In this post we are reviewing the ESP-01 Wi-Fi Relay Module. ... The RST pin is the reset pin, pulled High by default. When pulled down to ground (Low) momentarily it will reset the ESP chip. ...

The WiFi232 is made by [Paul Rickards], and given the last few years of WiFi-enabled retrocomputing projects, it’s exactly what you would expect. Onboard the WiFi232 is an ESP8266 module ...

This cable connects the Arduino to the ESP8266 WiFi module. The TX and RX lines are then tapped into. Each wire is routed to the RX pin of two different serial to USB adapters.