMD:SW_DIP_SPSTx02_Slide_6.7x6.64mm_W8.61mm_P2.54mm_LowProfile | SW3 |
| 1 | USB_C_Receptacle | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J9 |
| 1 | Yellow | LED_SMD:LED_1206_3216Metric | D5 |
Questions
How big is the Cbu PCB?
It measures 43.8 × 31.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cbu use?
53 parts, built around the FT230XS-R, LM1117DT-3.3, AO3416A and BAT43. 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 Cbu KiCad files?
From the 0x007E/cbu repository on GitHub, at the commit this page was made from: the board is pcb/CBU.kicad_pcb and its schematic pcb/CBU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cbu design in my own project?
Its repository states no licence, so its author keeps all rights: ask 0x007E before reusing the design.
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