Instead of messing with the wiring, [Marco] took the non-invasive approach and is using a DIY coil to detect the magnetic field of the espresso machine’s pump and start a shot timer. An LM358 ...
showed us the step-by-step guide to making "The God Shot" – the perfect shot of strong and tasty espresso. Produced by Matthew Stuart. Follow BI Video: On YouTube More from Lifestyle Allie Caran ...