Version: 1.0
Author: SIGMAT3CH
License: GNU General Public License v3.0
UltraPreciseKeyMaster is a high-precision AutoHotkey script designed for ultra-accurate keypress simulation. It uses advanced timing calibration, statistical filtering, and spinlock sleeping to achieve reliable, low-latency key holds, particularly useful for tasks that demand consistent input timing such as gaming, automation, or testing.
- Realtime Process Priority – Ensures the script runs with maximum CPU priority.
- Advanced Calibration System – Measures system overhead using statistical filtering and outlier rejection.
- Dynamic Timing Adjustment – Adjusts key hold duration based on real-world timing deviations.
- Timing Diagnostics – Visual feedback for timing accuracy and adjustments.
- Customizable Hold Time – Modify key hold duration live via hotkeys or precise input.
- Auto Recalibration – Periodically recalibrates to maintain accuracy during long runtimes.
- Spinlock Precision Sleep – Avoids delays from standard sleep methods with tight timing loops.
| Hotkey | Description |
|---|---|
F1 |
Toggle the script on/off |
e |
Press & hold the key precisely |
Ctrl + ↑ / ↓ |
Increase/decrease hold time by 0.01 ms |
Ctrl + Shift + ↑ / ↓ |
Adjust hold time by 0.1 ms |
Ctrl + E |
Input a specific hold time (in ms) |
Alt + T |
Toggle timing diagnostics on/off |
Ctrl + Esc |
Exit and clean up the script |
Note: The key being simulated by default is
e. You can change this in theCustomEsection.
- Calibration: On startup and at regular intervals, the script measures how long it takes to send a keystroke and adjusts timing based on system overhead.
- Spinlock Sleep: Instead of using
Sleep, which is coarse, it uses high-frequency performance counters to wait with sub-millisecond accuracy. - Diagnostics: When enabled, timing differences are displayed in real-time so you can see how accurately the script is performing.
- Install AutoHotkey v1.1.
- Save the script as
UltraPreciseKeyMaster.ahk. - Run the script by double-clicking it or placing it in your startup folder for automatic launch.
- Press
F1to activate.
To change the key being simulated (default: e), edit these lines:
Hotkey, *e, CustomE, On Hotkey, *e Up, CustomE_Up, On
And replace all instances of:
SendInput, {e down}...SendInput, {e up} With your desired key, such as {a down} / {a up}.
This project is licensed under the GNU General Public License v3.0. See LICENSE for more information.
This script is provided as-is, with no warranty. While designed for maximum accuracy, results may vary depending on your hardware, OS version, and background processes.
For questions or improvements, feel free to contribute or open an issue.
Happy scripting! — SIGMAT3CH