If you're looking to build a network-connected device with Arduino Nano is the best solution for you!
The Micro ATmega32U4-MU is a tiny microcontroller board based on the ATmega32U4. It has 20 digital input/output pins...
Basic shield's KIT for WeMos D1 mini / mini PRO : Dual Base ProtoShield Button Contact Relay Data Logger Shield
IoT KIT 1 - WeMos D1 mini PRO ESP8266 32Mb flash, with basic shield sets: Dual Base Shield ProtoShield Button Contact Relay Data Logger DHT11 for Arduino IoT kit WiFi projects
Relay Shield for Arduino Uno, 4 relays