Materials

List of materials needed

For the letters

• Letter stickers Amazon
• Photo ID PVC cards Amazon

For the mechanism

• M4 Hex Nuts Amazon
• M4x20mm screws Amazon
• M4x10mm screws Amazon
• M4x10mmx0.5mm Stainless Steel Round Flat Washer for Bolt Screw Amazon

Tools

• ID Card slot punch Amazon
• Xacto knife
• Glue Gun Amazon
• Wire Harness Tape

Electronics

• Raspberry PI 2/3 Amazon
• 12V 28BYJ-48 Stepper Motor + ULN2003 Stepper Motor Drive Test Module Board Amazon
• 12V power source 5W (recommended 0.5W * number of motors) Amazon
• Shift registers
• Jumper Cables Amazon
• Breadboard Amazon