The folks over at MAKE have a pulse sensor which attaches to your fingertip or earlobe and measures minute changes in light from expansion of the capillary blood vessels to sense your heartbeat. Technical information is available here, including design files, sample code and schmetic. The device is licensed under the TAPR Open Hardware License. […]
Tag Archives: Maker Shed
In the Maker Shed: USB Infrared Toy
Maker Shed now stocks the USB Infrared Toy: The USB Infrared Toy, available in the Maker Shed, is an assembled, open source, USB infrared remote control receiver/transmitter designed by DangerousPrototypes. Use it as a remote control with your computer, to view infrared signals on a logic analyzer, to capture and clone infrared signals, and to […]