Designed for ultra-low-power wireless sense and control networks, the Lime CM-08 is a high-performance wireless module targeted at driving the communication part of high-end mesh networks. The unit comes in two versions: the CM-08-CP with an on-board chip antenna, and the CM-08-XT, which can be used with an off-module external antenna. SMD-mounted onto a host PCB, the module communicates in the 2.4 to 2.4835GHz unlicensed ISM band. The 16-channel radio devices support 250kbit/s data rates at a range that extends up to 100m indoors and 1km outdoors in line-of-sight. The 35.5x16.5mm devices leverage three key technologies that enable them to operate in a battery-free environment without cabling. The first is an ultra-low-power wireless-transceiver and sensor-interface design with efficient power-up and power-down modes that dramatically reduce power consumption. Second is an energy-harvesting interface that enables the modules to use power provided by external solar, electromagnetic, and piezo-electric transducers. Third is a mesh technology that enables designers to create extended sensor networks without the need for battery-powered or cabled routing nodes; it is also self-forming and self-healing, making it easy and inexpensive to install. The module's software can be configured to manage the power of different types of energy-harvesting devices.