I built myself a tiny #wifi #modem for the #commodore64 . It uses an #esp8266 to emulate an #hayes modem using the #Zimodem firmware.
I made a couple of changes to the design found online, namely added a capacitor on the power rail (because the Commodore provides 100mAh but the ESP can have a higher transients up to 200mAh) and this one: https://www.valoroso.it/modifica-al-modem-wifi-per-commodore-64/
Now going to double-check every connection with the tester before trying it on the Commodore.

#commodore #c64