Amazon.com: BenQ WXGA LED Business Projector LW500ST, DLP, Full HD, 2000lm, Short Throw, 20000:1 High Contrast Ratio, Dual HDMI Ports, Auto Keystone Correction, Installation-Friendly, SmartEco Technology : Everything Else
MX525A DLP 3D PROJ 3300L WXGA 13000:1 HDMI DSUB USB RS232 IR RCVR - Walmart.com
BenQ FAQ] Projector_How to control the projector with RS 232 commands - YouTube