OLED128 and EtherMega

128x128 pixel 1.5" full colour OLED display with MicroSD card slot. [Product page]
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wehix
Posts: 2
Joined: Wed Aug 07, 2019 10:30 am

OLED128 and EtherMega

Post by wehix » Wed Aug 07, 2019 10:38 am

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.

wehix
Posts: 2
Joined: Wed Aug 07, 2019 10:30 am

Re: OLED128 and EtherMega

Post by wehix » Mon Aug 12, 2019 2:03 pm

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

Brissieboy
Posts: 172
Joined: Fri Sep 20, 2013 7:25 am

Re: OLED128 and EtherMega

Post by Brissieboy » Mon Aug 12, 2019 11:53 pm

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.

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