Order your pcb design at jlcpcb for $2 (24 hours turnaround time). This is the most complex or detailed soldering I've done so far, the QFN20 package is very small but still not impossible to solder ...

Not many talk about a redundancy power system in your airplane to save it from an unexpected lost of power, leaving the plane ...

A unique gift that plays to his interests will be used and loved long after the half-eaten box of chocolates has gone stale.