A motion-based adaptive game controller for players with limb differences. Strap it to your arms, tilt to move, flick to attack. No buttons. No joysticks. Just motion.

Most adaptive controllers are expensive, limited, or designed as an afterthought. OmniBlade is built from scratch around a simple idea — if someone has an arm, they can play. Two IMU sensors read the motion of each arm in real time and map it to a full Xbox controller input. Voice handles the rest.

• 2x ESP32 DEVKIT V1 (CP2102, USB-C)
• 2x MPU-6050 6-axis IMU
• 2x Half-size breadboard
• Jumper wires
• 3D printed forearm housing (3MF files in /housing)
• Velcro straps

Each ESP32 reads accelerometer and gyroscope data from its MPU-6050 over I2C at 50Hz. A complementary filter fuses the two signals into stable roll and pitch angles. Gyroscope spikes above a threshold are classified as flick gestures. All of this streams over USB serial to a Python script that maps the data to a virtual Xbox controller using vgamepad.

Voice commands are handled separately by VoiceAttack, which sends F-key presses that the script listens for via pynput.

Flash main.cpp to both ESP32s using PlatformIO or Arduino IDE. Then install Python dependencies:

pip install pyserial vgamepad pynput

Find your COM ports:

[System.IO.Ports.SerialPort]::GetPortNames()

Update LEFT_PORT and RIGHT_PORT in the script, then run:

python dual_imu.py

Hold both arms neutral for 3 seconds on startup for calibration.

• dual_imu.py — universal script, works for any game
• dual_forza.py — Forza specific, analog throttle and brake on right arm tilt

Left arm — tilt for left stick, flicks for X / LT / Y / LB

Right arm — tilt for right stick, flicks for RT / A / B / RB

Voice — Start, Select, D-pad, L3, R3 via VoiceAttack

Full mapping in the user guide.

• Hold arms neutral on startup or calibration will be off
• Some power banks auto-shutoff at low current draw
• vgamepad requires the correct Python environment on Windows