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Topic: Which boards do auto-reset when opening "Serial monitor" and which not? (Read 186 times) previous topic - next topic

Osqui

I know UNO does and Leonardo didn't, but I don't know what is the behaviour of the others (by "others" I mean only the boards that nowadays appears in https://www.arduino.cc/en/Main/Products).

Thanks a lot!!

Qdeathstar

if you put a capacitor between ground and reset, you can prevent this behavior on all Arduino boards.

the mega, however, does reset without the capacitor

DrAzzy

Anything that doesn't have usb on the chip does that - it's needed to program the chip (unless you want to have to hit reset while uploading - but you get a very narrow window for that, nobody likes doing it). But as noted above, it's easy to disable with a cap from reset to ground. 10uf is commonly used, but the exact value isn't critical.
ATtiny core for 841+1634+828 and x4/x5/x61/x7/x8 series Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny 841/1634/828/88/861/167 breakouts, mosfets, touch sensors and prototyping board in my store http://tindie.com/stores/DrAzzy

Paul__B

The proper way to do it is to break the "Reset-En" link and solder the pins to it for an easily removable jumper - or a miniature pushbutton.

DrAzzy

The proper way to do it is to break the "Reset-En" link and solder the pins to it for an easily removable jumper - or a miniature pushbutton.

Would have been nice if they'd put holes to put pin header in there!
ATtiny core for 841+1634+828 and x4/x5/x61/x7/x8 series Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny 841/1634/828/88/861/167 breakouts, mosfets, touch sensors and prototyping board in my store http://tindie.com/stores/DrAzzy

Paul__B

Would have been nice if they'd put holes to put pin header in there!
That does seem to be a blindingly obvious approach, doesn't it?

Osqui


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