{"schemaVersion":1,"record":{"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}],"sections":[{"id":"principle","title":"How it works","body":"Ways to turn on, change and automatically turn off the flashlight."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-control-variants\"></a>\n\n- 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. <a id=\"variant-1\"></a>\n- 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... <a id=\"variant-2\"></a>\n- 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. <a id=\"variant-3\"></a>\n- 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. <a id=\"variant-4\"></a>\n- 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. <a id=\"variant-5\"></a>\n- 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. <a id=\"variant-6\"></a>\n- 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. <a id=\"variant-7\"></a>\n- 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. <a id=\"variant-8\"></a>\n- 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. <a id=\"variant-9\"></a>\n- 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. <a id=\"variant-10\"></a>"},{"id":"context","title":"Context and limits","body":"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."}],"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"}}