Correspondence to Dr Pablo Garcia-Pavia, Department of Cardiology, Hospital Universitario Puerta de Hierro Manuel de Falla, Majadahonda, Madrid, 28222, Spain; pablogpavia{at}yahoo.es To understand the ...

If you want to improve the reliability of your electronics, just cover them in silicone or epoxy. Potting, as this technique is called, protects your project from impact and loose wires, but most ...