Quantity   Component name
1 × ESP8266 Huzzah (https://www.adafruit.com/product/2471) Our control board that drives the steppers and connects them to Wifi
1 × 5V 4A Power Supply (https://www.adafruit.com/product/1466) Providing plenty of power for the motors and controller
2 × ULN2003 Stepper Motor and Driver I got these from Jaycar Electronics a while ago, they're pretty common