I am working on my final year project and it requires exactly 8 analog pins. 3 for accelerator sensor and 5 for flex sensors.
i tested each sensor individually and they worked fine.
the problem occurred while integrating the two sensors together as A4 gives 0 output and A5 gives 1023 output. i even switched the sensors and the pins but still for these two pins i get the same output.
i disconnected everything and tried A4 alone i got the correct result.
i did the same thing with A5 and i got the correct result.
the problem occurs only in A4 and A5 when i connect them witht the other analog inputs.
i did some searching and i found that A4 is SDA and A5 is SCK.
my question : what is exactly happening and why? and how to overcome this problem as i really have to use nano and the 8 analog pins.
This drawing is to show you the analog pins connection, that's why I forgot to connect the ground but in my circuit I'm connecting both grounds one with flex sensors and the other one with the accelerator sensor.
Hey there,
I tried the same connection with Arduino Mega2560 (Analog pins from A0 to A7) and I got the output.
So, I think the problem with Arduino Nano only not the connection itself.
What are the possible solutions for my problem as I have to use Arduino Nano ?
