Quantity   Component name
1 × Particle Argon or Xenon or other Featherwing compatible board
1 × Custom PCB or wire up your own
1 × Stacking Headers for microcontroller, optional
2 × PC817 Optocouplers
4 × 1kOhm Resistors
4 × Screw Terminals
8 × M3x7 Screws for enclosure and lid
1 × 3D-Printed Components Enclosure & Enclosure Lid