{"rewrite":{"id":"r_aecedc0657f14c7785ccecd2","clusterId":"c_d17975d163b74bfb90fe99ce","slug":"invilab-designed-the-electronics-and-control-app-for-the-prop-dejavu-in-mystery","model":"deepseek-v4-flash","headline":"Invilab Designed the Electronics and Control App for the Prop 'Dejavu' in Mystery Arena","summary":"Invilab handled the internal electronic circuit design and control app development for the prop \"dejavu\" in the film Mystery Arena, released May 22, 2026. The prop fits a battery, LEDs, communication board, and charging connector into a casing roughly 4.5 cm tall and 1-2 cm wide. The app controls brightness, color, and five blinking patterns remotely.","whyItMatters":"The prop's compact electronics and dedicated control app show how practical engineering constraints on set-limited space, long wear time, wireless interference-shaped the design of a key film object.","webCardHtml":"\u003cp\u003eInvilab Co., Ltd. was responsible for the electronic circuit design inside the casing and the development of the control app for the prop \"dejavu\" in the film Mystery Arena, which opened nationwide on May 22, 2026. The prop is roughly 4.5 cm tall with a base width of 1 to 2 cm. Inside that space, invilab mounted a battery, LEDs, a control board with communication functions, and a charging connector. The design switched from button cell to battery drive after tests showed button cells could not deliver enough light for filming. Power-saving logic was added to handle long wear periods on set.\u003c/p\u003e\u003cp\u003eThe control app allows remote adjustment of LED brightness, color (blue, red, green, or RGB values), and five blinking patterns. It also displays a signal strength meter, battery level, and internal temperature. If the connection drops, the LEDs switch to a power-saving state. The exterior was produced by Inac Co., Ltd., using gold vapor deposition for the main unit, diffused milky white for the sub-unit, and elastomer rubber for the bridge attachment.\u003c/p\u003e","blueskyPost":"Invilab designed the control app for Mystery Arena's prop dejavu with a signal strength meter and battery gauge because wireless interference on set is a known production risk.","twitterPost":"Invilab's dejavu prop app includes a signal strength meter and battery gauge because on-set wireless interference is a known production risk.","threadsPost":"Invilab's control app for the Mystery Arena prop dejavu includes a signal strength meter and battery gauge. Those features exist because wireless interference from cameras and other gear is a known production risk. The app also logs internal temperature and switches to power-saving mode if connection drops.","newsletterBlurb":"Invilab designed the internal electronics and control app for the prop \"dejavu\" in the film Mystery Arena. The casing is about 4.5 cm tall and holds a battery, LEDs, communication board, and charging connector. The app controls brightness, color, and five blinking patterns, and displays signal strength, battery level, and temperature.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/405/4405043/?rss\",\"title\":\"invilab Handles Electronic Circuit Design and Control App Development for Prop \\\"dejavu\\\" in Film \\\"Mystery Arena\\\"\"}]","lintFlagsJson":"[]","lintHits":0,"costUsd":0,"inputTokens":4128,"outputTokens":694,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1779826502,"createdAt":"2026-05-26T05:20:58.000Z","publishedAt":"2026-05-26T05:30:57.000Z","updatedAt":"2026-05-26T05:30:57.000Z"},"cluster":{"id":"c_d17975d163b74bfb90fe99ce","canonicalTitle":"invilab、映画『ミステリー・アリーナ』劇中小道具「dejavu」の電子回路設計と制御アプリ開発を担当","representativeArticleId":"a_abb06acb04a97a5ce7bb0577","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[\"ミステリー・アリーナ\"],\"manga_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-05-26T02:24:17.000Z","lastSeenAt":"2026-05-26T02:24:17.000Z","updatedAt":"2026-05-26T05:30:57.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/405/4405043/?rss","title":"invilab、映画『ミステリー・アリーナ』劇中小道具「dejavu」の電子回路設計と制御アプリ開発を担当"}],"entities":{"anime_titles":["ミステリー・アリーナ"],"manga_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["Invilab designed the internal electronic circuit and control app for the prop 'dejavu' in the film Mystery Arena, which opened nationwide on May 22, 2026.","The prop casing is roughly 4.5 cm tall with a base width of 1 to 2 cm, containing a battery, LEDs, control board, and charging connector.","The design switched from button cell to battery drive after tests showed button cells could not provide enough light for filming.","The control app remotely adjusts LED brightness, color (blue, red, green, or RGB values), and five blinking patterns, and displays signal strength, battery level, and internal temperature.","The exterior was produced by Inac Co., Ltd., using gold vapor deposition for the main unit, diffused milky white for the sub-unit, and elastomer rubber for the bridge attachment."]}