Geeky Gadgets The HEGduino V2 pulse oximeter will soon be launching via the Crowd Supply website and has been designed to provide a next generation device building on the technology incorporated into original and successful HEGduino V1. The HEGduino offers a flexible pulse oximeter, FNIRS and blood-flow biofeedback kit and features new hardware and improved software offering an affordable, adaptive and open source BCI. The HEGduino V2 comes with a free, easy to use pulse oximeter app for both mobile and desktop, with API support that has been evolving since its first release back in 2020 and is continuing to be enhanced with every iteration. New features of the second-generation pulse oximeter include: