Quantity   Component name
2 × esp32 module One for the keyboard, one for the hex pad. The 6502 simulation runs on either one, the second is just an optional peripheral
1 × ILI9488 TFT display module ubiqitous on aliexpress
20 × 1K resistors Around 20 are used in the various modules
2 × 3461BS segment LEDs Long description:0.36 inch Common Anode 4-digit 7-segment LED with decimal point
90 × Tact switches standard 2-pin footprint, mouse button switches recommended
2 × Optional: LiPo battery with mini charger module & 5V converter fits underneath the keyboard and/or hex keypad PCBs (just...)