Freetronics Forum

Hi, I’ve just received a Freetronics EtherMega and OLED128 display.
With the OLED running the ethernet port port will not function. Unplugging the display the Ethernet port starts working again.
I have updated the OLED library with the latest from the Freetronics github page, to no avail.
I have tried using Jon’s Superhouse switch controller code with these and a basic version using just Ethernet and the OLED, but is still does not work. They appear to be incompatible with each other.

Any help much appreciated.

HI all,

Finally found the reason my OLED and Ethernet wouldn't work together. It appears USB does not provide enough power to run both. Just discovered a plug pack into the DC jack solved my Ethernet issue.

Cheers, Bill

There are quite a few posts on this forum warning about just that problem.
You should not rely on USB power to run anything other than the basic Arduino.
Always power your 'extras' from a reliable source.