That will be in the next version. When designing the "blower" we did not know anything about ports behaving like that. This only happens when You cycle the power - not when You make the reset othervise. You learn something new every day if You have the patience to listen ;)



Let me explain:

The circuit is really simple and is made out of widely (very widely in fact) available components. Sample schematic here

The tolerances are not tight and therefore the circuit suits well on applications that operate on high or low temperatures. Similar features (temperature range) is available on sohisticated circuits but the price is from a different planet.

You know exactly what this circuit is doing and what it is not doing.

You may notice that the circuit has hysteresis. The capacitor is there just to filter out any spikes that might trigger unwanted resets. I have had no trouble with this circuit. The sample is the console for antenna tuner. The antenna tuner sitting on top of the mast has the actual controller which receives EMI enough - there is a 2 kW transmission signal nearby ... I fried a few Atmels until I figured out how the EMI protection should really be done. But the reset has never given any problems.

It is not fancy nor it is any special - it just works.