PSOC 5: FlySky iBus to USB joystick bridge

This project aims to create a simple, inexpensive device for connecting FlySky iBus receivers to any USB host machine. The bridge registers as a generic HID joystick, allowing for usage of the transmitter in any game or simulator.

Required components:

• CY8CKIT-059 PSoC® 5LP Prototyping Kit or a compatible, usb-capable board
• Any modern FlySky transmitter/receiver combo
• Connectors

Capabilities

Physical

• 6 analog axes (two gimbals, two pots)
• four digital buttons (top switches)

Features

• regular joystick emulation mode
• inverse Y axis (currently not working)
• positive range mode for compability with simulators (see notes)

Compability

The device was tested with:

• Windows 10 desktop pc
• CY8CKIT-059 PSoC® 5LP Prototyping Kit
• FlySky i6x transmitter
• FlySky x6b receiver
• FPV Freerider
• Flying Model Simulator

Notes

FPV Freerider requires all axes to be [0, 1] instead of [-1, 1]. I am unsure if this is caused by the HID descriptor or something else, but a new compability mode was added to address this.