{"rewrite":{"id":"r_13fd5e1176a87886ca0694ce","clusterId":"c_8d20d6170038de7e58fc364a","slug":"digital-candle-uses-trained-ai-model-to-flicker-in-real-time-priced-at-149","model":"deepseek-v4-1-flash","headline":"Digital Candle Uses Trained AI Model to Flicker in Real Time, Priced at $149","summary":"Kevin Bates, who worked on the Arduboy handheld, developed Digital Candle, a 25.2 cm board with 144 amber LEDs arranged 9 by 16. A small neural network trained on footage of real candle flames generates the flicker live at 30 frames per second, rather than looping a prepared animation. The model runs on an Espressif ESP32-S3 and is sold for $149 through Arduboy's online shop.","whyItMatters":"The selling point is not the candle: a 3,545-parameter model running locally on an ESP32-S3 shows AI inference moving into small, cheap, single-purpose hardware sold as open source, with the flame as the demonstration.","webCardHtml":"\u003cp\u003eDigital Candle is a board about 2.8 cm wide, powered over USB Type-C at 5V, with no rechargeable battery inside; a dock is included but external power is required while it runs. The trained model uses a convolutional decoder and carries 3,545 parameters, holding the flame\u0026#39;s behavior in 8 variables that drive the LED lighting patterns. Because the pattern is generated rather than played back, each unit produces a different flicker.\u003c/p\u003e\u003cp\u003eKevin Bates publishes the development software on GitHub, and the individually addressable LEDs let the board double as a clock or notification display, or a Game of Life screen. The board comes in black and white, and a browser demo shows the flame without a purchase.\u003c/p\u003e","blueskyPost":"Digital Candle runs its flame model on an ESP32-S3, the same class of cheap microcontroller hobbyists already flash. The $149 is paying for Kevin Bates's trained neural net, not the silicon.","twitterPost":"Digital Candle generates flame at 30fps on an ESP32-S3, so most of the $149 buys Kevin Bates's trained model, not the chip.","threadsPost":"Digital Candle puts its flame model on an ESP32-S3, the cheap microcontroller hobbyists already flash. The 144 LEDs are commodity parts. What Kevin Bates is charging $149 for is the neural network trained on real flame footage, running live instead of looping.","newsletterBlurb":"Kevin Bates, who worked on the Arduboy handheld, has released Digital Candle, a 25.2 cm board with 144 amber LEDs whose flame is generated by a small neural network trained on footage of real candle flames. The 3,545-parameter model runs on an Espressif ESP32-S3 at 30 frames per second, so the flicker does not repeat on a fixed cycle. It is $149 in Arduboy's online shop, with development software on GitHub and a browser demo of the flame.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261030-digital-candle/\",\"title\":\"Digital Candle, a digital candle that uses AI to simulate flickering flames in real time, arrives at about 24,000 yen\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5255,"outputTokens":831,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1793363952,"createdAt":"2026-10-30T12:33:31.000Z","publishedAt":"2026-10-30T12:38:09.000Z","updatedAt":"2026-10-30T12:38:09.000Z"},"cluster":{"id":"c_8d20d6170038de7e58fc364a","canonicalTitle":"AIで炎の揺らめきをリアルタイムでシミュレートするデジタルろうそく「Digital Candle」が登場、価格は約2万4000円","representativeArticleId":"a_3935de21536ef7ddc87cef6d","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Digital Candle\"],\"studios\":[],\"people\":[],\"type\":\"announcement\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-30T12:00:00.000Z","lastSeenAt":"2026-10-30T12:00:00.000Z","updatedAt":"2026-10-30T12:38:11.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20261030-digital-candle/","title":"AIで炎の揺らめきをリアルタイムでシミュレートするデジタルろうそく「Digital Candle」が登場、価格は約2万4000円"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Digital Candle"],"studios":[],"people":[],"type":"announcement","domain":"other","is_roundup":false},"keyFacts":["Digital Candle was developed by Kevin Bates, who has worked on the Arduboy handheld game console.","The board is about 25.2 cm tall and 2.8 cm wide, with 144 amber LEDs in a 9 by 16 grid.","The AI model uses a convolutional decoder with 3545 parameters and updates the flame at 30 frames per second.","Digital Candle is priced at $149 and sold in Arduboy's official online shop.","The device runs on an Espressif ESP32-S3 and is powered via USB Type-C at 5V with no built-in battery."],"pageLinks":{"healthSlugs":["digital-candle"],"storySlugs":[],"entities":[{"slug":"digital-candle","supported":0,"disputed":0,"contradicted":0,"unverified":4,"overall":"unverified","story_count":1,"has_dossier":false}],"stories":[],"entitiesOk":true,"storiesOk":true}}