Energy harvesting demo kit

6 March 2013 Design Automation

STMicroelectronics has released an easy-access development platform for its contactless memories with unique energy harvesting capabilities. The M24LR Discovery Kit contains everything engineers need to start designing battery-free electronic applications that can exchange data with ISO15693-compatible NFC-enabled smartphones or RFID (radio-frequency identification) reader-writers.

The turnkey development platform helps accelerate the creation and integration of energy-autonomous data collection, asset tracking or diagnostics capabilities in a wide variety of applications, including phone and tablet accessories, computer peripherals, electronic shelf labels, home appliances, industrial automation, sensing and monitoring systems, and personal healthcare products.

With its combination of industry-standard serial-bus (I²C) and contactless RF interfaces, ST’s M24LR EEPROM memory has the ability to communicate with the host system ‘over the wire’ or ‘over the air.’ Furthermore, the M24LR’s RF interface can convert ambient radio waves emitted by RFID reader-writers and NFC phones or tablets into energy to power its circuits and enable complete battery-free operation.

The kit consists of two boards: an RF transceiver board with a 13,56 MHz multi-protocol RFID/NFC transceiver (CR95HF) driven by an STM32 32-bit microcontroller, which powers and communicates wirelessly with a batteryless board that includes ST’s dual-interface EEPROM memory IC (M24LR), an ultra-low-power 8-bit microcontroller (STM8L) and a temperature sensor (STTS75).

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