Hi all,
For my sensor project I would like to give the user the option to hit the Arduino RESET button.
Is it possible to wire up a 2nd reset switch so that it is accessible to the user on the outside of the project box? Is it as simple as keeping the original switch and soldering duplicate wires to a 2nd switch?
Yes, it really is that simple.
You're simply putting another switch in parallel with the one on the board.
Some shields add a reset switch, because with a shield fitted, the one on the Arduino is probably inaccessible
and soldering redundant wires to a 2nd switch?
The wires are not redundant, they are being used for something - resting your arduino.
thanks!
Is it as simple as keeping the original switch and soldering duplicate wires to a 2nd switch?
Actually it can be as simple as wiring your additional reset switch between the Arduino reset and ground pin, no soldering required.
Lefty
Sorry for kicking an old thread but I don't understand this possibility.
Actually it can be as simple as wiring your additional reset switch between the Arduino reset and ground pin, no soldering required.
Lefty
I have a Mega1280 (clone) and am wondering where the reset pin is.
(I know where ground is :))
And should there be a resistor added?
I need this as an emergency stop for a tool.
Thanks,
I need this as an emergency stop for a tool.
You'd probably be better cutting the power using one of those buttons that needs twisting to release.
http://www.expert-electrical.co.uk/Push-Button-LED-Indicator/Momentary-Push-Buttons-None-Illuminated/Emergency-Stop-Push-Button-Twist-Release/prod_810.html
I have a Mega1280 (clone) and am wondering where the reset pin is.
(I know where ground is )
And should there be a resistor added?
I need this as an emergency stop for a tool.
The reset pin is located at the same location as the six pin shield power connector on any arduino shield compatible layout. Pin order is reset, 3.3v, 5v, gnd, gnd, Vin. Reset is also avalible on the ICSP connector, along with a ground pin, if your board has one.
However I agree that an emergency stop switch should be a well labeled, big old red mushroom knob, push to open contacts, power switch that removes the power to the final control element(s), be it motor(s) or whatever.
Lefty
Ok thanks, maybe that's a better idea.
Would you believe I looked at the board for reset and completely missed it???
Have you found it now? Or still looking?
Ok thanks, maybe that's a better idea.
Would you believe I looked at the board for reset and completely missed it???
That has never happened to me, ever. ;D I lie sometimes too.
Oh, and no resistor required, you are just grounding out the on-board pullup resistor wired to the reset pin on the processor chip.
Lefty
Found it after reading the post mentioning it.
thanks,