The RC-S2LP-XXX-EK board is based on RC-S2LP-XXX RadioControlli’s module. This module is based on STMicroelectronics chip (S2-LP) that is a sub-1 GHz ultra-low power low data-rate transceiver, suitable for ISM bands and Wireless M-Bus.
The Evaluation board can be used instead of those provided by the chip manufacter (www.st.com) denominated STEVAL-FKIXXXV2.