Quantity   Component name
1 × ESP8266 4MByte (I'm using an WeMos D1-MINI)
1 × 74HC595 Electronic Components / Misc. Electronic Components
8 × 2n3904 or 2n2222 NPN transisitors Drive the relays
8 × 10k Resistor
8 × Relays
1 × 24VAC transformer
1 × DC/DC Step Down converter 35v to 3.3v
1 × ST1306 OLED
1 × PCF8563 or DS1307 module (optional)