Steam Controller Drives Itself to Charging Station via Modder Tool
The mod turns a standard accessory into a proof-of-concept for autonomous peripheral docking using only the controller's existing haptic motors and a webcam.
Reporting from 2 sources: Automaton, Game Spark.
A modder has created a web app that makes the 2026 edition of Valve's Steam Controller autonomously return to its charging station. User Ray Foss published the tool, called "Auto-Charge Tracker," on GitHub. The system uses a webcam to track the controller and the Steam Controller Puck, then vibrates the controller's four haptic motors to move it across a desk until it snaps into the charging station via built-in magnets. Foss was inspired by an earlier app from developer Very Lazy Pixels that turned the Steam Controller into a remote-controlled car using keyboard inputs. Foss combined that vibration-driving technique with camera-based positioning. In a video posted to X on June 25, the controller is seen gliding toward the puck and connecting. Foss warned that the coating on the controller's contact points may wear off from prolonged vibration on a hard surface. The Steam Controller, released on May 5, sold out on its launch day. The app is free to use and requires a webcam and a PC running Steam.
Foss's "Auto-Charge Tracker" is a browser-based web app that requires no additional software beyond a webcam and a PC running Steam. The user places the Steam Controller and the Steam Controller Puck on a desk, films them from above, and marks their positions in the app. The controller then uses its four haptic motors to vibrate across the desk toward the puck, which has strong built-in magnets that snap the controller into the correct charging position.
Foss said he was inspired by a web app from developer Very Lazy Pixels, which turned the Steam Controller into a remote-controlled car using keyboard inputs to control the vibration function. Foss combined that vibration-driving technique with camera-based positioning. The app is free to use and published on GitHub.
In a video posted to X on June 25, the controller is seen gliding toward the puck and connecting. The post gained about 6,000 reposts at the time of writing. Foss warned that the coating on the controller's contact points may wear off from prolonged vibration on a hard surface. He also noted that "success is not guaranteed" and that the motor adjustments are optimized for the 2026 edition of the Steam Controller.
The Steam Controller, released on May 5, sold out on its launch day. It supports both wired and wireless connections, works with Steam Input and the mobile Steam Link app, and features two trackpads like the Steam Deck.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.