--- key: mechanic/phone-flashlight--family-control type: mechanic id: phone-flashlight--family-control lang: en title: Light control summary: >- The app switches the LED and adjusts supported light controls. phyphox sets brightness, frequency and duty cycle; limits depend on the phone. updatedAt: '2026-10-22' status: active url: >- https://gamemechanics.pro/en/knowledge/mechanic/phone-flashlight--family-control/ jsonUrl: >- https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-flashlight--family-control.json markdownUrl: >- https://gamemechanics.pro/content/knowledge/en/mechanic/phone-flashlight--family-control.md aliases: [] tags: - Phone flashlight interactions - Mechanics catalog sourceIds: - source-bdbe910fe2426deb sources: - id: source-bdbe910fe2426deb title: phyphox url: 'https://apps.apple.com/us/app/phyphox/id1127319693?uo=4' verifiedAt: null relations: [] placements: - catalogId: phone-flashlight id: family-control title: Phone flashlight interactions url: 'https://gamemechanics.pro/en/mechanics/phone-flashlight/#family-control' categoryIds: - section-1 supersededBy: [] attributes: preview: updatedAt: '2026-10-22' title: Light control description: >- The app switches the LED and adjusts supported light controls. phyphox sets brightness, frequency and duty cycle; limits depend on the phone. image: src: images/mechanics/sensor-phyphox-4.webp width: 663 height: 1440 crop: x: 0 'y': 92 width: 663 height: 970 game: phyphox sourceUrl: 'https://apps.apple.com/us/app/phyphox/id1127319693?uo=4' originalUrl: >- https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3e/83/1f/3e831fc9-b4dc-57f8-fad4-b2fd5cd5243c/iphone-05-strobe.png/720x1560bb.jpg credit: RWTH Aachen University rights: >- © RWTH Aachen University. Developer-distributed App Store screenshot. All rights reserved; excluded from MIT and CC BY 4.0. caption: 'phyphox: LED brightness, frequency and pulse duration' alt: 'phyphox: LED brightness, frequency and pulse duration' markers: - x: 64 'y': 16 label: Brightness and frequency control the phone’s physical flashlight tips: - >- Check LED availability and hardware limits, and provide an easy way to turn it off. examples: - title: phyphox url: 'https://apps.apple.com/us/app/phyphox/id1127319693?uo=4' endsAt: null provenance: >- Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review. license: CC-BY-4.0 codeLicense: MIT attribution: gamemechanics.pro contributors catalogKey: catalog/phone-flashlight --- # Light control id: phone-flashlight--family-control type: mechanic key: mechanic/phone-flashlight--family-control lang: en status: active url: https://gamemechanics.pro/en/knowledge/mechanic/phone-flashlight--family-control/ The app switches the LED and adjusts supported light controls. phyphox sets brightness, frequency and duty cycle; limits depend on the phone. ## At a glance ![phyphox: LED brightness, frequency and pulse duration](https://gamemechanics.pro/images/mechanics/sensor-phyphox-4.webp) [phyphox](https://apps.apple.com/us/app/phyphox/id1127319693?uo=4) · © RWTH Aachen University. Developer-distributed App Store screenshot. All rights reserved; excluded from MIT and CC BY 4.0. 1. Brightness and frequency control the phone’s physical flashlight - Check LED availability and hardware limits, and provide an easy way to turn it off. - [phyphox](https://apps.apple.com/us/app/phyphox/id1127319693?uo=4) ## How it works Ways to turn on, change and automatically turn off the flashlight. ## Variants ### Variants and applications - Switch. Action: Click to turn on; press again to turn off. Application: Inspection of the room, switching game mode, normal lighting. Requirements: Rear LED and app control. Conditions: The application manages its state and checks the availability of the flashlight. - Light when held. Action: Shine while the finger holds the button. Application: Illuminate evidence, support the shield, occupy one of the player's hands. Requirements: Rear LED and app control; Software game rule. Conditions: Press and release events give accurate game input; loss of focus turns off the light... - Single impulse. Action: On command, briefly turn on the flashlight and turn it off automatically. Application: Photo hunting, short disclosure of the scene, confirmation of the action. Requirements: Rear LED and control from the application. Conditions: LED duration and delay vary by device; This is not an accurate laboratory strobe. - Light for a set time. Action: Select the duration of one continuous activation. Application: Secondary inspection, time window of action, household light timer. Requirements: Rear LED and app control. Conditions: Use the application timer, and do not measure time by real brightness. - Delayed activation. Action: Start the countdown to power up. Application: Set the stage, take position for the shadow task, start the round. Requirements: Rear LED and app control. Conditions: When an application goes into the background, the behavior must be checked on the target OS. - Brightness levels. Action: Select low, medium or bright light. Application: Close inspection, glare reduction, selection of gaming impact strength. Requirements: Rear LED and app control; Support brightness adjustment. Conditions: Power control required; the number of levels and actual illumination vary. - Smooth change. Action: Increase or decrease brightness during hold time. Application: Dawn in a miniature theater, setting up a virtual device. Requirements: Rear LED and control from the application; Support brightness adjustment. Conditions: Smoothness limited by available hardware stages; provide a discrete option. - Gesture control. Action: Tilt, turn or moderate shake to turn on the light. Application: Flashlight without searching for a button, imitation of a hand generator. Requirements: Rear LED and control from the application; Motion sensors and calibration. Conditions: Sensors detect the movement of the phone; random gestures need to be weeded out. - Sound control. Action: Turn on by voice command, clap or specified sound. Application: Busy hands, theater team, musical play. Requirements: Rear LED and app control; Microphone for external sound. Conditions: Microphone and recognition required; The loudness of the clap itself does not identify the player. - Automatic switching on by condition. Action: Turn on when it is dark, a recognized tag or a game event. Application: Adaptive inspection, entry into the game area, event light signal. Requirements: Rear LED and control from the application; Environmental sensor or chamber analysis replacing it; Software game rule. Conditions: Darkness requires an accessible sensor or camera; a game event can be purely programmatic. ## Context and limits Author's working classification for designing games and interactions. Options can overlap and combine; the list is not a generally accepted standard or proven exhaustive list. Application examples are conditional unless a specific verifiable observation is indicated nearby. Sources support individual techniques and technical limitations. ## Connected materials ## Sources and provenance Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review. - [phyphox](https://apps.apple.com/us/app/phyphox/id1127319693?uo=4) (id: source-bdbe910fe2426deb) CC-BY-4.0 · gamemechanics.pro contributors