A lightweight Telemetry SDK plugin that switches your blinkers on and off by itself, based on real steering angle — just like a modern truck.
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Tired of forgetting your blinker at every intersection? AutoBlinker reads your steering input in real time: steer past ~70 degrees — the natural turn at a traffic light, a highway exit or a company entrance — and the correct turn signal switches on by itself. Straighten the wheel and it switches off. No keys to press, no bindings to configure, nothing to enable in the mod manager.
✦ Features
- Fully automatic — left/right blinker follows your actual steering angle with hysteresis (on at ~70°, off when the wheel straightens), so it never flickers mid-turn
- Native input injection — uses the official SCS Input SDK semantical device. It triggers the game's own lblinker/rblinker actions directly. No keyboard simulation, no macros, no memory hacking
- Minimum speed filter — won't blink while parking or crawling in a yard (configurable)
- Hold & toggle modes — match it to your controller setup
- Live config reload — edit the INI while driving, changes apply in ~2 seconds, no restart
- Pause-aware — does nothing in menus, map screen or while the sim is paused
- Works with keyboard, gamepad and steering wheels
Single DLL exporting both SCS SDK interfaces:
- Telemetry API — reads truck.effective.steering, speed, current blinker state and pause state every frame
- Input API — registers a semantical input device whose inputs auto-bind to the existing mixes in your controls.sii. The game treats it exactly like a hardware button press
✦ Installation (30 seconds)
- Close the game
- Copy autoblinker.dll and autoblinker.ini into:
(create the plugins folder if it doesn't exist — same path under Euro Truck Simulator 2 for ETS2)
Code: Select all
...\SteamLibrary\steamapps\common\American Truck Simulator\bin\win_x64\plugins\ - Launch the game. Press OK on the standard "advanced SDK features" warning (normal for every telemetry plugin, e.g. dashboards or ProMods Trucky)
- Drive. Turn. Watch the blinker do its job

✦ Configuration (autoblinker.ini)
Code: Select all
steer_on = 0.157 ; activation threshold (~70 degrees of steering)
steer_off = 0.06 ; release threshold (hysteresis prevents flicker)
min_speed = ... ; no blinking below this speed (km/h)
mode = hold ; hold = follows the wheel | toggle = fires the blinker action once
✦ Compatibility
- American Truck Simulator and Euro Truck Simulator 2, 1.60+ (telemetry SDK is version-stable, so future patches should work too)
- Compatible with every mod — it touches zero game files
- Plays fine alongside other telemetry plugins (dashboards, Trucky, SimHub)
>>> https://drive.google.com/file/d/1-pwSrL ... sp=sharing<<<
ZIP contains: autoblinker.dll, autoblinker.ini, install guide (EN/ES) and credits.
✦ Video — see it in action
[youtube]https://youtu.be/OvCbmXShbzQ?si=fPllISZU9ZVGHMS7[/youtube]
✦ Credits
Created by Express Mods & Tips — devs: 6 & tarkin711
More mods & tutorials: youtube.com/@ExpressModsTips
Free release. Please do not reupload — link to this topic instead.
✦ Changelog
v1.0 — initial release: automatic left/right blinkers by steering angle, hysteresis, min speed filter, hold/toggle modes, INI hot-reload, ATS + ETS2 support.
Feedback and threshold reports for different wheels/controllers are very welcome in this topic — support happens here, for everyone.