EnOcean adds secure data link to energy harvester switch
EnOcean has designed its first energy harvesting switch module integrating rolling code which offers data encryption for secure wireless communications.
The self-powered switch module works by creating a 16 bit rolling code for each wireless telegram. The telegram header, telegram data and current rolling code in turn form the basis for generating a 24 bit message authentication code (MAC).
The receiving system can use this code to check the authenticity of the data package.
The module’s energy harvesting converter generates enough energy from one button press to enable the module to send at least two redundant wireless telegrams.
The PTM 215 module is suitable for use with flat wireless switches with one or two rockers and manual switches with up to four buttons. This allows OEMs to manufacture switches for dimmers or blind management, for example.
The PTM 215 complies with the wireless standard ISO/IEC 14543-3-10 and is available for the 868 MHz frequency band.
“Machine-to-machine (M2M) communication and smart home systems connect more and more devices to each other. Exchanging personal or business data within these solutions requires a secure data transmission to prevent unauthorised access,” said Frank Schmidt, chief technology officer, EnOcean.
In addition, EnOcean has expanded its DolphinAPI function library with new data decryption and encryption functions to support the integration of security features in existing OEM Dolphin-based products.
EnOcean will demonstrate the new module at the following partner booths: Future Electronics (hall A4, booth 259) and Farnell (hall A5, booth 558 and 559).