Not wanting to go the hardware route, he decided to emulate a touch screen in Python. The Python code is fairly simple, taking mouse input and translating it to the serial protocol the 3M ...

“It’s Python scripting on top of OpenGL to create UIs and process touch and other inputs,” said Brian Knapp, a freelance Android application developer and a core participant in Kivy.

Heart rate sensors available for DIY use employ photoplethysmography which illuminates the skin and measures changes in light absorption. These sensors are cheap, however, the circuitry required to… ...