#!/usr/bin/python3 from ABE_ExpanderPi import RTC from ABE_helpers import ABEHelpers import time """ ================================================ ABElectronics Expander Pi | RTC clock output demo Version 1.0 Created 29/03/2015 run with: python3 demo-rtcout.py ================================================ This demo shows how to enable the clock square wave output on the Expander Pi real-time clock 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
#!/usr/bin/python
from ABE_ExpanderPi import RTC
from ABE_helpers import ABEHelpers
import time
"""
================================================
ABElectronics Expander Pi | Set Time Demo
Version 1.0 Created 21/08/2014
run with: python demo-rtcset_date.py
===============================================
This demo shows how to set the time on the Expander Pi real-time clock
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
from ABE_ExpanderPi import RTC
from ABE_helpers import ABEHelpers
import time
"""
================================================
ABElectronics Expander Pi | Set Time Demo
Version 1.0 Created 29/03/2015
run with: python3 demo-rtcset_date.py
===============================================
This demo shows how to set the time on the Expander Pi real-time clock
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
from ABE_ExpanderPi import IO
from ABE_ExpanderPi import DAC
import time
import os
# ================================================
# ABElectronics Expander Pi | Tester
# Version 1.0 Created 08/11/2014
# Version 1.1 Updated 11/06/2017 updated to include changes to Expander Pi library
#
# run with: python tester.py
# ================================================
# This script tests the various functionality of the Expander Pi
rtc = RTC() # create a new instance of the RTC class
adc = ADC() # create an instance of the ADC class
io = IO() # create an instance of the IO class
dac = DAC(1) # create an instance of the DAC class with a gain of 0
# set the date using ISO 8601 format - YYYY-MM-DDTHH:MM:SS
rtc.set_date("2017-01-01T00:00:00")
dac.set_dac_voltage(1, 1.5) # set the voltage on channel 1 to 1.5V
dac.set_dac_voltage(2, 1.0) # set the voltage on channel 2 to 1.0V
# set the reference voltage. this should be set to the exact voltage
# measured on the Expander Pi Vref pin.
adc.set_adc_refvoltage(4.096)
while True:
# clear the console
# convert a double into an eight byte array
buf = bytearray(struct.pack('d', val))
x = [0, 0, 0, 0, 0, 0, 0, 0]
for i in range(0, 8):
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 a new instance of the RTC class
rtc = RTC()
# 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))
#!/usr/bin/python3 from ABE_ExpanderPi import RTC import time """ ================================================ ABElectronics Expander Pi | RTC clock output demo Version 1.0 Created 21/08/2014 Version 1.1 Updated 11/06/2017 updated to include changes to Expander Pi library run with: python3 demo-rtcout.py ================================================ This demo shows how to enable the clock square wave output on the Expander Pi real-time clock and set the frequency """ rtc = RTC() # 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
#!/usr/bin/python3
from ABE_ExpanderPi import RTC
import time
"""
================================================
ABElectronics Expander Pi | Set Time Demo
Version 1.0 Created 21/08/2014
Version 1.1 Updated 11/06/2017 updated to include changes to Expander Pi library
run with: python3 demo-rtcset_date.py
===============================================
This demo shows how to set the time on the Expander Pi real-time clock
and then read the current time at 1 second intervals
"""
rtc = RTC() # create a new instance of the RTC class
# set the date using ISO 8601 format - YYYY-MM-DDTHH:MM:SS
rtc.set_date("2017-06-11T12:32:11")
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
val >>= 8
x[2] = val & 0xFF
val >>= 8
x[1] = val & 0xFF
val >>= 8
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 a new instance of the RTC class
rtc = RTC()
# 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])
from ABE_ExpanderPi import DAC
import time
import os
# ================================================
# ABElectronics Expander Pi | Tester
# Version 1.0 Created 29/03/2015
#
# run with: python3 tester.py
# ================================================
# This script tests the various functionality of the Expander Pi
i2c_helper = ABEHelpers()
bus = i2c_helper.get_smbus()
rtc = RTC(bus) # create a new instance of the RTC class
adc = ADC() # create an instance of the ADC class
io = IO(bus) # create an instance of the IO class
dac = DAC() # create an instance of the DAC class
# set the date using ISO 8601 format - YYYY-MM-DDTHH:MM:SS
rtc.set_date("2014-01-01T00:00:00")
dac.set_dac_voltage(1, 1.5) # set the voltage on channel 1 to 1.5V
dac.set_dac_voltage(2, 1.0) # set the voltage on channel 2 to 1.0V
# set the reference voltage. this should be set to the exact voltage
# measured on the Expander Pi Vref pin.
adc.set_adc_refvoltage(4.096)
while True:
# clear the console
