Haptic

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Kravitz Lab edited this page Jan 26, 2026 · 1 revision

FED4 Haptic Functionality

The FED4 drives a haptic motor via the MCP expander (pin EXP_HAPTIC). Used for vibration feedback on pokes, buttons, and events.

Functions

hapticBuzz(duration) — single buzz (default 100 ms).
hapticDoubleBuzz(duration) — two buzzes (default 25 ms each).
hapticTripleBuzz(duration) — three buzzes (default 5 ms base; on/off = duration×10).
hapticRumble(duration_ms) — low-frequency PWM rumble (default 300 ms, 50 Hz).

Durations are in milliseconds unless noted. See FED4_Haptic.cpp.