sistem 4dgen4-ESP32 - IoT Integrated Displays Multiple hardware and software options, IoT connectivity, easy UI development. Multiple display sizes The 4D Systems gen4-ESP32 product offers eht display sizes ranging from 2.4″ to 9.0″,To play 4D, select a four-dit number from 0000 to 9999. The minimum cost is $1, inclusive of GST. Draws take place every Wednesday, Saturday and Sunday at 6.30pm. 23 sets of