invilab Handles Electronic Circuit Design and Control App Development for Prop 'dejavu' in Movie 'Mystery Arena'
invilab K.K. developed the electronic circuit and control application for the prop 'dejavu' featured in the nationwide released film 'Mystery Arena'. The design ensures stable operation within a limited space and enables remote operation on set.
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- 📰 Published: May 26, 2026 at 20:24
- 🔍 Collected: May 26, 2026 at 12:01
- 🤖 AI Analyzed: May 26, 2026 at 12:11 (9 min after Collected)
invilab K.K. (Headquarters: Tokorozawa, Saitama; CEO/CTO: Ryota Wakabayashi) announced that it handled the internal electronic circuit design and control application development for the prop 'dejavu', which appears in the movie 'Mystery Arena' (Production: Amazon MGM Studios, Distribution: Shochiku), released nationwide on Friday, May 22, 2026. The 'dejavu' features a control board equipped with a battery, LED, and communication capabilities, designed to allow remote adjustment of LED brightness, color, and blinking via a dedicated app. The exterior was crafted by INAC K.K.
## Internal Electronic Circuit Design
The design required stable operation of lighting, communication, and power functions within a limited space of approximately 4.5cm in height and 1-2cm in width. Although coin cell batteries were initially considered, a rechargeable battery was chosen to ensure the necessary brightness for filming. The design successfully implemented the control board, battery, and charging connector within the small housing while optimizing for stable power consumption. Given the long periods actors might wear the device, energy-saving controls were incorporated to reduce power consumption during idle or standby modes.
## Control App Development
The app requirement was to enable remote operation of LED brightness, color, and blinking patterns. For quick operation on set, brightness adjustment supports both preset stages and manual slider control. Color selection includes standard Red, Green, and Blue buttons alongside full RGB value adjustment. Five blinking patterns can also be set. To address the radio-heavy environment of a film set, the app features a signal strength meter, battery level monitor, and device internal temperature monitoring. A safety feature automatically shifts the LEDs to a power-saving mode if the connection is lost. Throughout the development phase, functions were refined based on real-time feedback from the set, ensuring both the app and device firmware were optimized for practical use.
## Exterior Fabrication (by INAC K.K.)
INAC K.K. was responsible for the master model making, casting, and painting. The 'master' unit (gold) features a half-gold vapor deposition, while the 'slave' units (white) have a diffused milky-white finish. The bridge connector uses elastomer rubber casting to provide both flexibility and a realistic fit.
## Internal Electronic Circuit Design
The design required stable operation of lighting, communication, and power functions within a limited space of approximately 4.5cm in height and 1-2cm in width. Although coin cell batteries were initially considered, a rechargeable battery was chosen to ensure the necessary brightness for filming. The design successfully implemented the control board, battery, and charging connector within the small housing while optimizing for stable power consumption. Given the long periods actors might wear the device, energy-saving controls were incorporated to reduce power consumption during idle or standby modes.
## Control App Development
The app requirement was to enable remote operation of LED brightness, color, and blinking patterns. For quick operation on set, brightness adjustment supports both preset stages and manual slider control. Color selection includes standard Red, Green, and Blue buttons alongside full RGB value adjustment. Five blinking patterns can also be set. To address the radio-heavy environment of a film set, the app features a signal strength meter, battery level monitor, and device internal temperature monitoring. A safety feature automatically shifts the LEDs to a power-saving mode if the connection is lost. Throughout the development phase, functions were refined based on real-time feedback from the set, ensuring both the app and device firmware were optimized for practical use.
## Exterior Fabrication (by INAC K.K.)
INAC K.K. was responsible for the master model making, casting, and painting. The 'master' unit (gold) features a half-gold vapor deposition, while the 'slave' units (white) have a diffused milky-white finish. The bridge connector uses elastomer rubber casting to provide both flexibility and a realistic fit.
FAQ
映画『ミステリー・アリーナ』の小道具「dejavu」の開発はどこが担当しましたか？
invilab株式会社が、筐体内部の電子回路設計および制御アプリの開発を担当しました。
「dejavu」にはどのような機能が搭載されていますか？
バッテリー、LED、通信機能を内蔵し、専用アプリによるLEDの明るさ、色、点滅パターンの遠隔操作が可能です。
「dejavu」の外装製作はどこが担当しましたか？
株式会社イナックが造形マスター製作、着色注型、塗装を担当しました。
映画『ミステリー・アリーナ』の主演は誰ですか？
主演は唐沢寿明です。
invilab株式会社の主な事業内容は何ですか？
研究開発コンサルティング、電子回路設計、組み込み開発、アプリケーション開発、IoTデバイス開発などを手掛けています。