Quantity   Component name
1 × PCB Board Custom arduino shield being designed
5 × 220 Ohm 1/4 W Resistor https://www.digikey.ca/en/products/detail/stackpole-electronics-inc/CFM14JA220R/9770147
1 × Arduino Uno Headers https://www.digikey.ca/en/products/detail/sparkfun-electronics/PRT-11417/6161755
5 × 0.3 A AC Relays https://www.digikey.ca/en/products/detail/panasonic-electric-works/AQH0223/4757799
6 × 2 Position Screw Terminals https://www.digikey.ca/en/products/detail/te-connectivity-amp-connectors/284391-2/1827021
1 × Arduino Uno The microcontroller itself