

Sidewinder usb
USB adapter for the MS SideWinder 3D Pro joystick
- Size
- 40 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 49
- Pads
- 110
- Tracks, vias
- 114, 5
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Feb 2020
- Updated
- 31 Dec 2020
Overview
Sidewinder usb is an open-source printed circuit board by mwuertinger, from the mwuertinger/sidewinder-usb repository on GitHub. It is a 2-layer board of 40 × 55 mm with 22 parts on 49 nets, routed with 114 tracks and 5 vias.
It is built around the ATMEGA32U4-AU. Its parts include 7 capacitors, 5 resistors, 2 connectors, 1 IC and 1 switch. It belongs with the keyboards and input and interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdsidewinder-usb
This repository contains hard- and software for building a USB adapter for the MS SideWinder 3D Pro joystick.
The joystick uses a proprietary protocol over the analg gameport which makes it impossible to use standard off the shelf gameport USB adapters. The protocol works by sending a state vector over the three button lines of the gameport. There is no analog transmission taking place. More details can be found in US patent 5628686A or in the Linux driver implementation.
Software
The software is taken from sw3dprousb with permission from the author. All credit regarding the software goes to the original author.
The ATmega32u4 controller comes with a pre-configured bootloader which is DFU compatible. This allows to flash the firmware via USB without the need for an ICSP port.
The flash-firmware.sh script can be used to flash the firmware on a newly assembled board using the dfu-programmer utility. This should work out of the box on Linux systems provided that there is only one DFU device present.
Hardware
The hardware is based on a minimal design around the ATmega32u4 microcontroller and follows the suggestions from the sw3dprousb project as well as from this DescentBB thread.
Schematic

Board Layout

Picture of an assembled v0.2 board

Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole:MountingHole_3.2mm_M3 | , , , | |
| 2 | 2.2k | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | 2.2n | Capacitor_SMD:C_0805_2012Metric | C6, C7 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 16MHz | sidewinder-usb:Auris_HC49USSMD | Y1 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 500mA | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | DB15_Female | 618015233821_Eagle_WR-DSUB_rev20a:618015233821 | J2 |
| 1 | Reset | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J1 |
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Questions
How big is the Sidewinder usb PCB?
It measures 40 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sidewinder usb use?
22 parts, built around the ATMEGA32U4-AU. 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 Sidewinder usb KiCad files?
From the mwuertinger/sidewinder-usb repository on GitHub, at the commit this page was made from: the board is hardware/sidewinder-usb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sidewinder usb design in my own project?
Its repository states no licence, so its author keeps all rights: ask mwuertinger before reusing the design.