keep in mind AN552 refers to ancient technology that has no esd protection of any kind [like esd diodes], with contemporary chips i would expect no trouble either.
Ther only way high current may damage the input pin is by inducing that current from an external source. I do not know how is your settup exctly, but if you do have long wires or nearby high voltage...
I have been playing with MIBAM from Darrel Taylor and it works perfectly.
However, i was trying to get the cyclon effect at one point and a full fade-in or fade-out of all the same LEDs...
Re: Pull down button on Port B
keep in mind AN552 refers to ancient technology that has no esd protection of any kind [like esd diodes], with contemporary chips i would expect no trouble either.
richard - 23rd January 2026, 22:43