Daytripper is a laser tripwire system that detects motion and triggers actions on a connected computer. The project uses a laser sensor module paired with microcontroller firmware to detect when a beam is broken, then communicates with a host computer to execute programmed responses. The primary use case is automatically hiding windows or triggering other desktop actions when motion is detected near a physical location, creating a simple but effective privacy mechanism for shared or monitored spaces.
The system works by positioning an infrared laser and receiver across a doorway or other passage. When motion breaks the beam, the microcontroller detects the interruption and sends a signal to the computer, which then executes a configured action such as minimizing windows or locking the screen. This approach is practical for scenarios where you need immediate, automatic response to physical intrusion without relying on software-only detection methods. The hardware component is relatively inexpensive and straightforward to assemble, making it accessible for hobbyists and small deployments.
Daytripper suits anyone who wants a tangible, hardware-based trigger for desktop automation rather than relying solely on software timers or manual intervention. It works well for home offices, shared workspaces, or any environment where you need to quickly obscure sensitive information when someone approaches. The project is most appropriate for users comfortable with basic electronics assembly and microcontroller programming, as it requires setting up the laser module and flashing firmware to the device.
Development on the project shows active maintenance with regular updates addressing bugs and adding features. The codebase demonstrates attention to code quality and documentation, with clear explanations of how to assemble and configure the hardware. The maintainer responds to user issues and incorporates feedback, indicating ongoing engagement with the user community. The project includes practical examples and troubleshooting guidance, suggesting a focus on making the system accessible to users beyond the original developer.
