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README.md

AS3935-Arduino-Library

AS3935 Franklin Lightning Sensor™ IC by AMS Arduino library for I2C

This is the modification of the library by Raivisr     http://www.rrkb.lv

See his page for detais. This modification changes SPI to I2C communication.

Tested with Arduino 1.0.3 on Arduino Pro Mini.

Short function reference:

void registerWrite(byte reg, byte mask, byte data)

    write to specified register specified data using specified bitmask,     the rest of the register remains intact

byte registerRead(byte reg, byte mask)

    read specified register using specified bitmask and return value aligned     to lsb, i.e. if value to be read is in a middle of register, function     reads register and then aligns lsb of value to lsb of byte

void reset()

    reset all the registers on chip to default values

bool calibrate()

    perform calibration routine, calibrate receiving antenna tank and then     instruct the chip to calibrate both RCOs present on chip

void powerDown()

    put chip into power down mode

void powerUp()

    bring chip out of power down mode and perform RCO calibration

int interruptSource()

    return interrupt source, bitmask, 0b0001 - noise, 0b0100 - disturber,     0b1000 - lightning

void disableDisturbers()

    disable indication of disturbers

void enableDisturbers()

    enable indication of distrubers

int getMinimumLightnings()

    return number of lightnings that need to be detected in 17 minute period     before interrupt is issued

int setMinimumLightnings(int minlightning)

    set number of lightnings that need to be detected in 17 minute period     before interrupt is issued

int lightningDistanceKm()

    return distance to lightning in kilometers, 1 means storm is overhead,     63 means it is too far to reliably calculate distance

void setIndoors()

    load gain preset to operate indoors

void setOutdoors()

    load gain preset to operate outdoors

int getNoiseFloor()

    return noise floor setting - refer to datasheet for meaning and range

int setNoiseFloor(int noisefloor)

    set noise floor setting

int getSpikeRejection()

    return spike rejection value - refer to datasheet for meaning and range

int setSpikeRejection(int srej)

    set spike rejection value

int getWatchdogThreshold()

    return watchdog threshold value - refer to datasheet for meaning and range

int setWatchdogThreshold(int wdth)

    set watchdog threshold value

void clearStats()

    clear internal accumulated lightning statistics

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AS3935 Franklin Lightning Sensor™ IC by AMS Arduino library

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