I2C Display and Ethernet Shield

Projects Programming
1

Hello.

I have read a lot of articles but found no real solution.

I have a working MQTT sketch that should display an output on an I2C LED Display using nano ethernet shield.

The problem is with the LED initialised...the Ethernet stops working...Disable the LCD and the MQTT side works flawlessly.

So my question is I am guessing the Ethernet shield is using ports 4 and 5...But I'm lost.

Any suggestions welcome. Ideally both working together. The reason for using i2C for the LCD display was to limit the number of connections.

Thanks!

2

Welcome!
Links to the products used, and probably posting your code attempt, in code tags, would be a bare minimum for any intelligible answers.
For illumination,

1 Like
3

Thanks for the response.

Below is kit list I am away from the desk at moment.

Arduino Nano
https://amzn.eu/d/9QWyreo Ethernet Shield
https://amzn.eu/d/6X8KkCT LCD Screen

4

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