For his latest project, [XTronical] has recreated the classic displays from Dr McCoy’s sickbay with an Arduino Nano and a 2.8 inch LCD display ... using a MAX30100 pulse oximeter module and ...

It’s called Ketosense, and it will tell you how well your keto diet is doing by just having you blow into a sensor. [Jens]’ device consists of an Arduino, LCD display, and two sensors – one ...