# Send the string to the PIC for display.
self.pi.i2c_write_i2c_block_data(self._h, 0, value)
if __name__ == "__main__":
import time
import pigpio
import Si7021
pi = pigpio.pi()
if not pi.connected:
exit(0)
# Sensor initialization
s = Si7021.sensor(pi)
s.set_resolution(0)
print("Sensor resolution set to {:x}".format(s.get_resolution()))
print(
"Sensor hardware revision={:x} with ID1={:08x} and ID2={:08x}".format(
s.firmware_revision(), s.electronic_id_1(), s.electronic_id_2()))
# LCD initialization
led = PIC_LTC4627JR(pi)
try:
print("Press Control-C to exit program.")
while True:
celsius = s.temperature()
def initialise():
global dir_path,Ts1, Ms1, Ts2, Ms2, speedM, Ti, HuAir, \
TAir, offset, facta, factb, maxspeed, minspeed,\
Sm, db,cursor, interval, limitmin, limitmax, bus,\
adc, adc2, GAIN, configfile, config, max31,\
s, instrument, Tm, range_error
#default values
Ts1=0 #temperature sensor1
Ms1=0 #moisture sensor1
Ts2=0 #temperature sensor2
Ms2=0 #moisture sensor2
speedM=25 #speedmotor
Ti=datetime.now() #time
Sm=15 #Set moisture
HuAir=0 #Humidity air
TAir=0 #temperature air
interval=2
limitmin = 17
limitmax=13
Tm=datetime.now() #time for emails
range_error=False
#Parameters:
offset=0 #offset
facta=0 #facteur of the formula a
factb=0 #facteur of the formula b
maxspeed=50
minspeed=0
#initialise db
inidb()
#intialise bus for temperature and humidity reading
#bus = smbus2.SMBus(1)
#intialise ADC
adc = Adafruit_ADS1x15.ADS1115()
adc = Adafruit_ADS1x15.ADS1115(address=0x4A, busnum=1)
adc2 = Adafruit_ADS1x15.ADS1115()
adc2 = Adafruit_ADS1x15.ADS1115(address=0x48, busnum=1)
GAIN = 2/3
#config file
configfile="/var/www/html/configfolder/config.ini"
config = configparser.ConfigParser()
#Si7021:
pi = pigpio.pi()
s = Si7021.sensor(pi)
#minimalbus
instrument = minimalmodbus.Instrument('/dev/ttyUSB0', 1) # port name, slave address (in decimal)
instrument.serial.port # this is the serial port name
instrument.serial.baudrate = 19200 # Baud
instrument.serial.bytesize = 8
instrument.serial.parity = minimalmodbus.serial.PARITY_NONE
instrument.serial.stopbits = 1
instrument.serial.timeout = 10 # seconds
instrument.address=1 # this is the slave address number
instrument.mode = minimalmodbus.MODE_RTU # rtu or ascii mode
#Set Registers
instrument.write_register(8501, 0x0080, 0) #reset fault
if record_only==True:
print("Setting to Manual")
instrument.write_register(8413, 0x0001, 0) #Manual set Fr1 to AI1
elif record_only==False:
print("Setting to Controlled")
instrument.write_register(8413, 0x00A4, 0) #Automatic. set Fr1 to ModBus
instrument.write_register(8501, 0x0006, 0) # set it read to switch on
instrument.write_register(8501, 0x0007, 0) # set it switch on
instrument.write_register(8501, 0x000f, 0) # start
instrument.write_register(8502, 0, 0) # put speed at 0Hz