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After seeing some heart rate monitor apps for Android which use the camera and flashlight features of the phones, [Tyson] took on the challenge of coding this for himself. But he’s not using a smart phone, instead he grabbed a headlamp and webcam for his heat rate monitor. To start out he recorded a test video with [...]

Tags:  heart-rate-monitor heat-rate headlamp medical hacks  

[Cameron] decided to give his twenty-year-old headlamp a makeover. He uses it when he’s out for a run and wanted to have more light to see where he’s going, as well as a red tail light on the back. The stock design uses an incandescent bulb on the front of the head band, and a [...]

Tags:  lamp cameron headlamp head-cameron stock-design incandescent-bulb led hacks