SLCD43 does not support WinCE 5.0 running on this display controller. Our SLCD43 does support RS485 via an external RS232 to RS485 converter. This type of adapter automatically enables the RS485 transmitter when the RS232 transmit data is active. It supports either half duplex or full duplex RS485. Our SLCD43 can be controlled by a PC or a microprocessor using a physical serial connection support CMOS/TTL logic levels. We also have the ability to load macros so applications can reside on the device with minimal external control (via commands). Find your display module, then look in Documents to download our software and hardware manuals for further information.