BenQ TH670 DLP Projector – 3000 Lumens Full HD D-Sub LAN HDMI USB RS232 RCA IR Receiver – Star Light Supplies Kuwait | No 1 online portal for Office Supplies and Stationery in Kuwait
BenQ EH600 4K UHD 1920 x 1200 Wireless Meeting Room Projector 3,500 Lumens 2W Speaker HDMI D-Sub USB RS232 – Standard Projectors
GitHub - nicolaus-hee/esp8266-benq-rs232-mqtt: Control a BenQ TH530 projector via its RS232 interface with an ESP8266, MQTT and openHAB.