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This research developed an automatic coffee bean roasting machine using stainless steel 304 and an Arduino Mega 2560 microcontroller. The machine's frame, made of stainless steel 304, features a door ...for easy access. A repurposed grill heating element serves as the roaster. Inside, a stainless-steel wire mesh cylinder holds the beans and rotates via a step motor connected to an axis. A tray at the bottom collects the coffee bean flakes. The study experimented with three roast levels: light, medium, and dark. For a light roast, the beans were roasted at 200-250 °C for 375 seconds. The medium roast was done at the same temperature range but for 400 seconds. The dark roast required a temperature of 200-265 °C for 440 seconds. The Arduino Mega 2560 was programmed to automate the heating and motor control. The results showed consistent coffee beans with good taste and a strong coffee aroma.続きを見る
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Mendeley出力
