Set WiFi network SSID and Password after installation by connecting a device to GRGDO1 hotspot, named Garage Door ABCDEF (where last six characters are unique) and connect a browser to IP address http://192.168.4.1
The GRGDO1 currently uses a USB to UART adapter for flash programing. Otherwise the firmware is preloaded and you can use the captive portal as an option.
The setup process may take as long as a full minute, so please be patient.