visi4dBefore you can use the 4D Systems Smart Display, you need to desn the user interface, and program it. To program the display, you need to connect it directly to the computer with aListed are tools recommended during development: 4D-UPA; gen4-PA; uUSB-PA5 (w gen4-IB if using gen4 and pixxiLCD displays); 4D Programming Cable (w gen4-IB if using gen4