To be correct further about 1) i said in text you could attempt that trying to make sure you deal with it for at least 100-500ms or some time period that will surely blow a fuse, so can be underrated. But still like probably a power device in a pakage of at least to-220, and a hefty heatsink that will make sure the junction temperature doesnt reach 175 sooner than the ~100-500ms or that certain time period. To ensure the fuse will blow first, before the power device will fail. Still as big as an electronic fuse for that rating, not much different, except it doesnt imply a junction drop, thats only real difference between clamp + series fuse or electronic fuse which is say in its simplest a low side mosfet with a gate controlled so that can raise faster than its drain raises compared to sink.
But thats still big, and again not enough place on the board. And to do something like that, i would rather do it at board's power input, (like i did with mine), rather than making it further in the board. After all, probably more boards fried because of reverse voltage at input than boards fried coz of thermistors shorting to v+.
And just to clarify even further, i am all in for protection. And all in for extra features. Actually I did already protected my endstop pins with diodes, because of how old enstops were - coz i think mixups can happen. So again im all in for that. But on thermistors adc pins, nothing i could think to help them. Its adc feed to its own logic voltage so no 5v worries. And in case of that short to psu, wont help either. Its perhaps not impossible to protect those adc pins from 12v full psu power, could be done, perhaps not on the shield itself but nothing is impossible, but however i think its well over the hand - too much trouble for its worh. At least for me. Ofc anybody else can differ, and actually should, i think thats the beauty of things here.
I will end with first thing i said: sry to "defuse" you guys about that. And i will take my leave of absence now.
But thats still big, and again not enough place on the board. And to do something like that, i would rather do it at board's power input, (like i did with mine), rather than making it further in the board. After all, probably more boards fried because of reverse voltage at input than boards fried coz of thermistors shorting to v+.
And just to clarify even further, i am all in for protection. And all in for extra features. Actually I did already protected my endstop pins with diodes, because of how old enstops were - coz i think mixups can happen. So again im all in for that. But on thermistors adc pins, nothing i could think to help them. Its adc feed to its own logic voltage so no 5v worries. And in case of that short to psu, wont help either. Its perhaps not impossible to protect those adc pins from 12v full psu power, could be done, perhaps not on the shield itself but nothing is impossible, but however i think its well over the hand - too much trouble for its worh. At least for me. Ofc anybody else can differ, and actually should, i think thats the beauty of things here.
I will end with first thing i said: sry to "defuse" you guys about that. And i will take my leave of absence now.
