コード例 #1
0
    x[0] = val & 0xFF    
    return x
    
    
def array_to_int(x):
    # convert a four byte array into an integer
    val = (x[0]<<24) + (x[1]<<16) + (x[2]<<8) + x[3]
    return val


# create an instance of the helper class and create an i2c bus object
i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()

# create a new instance of the RTC class
rtc = RTC(bus)

# integer to be written to the RTC memory
writeval = 176247 

# convert the integer into an array of bytes
writearray = int_to_array(writeval)

# write the array to the RTC memory
rtc.write_memory(0x08, writearray)

# read four bytes from the RTC memory into an array
read_array = rtc.read_memory(0x08, 4)

# print the individual array values
print (read_array[0], read_array[1], read_array[2], read_array[3])
コード例 #2
0
#!/usr/bin/python

from ABE_RTCPi import RTC
from ABE_helpers import ABEHelpers
import time

"""
================================================
ABElectronics RTC Pi real-time clock | RTC clock output demo
Version 1.0 Created 19/05/2014
Version 1.1 16/11/2014 updated code and functions to PEP8 format

run with: python demo-rtcout.py
================================================

This demo shows how to enable the clock square wave output on the RTC Pi
and set the frequency
"""

i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()
rtc = RTC(bus)  # create a new instance of the RTC class


# set the frequency of the output square-wave, options are: 1 = 1Hz, 2 =
# 4.096KHz, 3 = 8.192KHz, 4 = 32.768KHz
rtc.set_frequency(3)
rtc.enable_output()  # enable the square-wave
コード例 #3
0
        x[i] = buf[i]
    return x


def array_to_double(val):
    # convert an eight byte array into a double
    dval, = struct.unpack('d', bytearray(val))
    return (dval)


# create an instance of the helper class and create an i2c bus object
i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()

# create a new instance of the RTC class
rtc = RTC(bus)

# number to be written to the RTC memory
value = 0.0005

# convert the number into an array of bytes
writearray = double_to_array(value)

# write the array to the RTC memory
rtc.write_memory(0x08, writearray)

# read eight bytes from the RTC memory into an array
read_array = rtc.read_memory(0x08, 8)

# combine the array values into an number and print it
print(array_to_double(read_array))
コード例 #4
0
#!/usr/bin/python3

from ABE_RTCPi import RTC
from ABE_helpers import ABEHelpers
import time
"""
================================================
ABElectronics RTC Pi real-time clock | Set Time Demo
Version 1.0 Created 29/02/2015

Requires python 3 smbus to be installed

run with: python3 demo-rtcsettime.py
================================================

This demo shows how to set the time on the RTC Pi and then read the
current time at 1 second intervals
"""

i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()
rtc = RTC(bus)  # create a new instance of the RTC class

# set the date using ISO 8601 format - YYYY-MM-DDTHH:MM:SS
rtc.set_date("2013-04-23T12:32:11")

while True:
    # read the date from the RTC in ISO 8601 format and print it to the screen
    print(rtc.read_date())
    time.sleep(1)  # wait 1 second
コード例 #5
0
from ABE_RTCPi import RTC
from ABE_helpers import ABEHelpers
import time

"""
================================================
ABElectronics RTC Pi real-time clock | Set Time Demo
Version 1.0 Created 19/05/2014
Version 1.1 16/11/2014 updated code and functions to PEP8 format

run with: python demo-rtcsettime.py
================================================

This demo shows how to set the time on the RTC Pi and then read the
current time at 1 second intervals
"""

i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()
rtc = RTC(bus)  # create a new instance of the RTC class


# set the date using ISO 8601 format - YYYY-MM-DDTHH:MM:SS
rtc.set_date("2013-04-23T12:32:11")

while True:
    # read the date from the RTC in ISO 8601 format and print it to the screen
    print rtc.read_date()
    time.sleep(1)  # wait 1 second
コード例 #6
0
#!/usr/bin/python3

from ABE_RTCPi import RTC
from ABE_helpers import ABEHelpers
import time

"""
================================================
ABElectronics RTC Pi real-time clock | RTC clock output demo
Version 1.0 Created 29/02/2015

Requires python 3 smbus to be installed

run with: python3 demo-rtcout.py
================================================

This demo shows how to enable the clock square wave output on the RTC Pi
and set the frequency
"""

i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()
rtc = RTC(bus)  # create a new instance of the RTC class


# set the frequency of the output square-wave, options are: 1 = 1Hz, 2 =
# 4.096KHz, 3 = 8.192KHz, 4 = 32.768KHz
rtc.set_frequency(3)
rtc.enable_output()  # enable the square-wave