portable

Portable drawing desk

Portable drawing desk

A reader sends word of Matt Reidsma’s excellent Studio2Go portable drawing studio – I needed a way to make my drawing desk portable, so that I could easily work on my strip while on vacation, and so I could easily relocate anywhere in the house when I needed to. My solution was to modify this […]

Compact standalone ECG

Compact standalone ECG

This ultra-compact electrocardiogram device was made using an ARM training/development unit – It is a STM32 Primer with two copper foils placed on each side of the front circle. These two metal foils are the ECG electrodes. User can place his/her both thumbs on the copper foil to start the operation. The ECG trace is […]