Archive for 23 Sep 2011

The French parott box

From the French news paper La Croix, today “The Parrot company has become known to the general public, a year ago, after releasing a little helicopter named AR Drone which is remotely controlled by mobile phones. “We’ve already sold 200 000 in the world,” says the director Henri Seydoux. A great success for Parrot, a […]

Relays (Part 1)

Part 1 Relays may look outdated in the world of microprocessors: they are big, greedy (in mA) and slow. However, some of their properties make them unavoidable still, when comes the question of: galvanic isolation and requirement for fully floating contacts. Driving relays is no big deal as long as we care about the fit […]