Native Home Assistant control of an XGIMI Titan Noir / Titan Noir Max projector over its USB-to-RS232 serial interface, using a cheap ESP32. The Titan Noir has no shipping IP control, but serial works — including power-on from standby, which BLE and CEC can't do dependably.
Before you invest time in this: it's a tinkerer's project (an ESP32, a USB-serial cable, a few jumper wires, ESPHome) — and there's one projector quirk that trips everyone up. Read The catch below first. Depending on your