Just because a microcontroller doesn’t have a dedicated video peripheral doesn’t mean it cannot output a video signal. This is demonstrated once again, this time on the ESP32 by [aquaticus ...

The gauges run on the ESP32 platform, chosen for its WiFi hardware and its ease of use with the Arduino platform. This makes programming a snap, and interfacing to a smartphone easy.

T he ESP32 is a fantastic little microcontroller with a world of possibilities. Its specifications may appear modest, but its capabilities enable it to power all kinds of devices.