def __init__(self, name, hostname):
'''
'''
self.name = name
self.hostname = hostname
# topic = 'pump/'+name
# client.message_callback_add(topic,self.on_message)
# # wiringpi.wiringPiSetupGpio()
# # wiringpi.pinMode(PORT,1)
# # wiringpi.digitalWrite(PORT,not data['status'])
# gpio.init()
# gpio.setcfg(port.PA10, gpio.OUTPUT)
i2c.init("/dev/i2c-0") #Initialize module to use /dev/i2c-2
i2c.open(0x48) #The slave device address is 0x55
#If we want to write to some register
#i2c.write([0xAA, 0x20]) #Write 0x20 to register 0xAA
#i2c.write([0xAA, 0x10, 0x11, 0x12]) #Do continuous write with start address 0xAA
#If we want to do write and read
data = [0x84,0xc2]
i2c.write([0x01, 0xc2, 0x85 ]) #Set address at 0xAA register
i2c.write([0x00])
threading.Timer(9, publish).start()
threading.Timer)
def __init__(self, address=BME280_I2CADDR):
i2c.init("/dev/i2c-0")
self.address = address
# Read calibration values
self.dig_t1 = self.read_word(BME280_DIG_T1) # Unsigned
self.dig_t2 = self.read_word_sign(BME280_DIG_T2)
self.dig_t3 = self.read_word_sign(BME280_DIG_T3)
self.dig_p1 = self.read_word(BME280_DIG_P1) # Unsigned
self.dig_p2 = self.read_word_sign(BME280_DIG_P2)
self.dig_p3 = self.read_word_sign(BME280_DIG_P3)
self.dig_p4 = self.read_word_sign(BME280_DIG_P4)
self.dig_p5 = self.read_word_sign(BME280_DIG_P5)
self.dig_p6 = self.read_word_sign(BME280_DIG_P6)
self.dig_p7 = self.read_word_sign(BME280_DIG_P7)
self.dig_p8 = self.read_word_sign(BME280_DIG_P8)
self.dig_p9 = self.read_word_sign(BME280_DIG_P9)
self.dig_h1 = self.read_byte(BME280_DIG_H1) # unsigned char
self.dig_h2 = self.read_word_sign(BME280_DIG_H2)
self.dig_h3 = self.read_byte(BME280_DIG_H3) # unsigned char
self.dig_h4 = (self.read_byte(BME280_DIG_H4) << 24) >> 20
self.dig_h4 = self.dig_h4 | self.read_byte(BME280_DIG_H4+1) & 0x0F
self.dig_h5 = (self.read_byte(BME280_DIG_H5+1) << 24) >> 20
self.dig_h5 = self.dig_h5 | (self.read_byte(BME280_DIG_H5) >> 4) & 0x0F
self.dig_h6 = self.read_byte(BME280_DIG_H6) # signed char
if self.dig_h6 > 127:
self.dig_h6 = 127-self.dig_h6
# Set Configuration
self.write_byte(BME280_CONFIG, BME280_CONFIG_SET)
self.write_byte(BME280_CONTROL_HUM, BME280_CONTROL_HUM_SET)
self.write_byte(BME280_CONTROL_MEAS, BME280_CONTROL_MEAS_SET)
def __init__(self, bus):
"""Instantiates a I2CBus
Args:
bus: string, path to bus
address: integer, generally 0x58, the address where
mod-io can be found
"""
try:
i2c.init(bus)
except IOError:
raise I2CBusNotConfiguredProperly(
"could not find files for access to I2C bus,"
"you need to load the proper modules")
def __init__(self, bus):
"""Instantiates a I2CBus
Args:
bus: string, path to bus
address: integer, generally 0x58, the address where
mod-io can be found
"""
try:
i2c.init(bus)
except IOError:
raise I2CBusNotConfiguredProperly(
"could not find files for access to I2C bus,"
"you need to load the proper modules")
def lcd_init(DispSet, EntryMode):
i2c.init("/dev/i2c-0")
i2c.open(I2C_ADDR)
delay_ms(20)
nibble(0x30, CMD)
delay_ms(5)
nibble(0x30, CMD)
delay_us(110)
nibble(0x30, CMD)
nibble(0x20, CMD)
write(DispSet, CMD)
write(0x08, CMD)
write(0x01, CMD)
write(0x06, CMD)
write(EntryMode, CMD)
def main():
i2c.init("/dev/i2c-1")
(chip_id, chip_version) = readBmp180Id()
print "Chip ID :", chip_id
print "Version :", chip_version
print
( temperature, pressure ) = readBmp180()
print
print "Temperature : ", temperature, "C"
print "Pressure : ", pressure, "mbar"
print
RESULTS = [
[ "Temperature", "Pressure" ],
[ temperature, pressure ]
]
with open('some.csv', 'wb') as f:
writer = csv.writer( f )
writer.writerows( RESULTS )
def ReadADC(Address, channel, ref):
config = 0b1000000111000011
config |= (channel << 12)
config |= (ref << 9)
lectura = 0
aux = 0x80
configH = (config >> 8)
configL = config & 0x00FF
i2c.init("/dev/i2c-0")
i2c.open(Address) #Open ADC I2C
i2c.write([0x01, configH, configL]) #Write to Adddress 1 (config register)
i2c.close()
while (lectura != aux):
i2c.open(Address)
high = i2c.read(2)
i2c.close()
lectura = high[0] & aux
i2c.open(Address)
i2c.write([0x00])
i2c.close()
i2c.open(Address)
read = i2c.read(2)
i2c.close()
value = (read[0] << 8) + read[1]
return value
#Author Kaname Aimu
#Date 01-17-2017
import time
import os
import re
from pyA20 import i2c
#Initialize module to use /dev/i2c-0
# i2c-0 is is the upper i2c port on your orangepi GPIO ports
#Physical:
# 3 - SDA.0
# 5 - SCL.0
i2c.init("/dev/i2c-0")
#the address of PCF8574
i2c.open(0x27)
#i2c 1602 module pin defination
#LEDK is the K pin for LCD background light LED
#PCF8574 LCD1602
#D0 RS
#D1 RW
#D2 E
#D3 LEDK
#D4 D4
#D5 D5
#D6 D6
#D7 D7
def __init__(self, device_address, port):
i2c.init(device_address)
i2c.open(port)
self.state = None
#!/usr/bin/env python
import rospy
import time
from std_msgs.msg import Float64, UInt16, Bool
from pyA20 import i2c
# REGISTERS AND ADRESSES
REG_speed = 0x82 # speed register
ADR_slave = 0x0f # slave device address
#Initialize module to use /dev/i2c-2
i2c.init("/dev/i2c-2")
def get_params():
global ramp_min
global ramp_max
# Get parameters from launch file
ramp_min = rospy.get_param('~ramp_min') if rospy.has_param(
'~ramp_min') else 10
ramp_max = rospy.get_param('~ramp_max') if rospy.has_param(
'~ramp_max') else 100
def print_params():
print(" ----- PARAMETERS -----")
print(" - Ramp min : " + str(ramp_min))
print(" - Ramp max : " + str(ramp_max))
print(" ----------------------")
"""
from pyA20 import i2c
__author__ = "Stefan Mavrodiev"
__copyright__ = "Copyright 2014, Olimex LTD"
__credits__ = ["Stefan Mavrodiev"]
__license__ = "GPL"
__version__ = "2.0"
__maintainer__ = __author__
__email__ = "*****@*****.**"
eeprom_address = 0x50
"""Initialize i2c bus"""
i2c.init("/dev/i2c-1")
i2c.open(eeprom_address)
"""Set address pointer to the first"""
i2c.write([0x00])
print "Dump eeprom:"
print "="*24
print " ",
for i in xrange(16):
print " %x" % i,
print "\t",
for i in xrange(16):
print "%x" % i,
msg = "Could not initialize GPIOs, oven operation will only be simulated!"
log.warning(msg)
gpio_available = False
except RuntimeError:
msg = "Could not load RPi.GPIO library, trying OrangePiZero library"
log.warning(msg)
gpio_available = False
try:
from pyA20.gpio import gpio
from pyA20.gpio import port
from pyA20 import i2c
log.warning("Hello")
i2c.init("/dev/i2c-1") #Initialize module to use /dev/i2c-1
i2c.open(0x68) #The slave device address is 0x68 DS1371
i2c.write([0x04, 0xFF, 0xFF, 0xFF])
#If we want to write to some register
i2c.write([0x07, 0x4F]) #Write 0x0E to register 0x07
# INTCN 1 WDALM 0 AIE 1
#Initialise the GPIO output
gpio.init() #Initialize module. Always called first
# gpio.setcfg(config.gpio_watchdog, gpio.OUTPUT) # Configure the watchdog
gpio.setcfg(config.gpio_cool, gpio.OUTPUT) # Configure the cooling output
gpio.setcfg(config.gpio_reset, gpio.OUTPUT) # Configure Reset as OUTPUT
gpio.output(config.gpio_reset,
gpio.HIGH) # Set the i2c GPIO reset line High
The i2c address can be different, but on this specific board is 0x50.
The text will be big mess if python3 is used.
"""
from pyA20 import i2c
__author__ = "Stefan Mavrodiev"
__copyright__ = "Copyright 2014, Olimex LTD"
__credits__ = ["Stefan Mavrodiev"]
__license__ = "GPL"
__version__ = "2.0"
__maintainer__ = __author__
__email__ = "*****@*****.**"
eeprom_address = 0x28
"""Initialize i2c bus"""
i2c.init("/dev/i2c-1")
i2c.open(eeprom_address)
"""while loop between 0 and 255"""
n = 255
li = range(1, 255 + 1) + range(n, 0, -1)
ti = cycle(li)
while True:
sleep(0.01)
i2c.write([0xAA, next(ti)])
i2c.close()
def init(interface, addr):
""" Initalize i2c interface """
i2c.init("/dev/i2c-" + str(interface))
i2c.open(addr)
#!/usr/bin/env python
from pyA20 import i2c
"""Initialize i2c bus"""
i2c.init("/dev/i2c-2")
i2c.open(0x77) #Slave Device adress
"""Set address pointer to the first"""
i2c.write([0x00])
print "Dump eeprom:"
i2c.close()
#!/usr/bin/env python
from pyA20 import i2c
i2c.init("/dev/i2c-0") #Initialize module to use /dev/i2c-0
res = i2c.open(0x20) #The slave device address is 0x2A
i2c.write([0x21]) #Set address at 0x21 ADCL register
value = i2c.read(1) #Read 1 byte
valueL=[hex(x) for x in value]
i2c.write([0x20]) #Set address at 0x20 ADCH register
value = i2c.read(1) #Read 1
valueH=[int(x) for x in value]
total=int(valueL[0],16)+(valueH[0]<<8)
voltage=(total+3.737611)/76.250833
percentage=round((100*(voltage-10.4))/2.2)
percentage=100 if percentage>100 else percentage
percentage=0 if percentage<0 else percentage
print str(percentage)
i2c.close() #End communication with slave device
