Smart Switch Switch Module (FL-S124-V1.0)
Smart Switch

Available from:

Install method:
USB to Serial

GPIO #Component
GPIO00 User
GPIO01 User
GPIO02 User
GPIO03 User
GPIO04 Button 1
GPIO05 Relay 1
GPIO09 User
GPIO10 User
GPIO12 User
GPIO13 Led_i 1
GPIO14 User
GPIO15 User
GPIO16 User
GPIO17 User

All pins except reset should be accessible via the solder header for the ESP8266 daughter board. https://imgur.com/a/aS6NBmc