The Wi.M868X-DP-R module is a microcontroller-less version of our popular Wi.232EUR-R module. It offers the same excellent RF performance, yet allows the design engineer to control the radio at the physical level using any microcontroller.

The module is footprint compatible with the DP1203 module from SemTech and can be used as a direct drop in replacement.

The Wi.M868X-DP-R is based on the XEMICS XE1203F transceiver RFIC. After evaluating all of the wireless Ics available, we chose the XE1203F as the heart of our Wi. Series of modules because it has by far the best performance and stability of all chips available today.

The module supports two modes of operation: wide-band and narrow-band. In wide-band mode, the channel width is 600kHz and in narrow-band mode the channel width is 200kHz.The module is configured via a simple SPI style serial interface. Data is transmitted and received using a separate digital serial interface that includes pre-amble and start-of-packet detection.

Maximum transmit power is +15dBm. Maximum receive sensitivity is -112dBm. Receive sensitivity at the maximum baud rate is -103dBm typical. The transmitter draws 53mA typical at +15dBm. The receiver draws 14mA typical.

The Wi.M900X-DP-EVM-R is the 915MHz version.

This EVM can be used like a Wi.232DTS/EUR-EVM-R module in the Wi. evaluation board.