# file DFRobot_AS3935_detailed.py # # SEN0290 Lightning Sensor # This sensor can detect lightning and display the distance and intensity of the lightning within 40 km # It can be set as indoor or outdoor mode. # The module has three I2C, these addresses are: # AS3935_ADD1 0x01 A0 = 1 A1 = 0 # AS3935_ADD2 0x02 A0 = 0 A1 = 1 # AS3935_ADD3 0x03 A0 = 1 A1 = 1 # # # Copyright [DFRobot](http://www.dfrobot.com), 2018 # Copyright GNU Lesser General Public License # # version V1.0 # date 2018-11-28 import sys sys.path.append('../') import time from DFRobot_AS3935_Lib import DFRobot_AS3935 import RPi.GPIO as GPIO from datetime import datetime #I2C address AS3935_I2C_ADDR1 = 0X01 AS3935_I2C_ADDR2 = 0X02 AS3935_I2C_ADDR3 = 0X03 #Antenna tuning capcitance (must be integer multiple of 8, 8 - 120 pf) AS3935_CAPACITANCE = 96 IRQ_PIN = 7 GPIO.setmode(GPIO.BOARD) sensor = DFRobot_AS3935(AS3935_I2C_ADDR3, bus = 1) if (sensor.reset()): print("init sensor sucess.") else: print("init sensor fail") while True: pass #Configure sensor sensor.powerUp() #set indoors or outdoors models sensor.setIndoors() #sensor.setOutdoors() #disturber detection sensor.disturberEn() #sensor.disturberDis() sensor.setIrqOutputSource(0) time.sleep(0.5) #set capacitance sensor.setTuningCaps(AS3935_CAPACITANCE) # Connect the IRQ and GND pin to the oscilloscope. # uncomment the following sentences to fine tune the antenna for better performance. # This will dispaly the antenna's resonance frequency/16 on IRQ pin (The resonance frequency will be divided by 16 on this pin) # Tuning AS3935_CAPACITANCE to make the frequency within 500/16 kHz plus 3.5% to 500/16 kHz minus 3.5% # # sensor.setLcoFdiv(0) # sensor.setIrqOutputSource(3) #Set the noise level,use a default value greater than 7 sensor.setNoiseFloorLv1(2) #noiseLv = sensor.getNoiseFloorLv1() #used to modify WDTH,alues should only be between 0x00 and 0x0F (0 and 7) sensor.setWatchdogThreshold(2) #wtdgThreshold = sensor.getWatchdogThreshold() #used to modify SREJ (spike rejection),values should only be between 0x00 and 0x0F (0 and 7) sensor.setSpikeRejection(2) #spikeRejection = sensor.getSpikeRejection() #view all register data #sensor.printAllRegs() def callback_handle(channel): global sensor time.sleep(0.005) intSrc = sensor.getInterruptSrc() if intSrc == 1: lightningDistKm = sensor.getLightningDistKm() print('Lightning occurs!') print('Distance: %dkm'%lightningDistKm) lightningEnergyVal = sensor.getStrikeEnergyRaw() print('Intensity: %d '%lightningEnergyVal) elif intSrc == 2: print('Disturber discovered!') elif intSrc == 3: print('Noise level too high!') else: pass #Set to input mode GPIO.setup(IRQ_PIN, GPIO.IN) #Set the interrupt pin, the interrupt function, rising along the trigger GPIO.add_event_detect(IRQ_PIN, GPIO.RISING, callback = callback_handle) print("start lightning detect.") while True: time.sleep(1.0)