Based on EnOcean's innovative Dolphin system architecture, all wireless modules (868 MHz) of EDK 300 can be programmed for custom applications through the API interface. The new STM 300 scavenger transceiver is excellent for implementing energy-autonomous applications to sense temperature, light or air quality, for example. The TCM 300 and TCM 320 transceivers on the other hand are best suited for use in line-powered components such as flush-mounted actuators, repeaters or gateways.