In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...
BMV080 is a low-power, low-cost PM1, PM2.5, and PM10 sensor module with I2C and SPI interfaces that sells for just $29.90.
Fitness trackers and smartwatches are worn 24/7—which can lead to skin irritation if you're not careful. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal ...