[Ray] likes to build all sorts of Propeller-based projects, but one of the more interesting items we came across was this DIY ECG. While we have covered other DIY electrocardiograms before, he left the breadboard behind and put together a nicely done PCB for his build. The ECGs design should be pretty familiar to anyone that has seen our ECG coverage in the past. The user places his thumbs on … [Read more...]