ESP32-S2 FFB Wheel
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Connect
Refresh
Set center
disconnected
Wheel
Wheel range
degrees, lock to lock (90–1440)
Endstop stiffness
volts per unit over-travel (0–200)
Invert FFB
flip if the spring pushes away from center
Pedal calibration
Throttle min / max
raw ADC (0–4095)
Brake min / max
raw ADC (0–4095)
Auto calibrate
press both pedals through their full travel, then save
Start
Save
Cancel
throttle
0
brake
0
Pins
Throttle / brake pin
ADC1 only: GPIO 1–10
Buttons 1–8
GPIO per HID button, to GND, 0 = unmapped; the dot lights up while pressed. S2 Mini: 1, 2, 4, 6, 8, 10–15, 34, 36–40 free. RP2040-Zero: 8–15, 17–25, 28, 29 free. Invalid pins are rejected with
err bad pin