@kkarhan It would be a great idea! But Ethernet is tricky. The closest thing made used the Lantronix XPort. It worked Ok, had its own AT command set (a little obtuse to learn), but it was expensive. And not really customizable. Its possible to put a uC in front of it but that would increase the costs more. So I just shelved it.

https://www.lantronix.com/products/xport-direct/

@paulrickards I assume something based on the @Raspberry_Pi #PiPico / #RP2040 with a matching #Ethernet-HAT would be able to to it.

Espechally since that #uC is easy to obtain and relatively cheap (compared to a #Pi0 / #Pi0W which were used for the #DreamPi #Dialup adaptor and are still not widely available at #MSRP)...

The tricky part would be #Firmware, not #Hardware....

#Wifi232 #Ethernet232 #Modem #RS232