
The LESENSE function block enables autonomous monitoring of up to 16 external sensors in the MCU’s sub-microamp Deep Sleep mode
Able to run independently of the EFM32’s ARM® Cortex™-M3 core, LESENSE can be used to create highly integrated, ultra low power, sensor solutions. Particularly suitable for battery operated systems, the sensor interface is designed to operate with virtually any type of analog sensor control scheme, including capacitive, inductive and resistive types.
Among a variety of uses, LESENSE can be configured to support autonomous capacitive touch pad- and slider based products, and gas and water metering products relying on inductive rotation sensors.
The LESENSE function block will first be made available in Energy Micro’s Tiny Gecko microcontroller family, sampling and in volume during Q1’2011. Pin and software compatible with the bigger Gecko microcontrollers, the Tiny Gecko provides users with a wide range of low power peripheral function blocks, including an 8-channel, 12-bit ADC using 350µA at full resolution and 1Msamples/sec conversion rate, and a low energy UART consuming as little as 150nA, and a new 8x20 segment LCD controller.

