[chbot] Arduino links

[Peter Harris]

As requested.
Mega 2560  acrylic case:
https://www.aliexpress.com/item/1PCS-Enclosure-Transparent-Gloss-Acrylic-Box-Compatible-for-arduino-Mega-2560-R3-Case/32792406604.html?spm=a2g0s.9042311.0.0.27424c4dozQkl3

Nano breakout board with screw terminals:
https://www.aliexpress.com/item/5Pcs-Standard-Terminal-Adapter-Board-For-Arduino-Nano-3-0-V3-0-AVR-ATMEGA328P-ATMEGA328P-AU/32876664661.html?spm=a2g0s.9042311.0.0.27424c4dozQkl3

Nano Ethernet shield:
https://www.aliexpress.com/item/Mini-ENC28J60-Webserver-module-Ethernet-Shield-board-for-for-Ar-Nano-v3-0/1859123003.html?spm=a2g0s.9042311.0.0.27424c4dG5nXWk

Yes these use the ENC28J60 . They work fine but consume lots of memory. I
suspect the Arduino has to do work that the more expensive W5100 does
onboard.

The only code change required is to replace:
#include <Ethernet.h>
with
#include <UIPEthernet.h> // https://github.com/ntruchsess/arduino_uip

When I looked into this ~8 years ago there were a number of libraries to
run the ENC28J6, UIPEthernet was the just first one I downloaded that
worked out of the box. Things have doubtless changed in the interim, I
would be interested to hear your library choice.

  P
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