Operation: Ordnance Sand Unit

Accelerometer

Accelerometer sensor configuration

Sensor Type Accelerometer chip used in your project

Range Measurement range (2G is most sensitive)

Data Rate How often the accelerometer is read

Sample Interval: 10 ms Delay between accelerometer readings

Hardware

GPIO pin assignments for your ESP32

LED Data Pin GPIO pin connected to WS2812B data line

I2C SDA Pin I2C data pin for accelerometer

I2C SCL Pin I2C clock pin for accelerometer

Button Pin GPIO pin for mode switching button

Display

LED matrix configuration

Total LEDs Total number of LEDs in your matrix

Matrix Width Number of columns in your LED matrix

Matrix Height Number of rows in your LED matrix

Brightness: 30 LED brightness (1-255). Lower values save power and reduce heat

Physics

Particle simulation parameters

Gravity: 0.98 Strength of gravitational pull on particles

Damping: 0.9 Energy retained when bouncing off walls (1.0 = no energy loss)

Max Velocity: 2.9 Maximum particle speed (pixels per frame)

Acceleration Scale: 0.3 How much tilt affects particle movement

Friction: 0.95 Velocity retained each frame (1.0 = no friction)

Repulsion Strength: 0.5 How strongly particles push each other apart

Repulsion Distance: 1.0 Distance at which particles start repelling

Particles

Particle appearance and count

Particle Count: 16 Number of sand particles to simulate

Min Brightness: 180 Particle brightness when stationary

Max Brightness: 255 Particle brightness when moving fast

Speed Brightness Factor: 50 How much speed affects brightness

Input

Button behavior settings

Debounce Delay: 200 ms Minimum time between button presses to prevent bouncing

Solid Colors

Single-color modes for your particles

Themes

Multi-color themes with special effects