Computing stuff tied to the physical world


Using a crystal

In AVR, Hardware on Mar 14, 2009 at 00:01

For the JeeHub, I wanted better clock stability than the 0.5% provided by a ceramic resonator, so I mounted a crystal instead:

Crystal mounting

This needs 2 extra 20 pF capacitors to ground, which I mounted on the other side as SMDs:

SMD 20 pF capacitors

A bit of solder and a short wire to the ground pin did the trick. Wow, even those 1206 components are tiny…