Recently, an engineering student created a clever DIY device called the ‘Hakimi Light-Off Gadget,’ which has gone viral online. Using infrared sensing and voice recognition technologies, the gadget allows users to turn off lights with a simple hand wave or by saying ‘Hakimi.’ The idea stemmed from everyday frustrations—like needing to switch off lights while holding hot soup or a stack of books.Far from being an expensive commercial product, ‘Hakimi’ is built from common electronic components: an Arduino board, a relay module, an infrared sensor, a microphone module, and a 3D-printed case. The entire project costs less than $15, showcasing how engineering students can apply technical knowledge to solve real-life inconveniences. The build involved circuit assembly, coding, and structural design—highlighting interdisciplinary problem-solving skills.Interestingly, the name ‘Hakimi’ comes from an internet meme. Originally a Japanese word for ‘honey water’ (hachimitsu), it evolved online into a playful term of endearment. By choosing this whimsical name, the creator adds charm to an otherwise technical project, making tech more approachable and fun.Though small in scale, this invention vividly embodies the principle that ‘engineering serves daily life.’ It has inspired many netizens to request open-source instructions so they can build their own—and encourages more young people to turn classroom learning into practical, creative solutions.
近日，一位工科大学生凭借巧妙的创意和扎实的动手能力，自制了一款名为“哈基米”关灯神器，在网络上引发热议。该装置通过红外感应与语音识别技术，实现“挥手即关灯”或“喊一声‘哈基米’就关灯”的智能控制功能。其灵感来源于日常生活中频繁开关灯的不便，尤其在双手被占用（如端着热汤、抱着书本）时尤为明显。“哈基米”并非复杂昂贵的商业产品，而是由Arduino开发板、继电器模块、红外传感器、麦克风模块及3D打印外壳等常见电子元件组装而成。整个项目成本不足百元，却充分体现了工科生“用技术解决生活痛点”的工程思维。制作过程包括电路连接、代码编写、结构设计等多个环节，展现了跨学科综合应用能力。更有趣的是，“哈基米”这一名字源自网络流行语，原本是日语“蜂蜜水”（hachimitsu）的音译，后被网友戏称为可爱代名词。作者借此命名，既增添趣味性，也拉近了硬核科技与大众之间的距离。目前，该作品已在社交平台收获大量点赞与转发，不少网友表示希望获取开源教程，自己动手复刻。这一小发明虽不宏大，却生动诠释了“工程即服务生活”的理念，也激励更多年轻人将课堂知识转化为实际应用，用创意点亮日常。
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