Hello,
I want to plug 2 shields on an arduino mega:
The relay shield will be on the top.
I want to use I/O pins too.
My question is: Which pins are not used by ethrenet and relay shields. I want to know which pins will be free for my other basic I/O
Thanks
The information is in the links you posted....
Informations i have read are not very clear
For example i can read that pin 4 is connected to relay 1 on relay shield.
And this pin seems to select sd card on ethernet shield...
Do you think this can be a problem, even if i do not use relay 1 ?
Thanks
testpresta2:
For example i can read that pin 4 is connected to relay 1 on relay shield.
And this pin seems to select sd card on ethernet shield...
Do you think this can be a problem, even if i do not use relay 1 ?
Thanks
"pin 10 is used to select the W5500 and pin 4 for the SD card. These pins cannot be used for general I/O. "
So yes this will be a problem. If you would enable pin 4 for the sd card, then the relay will toggle.
Okay thanks that does not matter i wont plug anything on this relay and i do not want to work with sd card.
Do you think there might be other problems like this ?
What are the pins the relay will use and what are the pins the ethernet shield will use?
I want to use Relay 2 (i need only one relay) and i want to work with Ethernet.
I want to get a list of all I/O i can use (Analog, pwm, etc)
Thanks
testpresta2:
I want to use Relay 2 (i need only one relay) and i want to work with Ethernet.
I want to get a list of all I/O i can use (Analog, pwm, etc)
Thanks
If you refuse to read the pages you posted and if you refuse to answer the question I posted then I can't be bothered to help you further.