Integrated wireless controller features low power for IoT applications

May 12, 2014 // By Jean-Pierre Joosting
A fully integrated wireless controller suitable for remote, battery powered sensor systems, which can offer current consumption as low as 32 µA is available from LPRS

The low cost, high security easyRadio Integrated Controller (eRIC) offers designers seven power saving modes of operation to ensure maximum battery life of remote sensors. The eRIC transceiver power saving modes provide control of the duty cycle of the receiver so that the ‘ON’ time can be set to 12.5%, 6.25%, 3.1% , 1.56%, 0.78%, 0.39% & 0.2% with corresponding levels of power saving from its “always on” current of 16 mA. The transmitter may then be independently set to the same duty cycle as the receiver or longer as required for transfer of data. Up to 250 Byte data-packets are supported throughout all operating modes and up to 500 Kbs over air data rates are available.

The LPRS eRIC module is now available with operating frequencies for world markets and provides secure over-air transmission with the availability of an AES 128 bit data encryption option. Many other advanced features are available as standard including; received signal strength indicator (RSSI), carrier detect and group ID.

The advanced design of this transceiver uses system-on-chip (SOC) technology removing the need for an external processor. The on-board processor memory is partitioned giving half to the easyRadio configurable settings and communication software and leaving the rest available for design engineers to add their own application code. Code can be written using industry standard tools and a quick to learn API (application programming interface). This partitioned memory design will often eliminate the need for any additional microcontroller, saving cost, space and power.

The eRIC is an exceptional value RF transceiver intended for embedded high-volume applications in the “Smart” or “IoT” arena including; building and lighting control, security, home monitoring and medical products, vehicle and contents monitoring, renewable energy control and remote sensor systems. It has been designed to simplify end product manufacture and is packaged for SMD assembly and measures just 20 x 15 x 5 mm.

The eRIC continues to use the popular and