

STM32World Development Modules
- Size
- 76.2 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 5
- Nets
- 108
- Pads
- 127
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 6 (file 20211014)
- Created
- 14 Jul 2021
- Updated
- 30 Oct 2025
Overview
Bat is an open-source printed circuit board by STM32World, from the STM32World/hardware repository on GitHub. It is a 2-layer board of 76.2 × 50.8 mm with 5 parts on 108 nets.
It is built around the BQ24073RGTR. Its parts include 4 connectors and 1 IC. It belongs with the STM32 boards of this library.
Main components
1README
README.mdstm32world
Documentation is in our wiki: https://stm32world.com/wiki/STM32World
Parts
5| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | BQ24073RGTR | Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm | U1 |
| 1 | STM32WORLD_BOARD | stm32world:STM32WORLD_BOARD | J4 |
| 1 | STM32WORLD_CONNECTOR_1 | stm32world:PinSocket_2x20_P2.54mm_Vertical_Stackable | J2 |
| 1 | STM32WORLD_CONNECTOR_2 | stm32world:PinSocket_2x20_P2.54mm_Vertical_Stackable | J3 |
| 1 | USB_C_Receptacle_USB2.0 | stm32world:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
How big is the Bat PCB?
It measures 76.2 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bat use?
5 parts, built around the BQ24073RGTR. 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 Bat KiCad files?
From the STM32World/hardware repository on GitHub, at the commit this page was made from: the board is bat/bat.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bat design in my own project?
Its repository states no licence, so its author keeps all rights: ask STM32World before reusing the design.
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