ESP32 + drv8833 motor driver The esp32 connects to hotspot as STA, it can also be connected to as AP. It shows the IP in the captive portal (WiFi login pop-up page), just hold and click open to the control UI, no need to figure out and hand-type the IP. On github: https://github.com/CCCanyon/ESP32_WiFi_RC_tank
Model is 3d printed, available on printables though no guarantee on documentation: