4 layers50 × 50 mm
Trellis core
protolux-electronics/trellis_core
A barebones KiCad project for Allwinner T113-based designs
89 parts13CERN-OHL-P-2.0
2 layers48 × 51 mm
BB STM32 Dev Board
tkraf/BB-STM32WL_Dev_BoardA dev board for the BB-STM32WL
- Size
- 48 × 51 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 53
- Pads
- 180
- Tracks, vias
- 186, 41
- Pours
- 137
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Oct 2024
- Updated
- 22 Jan 2025
Overview
BB STM32 Dev Board is an open-source printed circuit board by tkraf, from the tkraf/BB-STM32WL_Dev_Board repository on GitHub. It is a 2-layer board of 48 × 51 mm with 47 parts on 53 nets, routed with 186 tracks and 41 vias.
It is built around the TLV62569PDDCR. Its parts include 13 resistors, 8 diodes, 8 connectors, 6 capacitors and 3 ICs. It belongs with the microcontroller boards boards and the STM32 boards of this library.
Main components
1README
README.mdBB-STM32WL_Dev_Board
A development board for the BB-STM32WL that supports LiPo batteries, solar charging, USB programming, and a virtual COM port.
Features
- LiPo Battery Support: Easily connect and use LiPo batteries for power.
- Solar Charging: Integrated solar charging capabilities to keep your board powered sustainably.
- USB Programming: Convenient USB interface for programming the device.
- Virtual COM Port: Access a virtual COM port for serial communication.
Setup
-
Powering the Board:
- Connect a LiPo battery to the BAT connector on the back of the board.
- Optionally, connect a solar panel to the VIN connector.
- The board can also be powered through the USB port.
-
Programming:
- Connect the board to your computer using a USB cable.
- The board should be recognized as a USB Serial device.
- Use your preferred development environment to program the board.
-
Using the Virtual COM Port:
- Once connected via USB, the board will provide a virtual COM port.
- Use any serial communication software to interact with the board.
License
This project is licensed under the MIT License. See the LICENSE file for details.
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 665 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9, R10, R15, R16, R17 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C12, C13 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_TopBottom | H1, H2, H3, H4 |
| 3 | ~ | Diode_SMD:D_SOD-123 | D4, D7, D8 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R18, R19 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 2 | Conn_01x12 | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J8, J9 |
| 1 | 100K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12 |
| 1 | 1uH | Component Libraries:Bourns SRP4020TA | L1 |
| 1 | 2169900003 | Downloaded Footprints:MOLEX_2169900003 | J1 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 3V-16V | Connector_Molex:Molex_PicoBlade_53261-0271_1x02-1MP_P1.25mm_Horizontal | J6 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7 |
| 1 | 453K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11 |
| 1 | 50K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R20 |
| 1 | 97K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R21 |
| 1 | BATTERY | Connector_Molex:Molex_PicoBlade_53261-0271_1x02-1MP_P1.25mm_Horizontal | J7 |
| 1 | BOOT | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | FULL | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D6 |
| 1 | I2C | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | LED_Small | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D3 |
| 1 | MCP2221AxST | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | MCP73831-2-MC | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.7x1.4mm | U1 |
| 1 | ON_OFF | Button_Switch_THT:SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW4 |
| 1 | POWER | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D5 |
| 1 | RESET | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW2 |
| 1 | RX | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D2 |
| 1 | SPI | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TLV62569PDDCR | Component Libraries:SOT95P280X110-6N | U2 |
| 1 | TX | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D1 |
| 1 | USART | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J3 |
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Questions
How big is the BB STM32 Dev Board PCB?
It measures 48 × 51 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BB STM32 Dev Board use?
47 parts, built around the TLV62569PDDCR. 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 BB STM32 Dev Board KiCad files?
From the tkraf/BB-STM32WL_Dev_Board repository on GitHub, at the commit this page was made from: the board is BB-STM32 Dev Board.kicad_pcb and its schematic BB-STM32 Dev Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BB STM32 Dev Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask tkraf before reusing the design.