4 layers86 × 62 mm
Pedals
janc18/CAE32
Simracing equipment, including hardware, software, and firmware design.
127 parts10GPL-3.0
4 layers49.5 × 49.9 mm
Shifter
janc18/CAE3210Simracing equipment, including hardware, software, and firmware design.
- Size
- 49.5 × 49.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 56
- Nets
- 62
- Pads
- 290
- Tracks, vias
- 707, 103
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 16 Jun 2023
- Updated
- 20 Jul 2025
Overview
Shifter is an open-source printed circuit board by janc18, from the janc18/CAE32 repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 49.5 × 49.9 mm with 56 parts on 62 nets, routed with 707 tracks and 103 vias.
It is built around the RP2040, W25Q128JVSIQ and AP2112K-3.3, with the USBLC6-2P6 among its other parts. Its parts include 17 capacitors, 11 resistors, 6 connectors, 4 ICs and 2 diodes. It belongs with the ESP32, RP2040 and STM32 boards of this library.
Main components
4
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.mdCAE32
CAE32 is a project for building and developing all stages of a gaming wheel for PC, specifically for the GNU/Linux operating system.
If you want to contribute, please read the CONTRIBUTING-english.md file.
Si tu quieres contribuir, por favor lee el documento CONTRIBUTING.md
Overall current status
Developing the UML diagram of the whole system
PCBs
Firmware
Working on the development of the UML diagram for the pedals firmware
Software
Needed the improvement of compilation and flags for the user interface
The stages include:
- PCB Design
- Firmware
- Driver (Kernel module if necessary)
- Configuration and calibration through a graphical user interface (GTK-3)
- Design of mechanisms for pedals, gear lever, and wheel
- Power PCB design for feedback motor control (FFB)
PCB Sponsored by PCBWay
The PCB quality is excellent, the contact with the support service is good, they responded very quickly in the case of any issue, and it has a good PCB finish using the STM assembly service, all the IC pads are correctly soldered. Overall, the total cost of 5 PCBs and 2 PCBs with the assembly service is a very accessible, so I will keep using PCBWAY to build the next PCB iterations
Programming Frameworks and Tools
- Espressif (ESP-IDF)
- STM32CubeIDE
- STM32CubeProgrammer
User Interface
The interface is developed with the GTK 3 framework, which will allow configurations such as:
- Visualization of data graphically and textually (console)
- Transmission type (Manual, Automatic, Sequential, custom) Natively
- Pedal limits, sensitivity
- Pedal type
- Analog input (Potentiometer, Hall effect, and load cell)
- SPI, I2C input (Custom sensor)
- Firmware update
How to compile the project
- Install all the dependencies
sudo apt install cmake make gcc pkgconf libevdev-dev libgtk-3-dev libgtk-3-0 libgtest-dev g++- Run the script to check if all the dependencies was successfully installed
./Source_code/checking_dependency.sh- Execute the Makefile to build the graphic interface and the unit tests
make -C Source_code/Parts
56| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 0u1 | Capacitor_SMD:C_01005_0402Metric | C3, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C17 |
| 4 | 27 | Resistor_SMD:R_0402_1005Metric | R3, R4, R10, R11 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R2, R5 |
| 3 | 1u | Capacitor_SMD:C_01005_0402Metric | C4, C5, C16 |
| 3 | MH | MountingHole:MountingHole_2.7mm_M2.5_Pad_Via | H1, H2, H3 |
| 2 | 22p | Capacitor_SMD:C_01005_0402Metric | C1, C2 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R8, R9 |
| 2 | TP | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 12Mhz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 500mA | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | Conn_01x03_Socket | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_01x13_Socket | shifter:Pad_1x13_THT_1.27mm | J3 |
| 1 | Conn_01x13_Socket | Connector_FFC-FPC:Hirose_FH12-13S-0.5SH_1x13-1MP_P0.50mm_Horizontal | J4 |
| 1 | DNF | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | EXP-PORT | Connector_FFC-FPC:Hirose_FH12-18S-0.5SH_1x18-1MP_P0.50mm_Horizontal | J1 |
| 1 | G*** | kibuzzard-6517AD32 | kibuzzard-6517AD32 |
| 1 | G*** | kibuzzard-64B75D82 | kibuzzard-64B75D82 |
| 1 | G*** | kibuzzard-6511E845 | kibuzzard-6511E845 |
| 1 | G*** | kibuzzard-6511E886 | kibuzzard-6511E886 |
| 1 | G*** | kibuzzard-651234A4 | kibuzzard-651234A4 |
| 1 | G*** | kibuzzard-64B759C0 | kibuzzard-64B759C0 |
| 1 | G*** | kibuzzard-651234C4 | kibuzzard-651234C4 |
| 1 | G*** | kibuzzard-6518B6F6 | kibuzzard-6518B6F6 |
| 1 | PWR | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | SPI_DEVICE | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J2 |
| 1 | STATUS | LED_SMD:LED_0402_1005Metric | D2 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U4 |
| 1 | USB_BOOT | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J6 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
Questions
How big is the Shifter PCB?
It measures 49.5 × 49.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Shifter use?
56 parts, built around the RP2040, W25Q128JVSIQ, AP2112K-3.3 and USBLC6-2P6. 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 Shifter KiCad files?
From the janc18/CAE32 repository on GitHub, at the commit this page was made from: the board is Schematics/CAE32_PCB/Shifter/Shifter.kicad_pcb and its schematic Schematics/CAE32_PCB/Hall_PCB/hall_pcb/hall_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shifter design in my own project?
Its repository publishes it under the GPL-3.0 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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