Quantity   Component name
1 × ESP32 (I used a DOIT ESP32 DevKit V1)
1 × Alfa-Zeta 7x7 FLIPDOTS display
1 × MAX485 based RS485 serial tranciever (for communication with display)
1 × DC-DC Buck converter (for stepping down 24v power supply needed for display to 3.3v for logic)
1 × 24v 1.5A power supply (although you could get away with much less)