An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators
Why do you think that https://github.com/martin-ger/esp_slip_router is a good alternative to RetroWiFiModem
An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators
Why do you think that https://github.com/martin-ger/esp_slip_router is a good alternative to RetroWiFiModem