The ATA8520-EK2-E is a SIGFOX extension board for the Xplained Mini/Arduino UNO development kits. It can be used for evaluation of the Atmel ATA8520D SIGFOX compliant transceiver and operates in the European 868MHz ISM band. The kit is “SIGFOX Ready™” and CE certified. The SIGFOX extension kit comes with a fully preprogrammed ATA8520D device including SIGFOX ID and PAC code for registration at the SIGFOX backend. The kit also provide an antenna to be connected to the SMA connector and contain the shield connectors to plug the extension kit to the Xplained Mini/Arduino UNO boards. The Xplained Mini/Arduino UNO development boards are not included in the SIGFOX extension kit and have to be purchased individually. A tool pack with software, hardware documentation and user guide is available on the ATMEL web page.