AS3935

AS3935 Lightning Sensor can detect lightning and display the distance and intensity of the lightning without the disturbance of electric arc and noise.
It can be set as indoor or outdoor mode.

DFRobot_AS3934 Library for Arduino

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Provide a library faciltates operations in the as3935 modules.

Table of Contents

• Summary

• Feature

• Installation

• Methods

• Compatibility

• Credits

Summary

Input commands and read data from AS3935 modules

Feature

1. Lightning sensor warns of lightning storm activity within a radius of 40km
   
2. Distance estimation to the head of the storm from overhead to 40km in 15 steps
   
3. Detects both cloud-to-ground and intra-cloud(cloud-to-cloud) flashes
   
4. Embedded man-made disturber rejection algorithm
   
5. Programmable detection levels enable threshold setting for optimal controls
   
6. Three i2c interfaces, switch freely to avoid site conflicts
   

Installation

Download the library ZIP file and unzip it to the Arduino folder of the library.

Methods

#include "DFRobot_AS3935_I2C.h"

/*
 * @brief AS3935 object
 *
 * @param irqx        irq pin
 *        devAddx     i2c address
 */
DFRobot_AS3935_I2C(uint8_t irqx, uint8_t devAddx);

/*
 * @brief AS3935 object
 *
 * @param irqx        irq pin
 */
DFRobot_AS3935_I2C(uint8_t irqx);

/*
 * @brief reset registers to default
 *
 * @return 0 success
 */
int defInit(void);

/*
 * @brief set i2c address
 *
 * @param devAddx     i2c address  
 */
void setI2CAddress(uint8_t devAddx);

/*
 * @brief manual calibration
 * 
 * @param capacitance    capacitance
 *        location       location
 *        disturber      disturber
 */
void manualCal(uint8_t capacitance, uint8_t location, uint8_t disturber);

/*
 * @brief view register data
 */
void printAllRegs(void);

/*
 * @brief get interrupt source
 *
 * @return 0    interrupt result not expected
 *         1    lightning caused interrupt
 *         2    disturber detected
 *         3    Noise level too high
 */
uint8_t getInterruptSrc(void);

/*
 * @brief get lightning distance
 * 
 * @return unit kilometer
 */
uint8_t getLightningDistKm(void);

/*
 * @brief get lightning energy intensity
 * 
 * @return lightning energy intensity(0-1000)
 */
uint32_t getStrikeEnergyRaw(void);

/*
 * @brief Set to the outdoor model
 */
void setOutdoors(void);

/*
 * @brief Set to the indoor model
 */
void setIndoors(void);

/*
 * @brief Disturber detection enabled
 */
void disturberEn(void);

/*
 * @brief Disturber detection disenabled
 */
void disturberDis(void);

/*
 * @brief Sets LCO_FDIV register
 *
 * @param fdiv Set 0, 1, 2 or 3 for ratios of 16, 32, 64 and 128, respectively
 */
void setLcoFdiv(uint8_t fdiv);

/*
 * @brief Set interrupt source
 *
 * @param irqSelect 0 = NONE, 1 = TRCO, 2 = SRCO, 3 = LCO
 */
void setIRQOutputSource(uint8_t irqSelect);

/*
 * @brief Set the noise level
 *
 * @param 0~7,More than 7 will use the default value:2
 */
void setNoiseFloorLvl(uint8_t nfSel);

/*
 * @brief Get the noise level
 *
 * @return 0~7
 */
uint8_t getNoiseFloorLvl(void);

/*
 * @brief Set an anti-interference rating
 *
 * @param 0~7,More than 7 will use the default value:2
 */
void setWatchdogThreshold(uint8_t wdth);

/*
 * @brief read WDTH
 *
 * @return 0~7
 */
uint8_t getWatchdogThreshold(void);

/*
 * @brief Modify SREJ (spike rejection)
 *
 * @param 0~7,More than 7 will use the default value:2
 */
void setSpikeRejection(uint8_t srej);

/*
 * @brief read SREJ (spike rejection)
 *
 * @return 0~7
 */
uint8_t getSpikeRejection(void);

Compatibility

MCU	Work Well	Work Wrong	Untested	Remarks
Arduino uno	√
esp8266	√

Credits

Written by DFRobot_JH, 2018. (Welcome to our website)