Raspberry  Pi4  with 8 gb RAM

New Features! The latest model of our favourite single-board computer includes great new headline features such as dual 4K (yes 4K!) displays, super-fast USB 3.0, Gigabit Ethernet and budget-accommodating RAM options. Raspberry Pi 4 Model...

A Pulse Oximeter From Very Little

Against the backdrop of a global respiratory virus pandemic, it’s likely that more than a few readers have been thinking about pulse oximeters. You may even have looked at one closely and see… Source : A Pulse Oximeter From Very Little