Morgan created this remote for a Ricoh digital camera using an ESP32s:
The Ricoh GR II has a remote interface. But like most modern cameras the interface is terrible. It’s a WiFi Access Point that uses a web app. And because most modern phones are terrible, this means you have to juggle between WiFi that doesn’t provide an internet connection and a web app that kinda requires it. The Ricmohte uses the ESP32s WiFi to connect to the camera and issue commands.
There is a Ricmohte demo on YouTube: