Since our first prototype implementation based on an Arduino and Fonera 2200 hybrid late last year, we've been busy designing an integrated sensor board for Flukso, our community metering application. The board has an ATmega168v microcontroller (uC) at its core and contains sensor debouncing and signal conditioning circuitry. We can connect one analog and up to three digital pulse sensors to the PCB. Power (3.3V) is drawn from the 4-pin UART header of the main router board.
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