ESP32-S3 Air Mouse // Presentation Showcase

Laser Pointer & Fading Trails

Draw lines with your Air Mouse — trails smoothly decay and evaporate

Trail Fade:

X-AXIS

Kinetic Horizontal Carousel

0 px

Use horizontal wrist flick with clutch held to glide across features

01

208 Hz IMU

LSM6DSOX Sensor

Hardware interrupt driven acquisition reading 12 bytes of acceleration and gyro data at microsecond precision.

Latency< 4.8 ms

02

Adaptive Filter

1-Euro Jitter Dampener

Dynamically scales cutoff frequency from 4 Hz at rest to 60 Hz during rapid flicks, killing resting tremor without drag.

Tremor Cutoff4.0 Hz

03

Kinetic Inertia

Subpixel Pan & Scroll

High-resolution REL_WHEEL_HI_RES event mapping with smooth continuous velocity decay and clutch release coasting.

Resolution120 Units/Tick

04

Smart Stability

Dominant Axis Lock

Leaky signed motion integrator locks into pure vertical or horizontal trajectories, preventing unwanted diagonal drift.

Lock Angle1.1 Degrees

05

Horizon Alignment

Madgwick Sensor Fusion

Quaternion-based roll compensation keeps horizontal cursor motion level even when tilting the physical pointer.

Roll Clamp±75.0°

06

Click Defense

Dynamic Slowdown

Instantly dampens sensitivity at the instant of button press, preventing mechanical finger-jolt from displacing the cursor.

Initial Factor0.0x Jump

Y-AXIS

High-Resolution Vertical Feed

0 px

Glide vertically through dense telemetry and sensor packets

2D BIAXIAL FULL SCREEN

Interactive 2D Panning Canvas

AXIS: FREE 2D

Pan freely across both axes with your Air Mouse clutch held. Detects dynamic locking into horizontal or vertical sweeps.

ORIGIN (0, 0)

NORTH-WEST QUADRANT

NORTH-EAST QUADRANT

SOUTH-WEST QUADRANT

SOUTH-EAST QUADRANT

DETECTION PIPELINE

Wrist Flick Feedback

CLUTCH READY

Visual feedback responding to BTN_SIDE (Back) and BTN_EXTRA (Forward)

LEFT FLICK BROWSER BACK BTN_SIDE (Mouse 4)

RIGHT FLICK BROWSER FORWARD BTN_EXTRA (Mouse 5)

Angular Threshold (ω_z) > 2.0 rad/s (~115°/s)

Refractory Cooldown 400 ms debounce

Dynamic Cursor Lock Auto-Freeze during flick

Clutch Requirement Gesture Button Held

🔒 airmouse.local/slides/01-sensor-node

SLIDE 1 / 5

SLIDE 01 // ARCHITECTURE

High-Speed 6-DoF Sensor Node

The LSM6DSOX sensor streams 3-axis accelerometer and 3-axis gyroscope readings at 208 Hz with hardware interrupts directly into the ESP32-S3 over I2C.

Sampling Rate 208 Hz

Bus Protocol I2C (400 kHz)

Hardware IRQ GPIO 7 Int

SLIDE 02 // STABILIZATION

Adaptive 1-Euro Dual-Pass Filter

Human hand tremor is filtered out at resting speed using an ultra-low 4.0 Hz cutoff, seamlessly scaling up to 60 Hz during rapid sweeps to eliminate lag.

Min Cutoff (fc_min) 4.0 Hz

Speed Coeff (Beta) 0.10

Jitter Suppression > 96% Tremor

SLIDE 03 // HORIZON ORIENTATION

Madgwick AHRS Horizon Lock

Quaternion-based horizon projection continuously accounts for wrist roll up to ±75.0°, guaranteeing horizontal pointer motion remains parallel to screen coordinates.

Roll Clamping ±75.0°

Gain (Beta) 0.05

Axis Drift < 0.5° / min

SLIDE 04 // 2D NAVIGATION

Inertial Kinetic Coasting & Lock

High-resolution biaxial pan events with kinetic coasting decay on clutch release. Dominant axis integration prevents unintended diagonal drift during fast flicks.

Wheel Precision 120 Units/Tick

Coasting Decay 0.92 / frame

Lock Threshold 1.1 Degrees

SLIDE 05 // GESTURE RECOGNITION

Zero-Drift Wrist Flick Gestures

Flicking your wrist with the gesture clutch held emits native BTN_SIDE and BTN_EXTRA Linux input events, traversing web pages and slide decks with automatic pointer freeze.

Trigger Speed 2.0 rad/s

Debounce Guard 400 ms

Cursor Suppression Active Freeze

RAPID TRIGGER

Double-Click Reaction Arena

Score: 0

Double-click on any orb or card to test responsiveness and measure exact millisecond interval

TARGET ALPHA

Double Click

TARGET BETA

Double Click

TARGET GAMMA

Double Click

CLICK STABILIZATION

Dynamic Click Slowdown Test

STABLE

Press and hold inside the bullseye. Watch how little the cursor drifts during button engagement.

Current Drift 0.0 px

Peak Drift 0.0 px

Firmware Slowdown ACTIVE (0.0x)

PRIMARY BAY

:::

6-DoF Sensor Node LSM6DSOX (I2C / GPIO 7)

:::

1-Euro Low-Pass Filter 4.0 Hz Cutoff / 0.1 Beta

:::

Madgwick AHRS Fusion Horizon Roll Clamp (±75.0°)

TARGET DEPLOYMENT BAY

:::

Subpixel Kinetic Engine REL_WHEEL_HI_RES (120x)

:::

Dynamic Click Slowdown 0.0x Jolt Zero-Drift Filter

STAGE 1

Laser Trails

Fading laser line drawing canvas for projector spotlighting

STAGE 2

2D Pan & Scroll

Kinetic horizontal carousel, high-res vertical feed & axis locking

STAGE 3

Gesture Nav

Wrist flick back & forth navigation with BTN_SIDE / BTN_EXTRA integration

STAGE 4

Click Stabilization

Rapid double-click timing & zero-drift click slowdown

STAGE 5

Clutch Drag

Object relocation and repositioning dynamics

Kinetic Horizontal Carousel

LSM6DSOX Sensor

1-Euro Jitter Dampener

Subpixel Pan & Scroll

Dominant Axis Lock

Madgwick Sensor Fusion

Dynamic Slowdown

High-Resolution Vertical Feed

Interactive 2D Panning Canvas

Back & Forth Navigation Showcase

Wrist Flick Feedback

High-Speed 6-DoF Sensor Node

Adaptive 1-Euro Dual-Pass Filter

Madgwick AHRS Horizon Lock

Inertial Kinetic Coasting & Lock

Zero-Drift Wrist Flick Gestures

Double-Click Reaction Arena

Dynamic Click Slowdown Test

Repositioning & Precision Drag Arena

Laser Trails

2D Pan & Scroll

Gesture Nav

Click Stabilization

Clutch Drag