class ArduinoBoard(object):
""" Represents an Arduino board. """
def __init__(self, port):
from PyMata.pymata import PyMata
self._port = port
self._board = PyMata(self._port, verbose=False)
def set_mode(self, pin, direction, mode):
""" Sets the mode and the direction of a given pin. """
if mode == 'analog' and direction == 'in':
self._board.set_pin_mode(pin,
self._board.INPUT,
self._board.ANALOG)
elif mode == 'analog' and direction == 'out':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.ANALOG)
elif mode == 'digital' and direction == 'in':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.DIGITAL)
elif mode == 'digital' and direction == 'out':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.DIGITAL)
elif mode == 'pwm':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.PWM)
def get_analog_inputs(self):
""" Get the values from the pins. """
self._board.capability_query()
return self._board.get_analog_response_table()
def set_digital_out_high(self, pin):
""" Sets a given digital pin to high. """
self._board.digital_write(pin, 1)
def set_digital_out_low(self, pin):
""" Sets a given digital pin to low. """
self._board.digital_write(pin, 0)
def get_digital_in(self, pin):
""" Gets the value from a given digital pin. """
self._board.digital_read(pin)
def get_analog_in(self, pin):
""" Gets the value from a given analog pin. """
self._board.analog_read(pin)
def get_firmata(self):
""" Return the version of the Firmata firmware. """
return self._board.get_firmata_version()
def disconnect(self):
""" Disconnects the board and closes the serial connection. """
self._board.reset()
self._board.close()
def main():
#vehicle = connect('udp:192.168.1.177:14554', baud=57600, wait_ready=True)
#vehicle = connect('udp:10.42.0.1:14555', baud=57600, wait_ready=True)
#vehicle = connect('udp:127.0.0.1:14553', baud=57600, wait_ready=True)
arduino = PyMata("/dev/ttyUSB0")
arduino.sonar_config(3, 4)
arduino.sonar_config(5, 6)
arduino.sonar_config(7, 8)
def signal_handler(signal, frame):
if arduino != None:
arduino.reset()
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
while True:
arduino.digital_write(13, 1)
data = arduino.get_sonar_data()
sonarS = data[3][1]
sonarL = data[5][1]
sonarR = data[7][1]
print sonarS, sonarR, sonarL
time.sleep(.05)
#vehicle.mode = VehicleMode("LAND")
#vehicle.close()
arduino.close()
class ArduinoBoard(object):
""" Represents an Arduino board. """
def __init__(self, port):
self._port = port
self._board = PyMata(self._port, verbose=False)
def set_mode(self, pin, direction, mode):
""" Sets the mode and the direction of a given pin. """
if mode == 'analog' and direction == 'in':
self._board.set_pin_mode(pin,
self._board.INPUT,
self._board.ANALOG)
elif mode == 'analog' and direction == 'out':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.ANALOG)
elif mode == 'digital' and direction == 'in':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.DIGITAL)
elif mode == 'digital' and direction == 'out':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.DIGITAL)
elif mode == 'pwm':
self._board.set_pin_mode(pin,
self._board.OUTPUT,
self._board.PWM)
def get_analog_inputs(self):
""" Get the values from the pins. """
self._board.capability_query()
return self._board.get_analog_response_table()
def set_digital_out_high(self, pin):
""" Sets a given digital pin to high. """
self._board.digital_write(pin, 1)
def set_digital_out_low(self, pin):
""" Sets a given digital pin to low. """
self._board.digital_write(pin, 0)
def get_digital_in(self, pin):
""" Gets the value from a given digital pin. """
self._board.digital_read(pin)
def get_analog_in(self, pin):
""" Gets the value from a given analog pin. """
self._board.analog_read(pin)
def get_firmata(self):
""" Return the version of the Firmata firmware. """
return self._board.get_firmata_version()
def disconnect(self):
""" Disconnects the board and closes the serial connection. """
self._board.reset()
self._board.close()
# create a PyMata instance
board = PyMata("/dev/ttyACM0")
def signal_handler(sig, frame):
print('You pressed Ctrl+C!!!!')
if board is not None:
board.reset()
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
# control the servo - note that you don't need to set pin mode
# configure the servo
board.servo_config(SERVO_MOTOR)
while (1):
# move the servo to 20 degrees
board.analog_write(SERVO_MOTOR, 20)
time.sleep(1)
# move the servo to 100 degrees
board.analog_write(SERVO_MOTOR, 100)
time.sleep(1)
# move the servo to 20 degrees
board.analog_write(SERVO_MOTOR, 20)
# close the interface down cleanly
board.close()
class BiColorDisplayController:
# display blink control values
board_address = 0 # i2c address
blink_rate = 0 # blink rate
brightness = 0 # brightness
# blink rate defines
HT16K33_BLINK_CMD = 0x80
HT16K33_BLINK_DISPLAYON = 0x01
HT16K33_BLINK_OFF = 0
HT16K33_BLINK_2HZ = 1
HT16K33_BLINK_1HZ = 2
HT16K33_BLINK_HALFHZ = 3
# oscillator control values
OSCILLATOR_ON = 0x21
OSCILLATOR_OFF = 0x20
# led color selectors
LED_OFF = 0
LED_RED = 1
LED_YELLOW = 2
LED_GREEN = 3
# brightness
MAX_BRIGHTNESS = 15
# the display buffer
# This is an 16x16 matrix that stores pixel data for the display
# Even rows store the green pixel data and odd rows store the red pixel data.
#
# A physical row on the device is controlled by a row pair (ie 0,1 and 2,3, etc) for the 2 colors.
#
# To output yellow the red and green information for the rows will be set high.
#
display_buffer = [[0 for x in xrange(8)] for x in xrange(8)]
def __init__(self, address, blink_rate, brightness):
# create an instance of PyMata - we are using an Arduino UNO
"""
@param address: I2C address of the device
@param blink_rate: desired blink rate
@param brightness: brightness level for the display
"""
self.firmata = PyMata("/dev/ttyACM0")
self.board_address = address
self.blink_rate = blink_rate
self.brightness = brightness
self.clear_display_buffer()
# configure firmata for i2c on an UNO
self.firmata.i2c_config(0, self.firmata.ANALOG, 4, 5)
# turn on oscillator
self.oscillator_set(self.OSCILLATOR_ON)
# set blink rate
self.set_blink_rate(self.blink_rate)
# set brightness
self.set_brightness(self.brightness)
def set_blink_rate(self, b):
"""
Set the user's desired blink rate (0 - 3)
@param b: blink rate
"""
if (b > 3):
b = 0 # turn off if not sure
self.firmata.i2c_write(self.board_address,
(self.HT16K33_BLINK_CMD | self.HT16K33_BLINK_DISPLAYON | (b << 1)))
def oscillator_set(self, osc_mode):
"""
Turn oscillator on or off
@param osc_mode: osc mode (OSCILLATOR_ON or OSCILLATOR_OFF)
"""
self.firmata.i2c_write(self.board_address, osc_mode)
def set_brightness(self, brightness):
"""
Set the brightness level for the entire display
@param brightness: brightness level (0 -15)
"""
if brightness > 15:
brightness = 15
brightness |= 0xE0
self.brightness = brightness
self.firmata.i2c_write(0x70, brightness)
def set_pixel(self, row, column, color, suppress_write):
# rows 0,2,4,6,8,10,12,14 are green
# rows 1,3,5,7,9,11,13,15 are red
#
# A row entry consists of 2 bytes, the first always being 0 and the second
# being the state of the pixel (high or low)
"""
@param row: pixel row number
@param column: pix column number
@param color: pixel color (yellow is both red and green both on)
@param suppress_write: if true, just sets the internal data structure, else writes out the pixel to the display
"""
if (row < 0) or (row >= 8):
print "set_pixel(): ROW out of range"
return
if (column < 0) or (column >= 8):
print "set_pixel(): COLUMN out of range"
return
self.display_buffer[row][column] = color
# output changes to row on display
green = 0
red = 0
# calculate row for green rows and then adjust it for red
for col in range(0, 8):
# assemble green data for the row and output
if self.display_buffer[row][col] == self.LED_GREEN:
green |= 1 << col
elif self.display_buffer[row][col] == self.LED_RED:
red |= 1 << col
elif self.display_buffer[row][col] == self.LED_YELLOW:
green |= 1 << col
red |= 1 << col
elif self.display_buffer[row][col] == self.LED_OFF:
green &= ~(1 << col)
red &= ~(1 << col)
if suppress_write == False:
self.firmata.i2c_write(0x70, row * 2, 0, green)
self.firmata.i2c_write(0x70, row * 2 + 1, 0, red)
def set_bit_map(self, shape, color):
"""
Populate the bit map with the supplied "shape" and color
and then write the entire bitmap to the display
@param shape: pattern to display
@param color: color for the pattern
"""
for row in xrange(0, 8):
data = shape[row]
# shift data into buffer
bit_mask = 0x80
for column in xrange(0, 8):
if data & bit_mask:
self.set_pixel(row, column, color, True)
bit_mask >>= 1
self.output_entire_buffer()
def output_entire_buffer(self):
"""
Write the entire buffer to the display
"""
green = 0
red = 0
for row in xrange(0, 8):
for col in xrange(0, 8):
if self.display_buffer[row][col] == self.LED_GREEN:
green |= 1 << col
elif self.display_buffer[row][col] == self.LED_RED:
red |= 1 << col
elif self.display_buffer[row][col] == self.LED_YELLOW:
green |= 1 << col
red |= 1 << col
elif self.display_buffer[row][col] == self.LED_OFF:
green &= ~(1 << col)
red &= ~(1 << col)
self.firmata.i2c_write(0x70, row * 2, 0, green)
self.firmata.i2c_write(0x70, row * 2 + 1, 0, red)
def clear_display_buffer(self):
"""
Set all led's to off.
"""
for row in range(0, 8):
self.firmata.i2c_write(0x70, row * 2, 0, 0)
self.firmata.i2c_write(0x70, (row * 2) + 1, 0, 0)
for column in range(0, 8):
self.display_buffer[row][column] = 0
def close(self):
"""
close the interface down cleanly
"""
self.firmata.close()
def s2a_fm():
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
# total number of pins on arduino board
total_pins_discovered = 0
# number of pins that are analog
number_of_analog_pins_discovered = 0
# make sure we have a log directory and if not, create it.
if not os.path.exists('log'):
os.makedirs('log')
# turn on logging
logging.basicConfig(filename='./log/s2a_fm_debugging.log',
filemode='w',
level=logging.DEBUG)
logging.info(
's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
)
print 's2a est la version entierement en francais de s2a_fm, une sorte de s2a_fr v1.7'
print 's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks Tous droits reserves '
# print 'Traductions francaises : Sebastien Canet'
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
if len(sys.argv) == 2:
com_port = str(sys.argv[1])
else:
com_port = '/dev/ttyACM0'
logging.info('com port = %s' % com_port)
try:
# instantiate PyMata
firmata = PyMata(com_port) # pragma: no cover
except Exception:
print 'Impossible de communiquer avec PyMata - votre carte Arduino est bien connectee ??'
logging.exception(
'Could not instantiate PyMata - is your Arduino plugged in?')
logging.debug("Exiting s2a_fm")
return
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to firmata.IGNORE
firmata.analog_mapping_query()
capability_map = firmata.get_analog_mapping_request_results()
firmata.capability_query()
print "Merci de patienter pendant la detection du nombre de pins de votre Arduino. Cela peut prendre pres de 30s de plus."
# count the pins
for pin in capability_map:
total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != firmata.IGNORE:
number_of_analog_pins_discovered += 1
# log the number of pins found
logging.info('%d Total Pins and %d Analog Pins Found' %
(total_pins_discovered, number_of_analog_pins_discovered))
# instantiate the command handler
scratch_command_handler = ScratchCommandHandlers(
firmata, com_port, total_pins_discovered,
number_of_analog_pins_discovered)
# wait for a maximum of 30 seconds to retrieve the Arduino capability query
start_time = time.time()
pin_capability = firmata.get_capability_query_results()
while not pin_capability:
if time.time() - start_time > 30:
print ''
print "Impossible de determiner le nombre de pins - sortie du script."
firmata.close()
# keep sending out a capability query until there is a response
pin_capability = firmata.get_capability_query_results()
time.sleep(.1)
# we've got the capability, now build a dictionary with pin as the key and a list of all the capabilities
# for the pin as the key's value
pin_list = []
total_pins_discovered = 0
for entry in pin_capability:
# bump up pin counter each time IGNORE is found
if entry == firmata.IGNORE:
scratch_command_handler.pin_map[total_pins_discovered] = pin_list
total_pins_discovered += 1
pin_list = []
else:
pin_list.append(entry)
print "Detection des pins de la carte Arduino faite en %d secondes" % (
int(time.time() - start_time))
try:
# lance un script pour automatiser l'ouverture de Scratch pendant que le serveur se met en route
# il est separe pour permettre aux utilisateurs de le modifier en direct, dans le batch, ca simplifie
# os.startfile('Scratch2.bat')
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(firmata, scratch_command_handler)
except Exception:
logging.debug('Erreur dans s2a_fm.py %s' % str(Exception))
firmata.close()
return
except KeyboardInterrupt:
# give control back to the shell that started us
logging.info('s2a_fm.py: keyboard interrupt exception')
firmata.close()
return
self.btn_serv_pos.config(state = NORMAL)
self.btn_serv_neg.config(state = NORMAL)
else:
#el switch esta presionado, los botones se deshabilitan
self.lbl_switch.set("HIGH")
self.btn_serv_pos.config(state = DISABLED)
self.btn_serv_neg.config(state = DISABLED)
elif(key == "pot"):
#actualizo el valor escalado del potenciometro
self.lbl_val_pote.set(value)
else:
break
def alert(self):
'''
muestro un mensaje de error en el caso de llegar a un
valor de 0 o de 180 en la variable servo_pos
'''
showerror("ERROR", self.lbl_servo_err)
if __name__ == "__main__":
ard = PyMata()
app = simple(None)
app.title('my app')
app.focus_set()
config_ardu()
app.mainloop()
ard.close()
signal.signal(signal.SIGINT, signal_handler)
# send the arduino a firmata reset
firmata.reset()
# configure the stepper to use pins 9.10,11,12 and specify 512 steps per revolution
firmata.stepper_config(512, [12, 11, 10, 9])
# allow time for config to complete
time.sleep(.5)
# ask Arduino to return the stepper library version number to PyMata
firmata.stepper_request_library_version()
# allow time for command and reply to go across the serial link
time.sleep(.5)
print(("Stepper Library Version", ))
print((firmata.get_stepper_version()))
# move motor #0 500 steps forward at a speed of 20
firmata.stepper_step(20, 500)
# move motor #0 500 steps reverse at a speed of 20
firmata.stepper_step(20, -500)
# close firmata
firmata.close()
# This code is supporting material for the book
# Python Programming for Arduino
# by Pratik Desai
# published by PACKT Publishing
import time
from PyMata.pymata import PyMata
#Initializing Arduino using PyFirmata constructor
port = PyMata("COM5")
#Configure I2C pin
port.i2c_config(0, port.ANALOG, 4, 5)
# One shot read asking peripheral to send 2 bytes
port.i2c_read(0x23, 0, 2, port.I2C_READ)
# Wait for peripheral to send the data
time.sleep(3)
# Read from the peripheral
data = port.i2c_get_read_data(0x23)
# Obtain lux values from received data
LuxSum = (data[1] << 8 | data[2]) >> 4
lux = LuxSum/1.2
print str(lux) + ' lux'
port.close()
def s2a_fm():
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
# total number of pins on arduino board
total_pins_discovered = 0
# number of pins that are analog
number_of_analog_pins_discovered = 0
# make sure we have a log directory and if not, create it.
if not os.path.exists('log'):
os.makedirs('log')
# turn on logging
logging.basicConfig(filename='./log/s2a_fm_debugging.log',
filemode='w',
level=logging.DEBUG)
logging.info(
's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
)
print 's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
if len(sys.argv) == 2:
com_port = str(sys.argv[1])
else:
com_port = '/dev/ttyACM0'
logging.info('com port = %s' % com_port)
try:
# instantiate PyMata
firmata = PyMata(com_port) # pragma: no cover
except Exception:
print 'Could not instantiate PyMata - is your Arduino plugged in?'
logging.exception(
'Could not instantiate PyMata - is your Arduino plugged in?')
logging.debug("Exiting s2a_fm")
return
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to firmata.IGNORE
firmata.analog_mapping_query()
capability_map = firmata.get_analog_mapping_request_results()
firmata.capability_query()
print "Please wait for Total Arduino Pin Discovery to complete. This can take up to 30 additional seconds."
# count the pins
for pin in capability_map:
total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != firmata.IGNORE:
number_of_analog_pins_discovered += 1
# log the number of pins found
logging.info('%d Total Pins and %d Analog Pins Found' %
(total_pins_discovered, number_of_analog_pins_discovered))
# instantiate the command handler
scratch_command_handler = ScratchCommandHandlers(
firmata, com_port, total_pins_discovered,
number_of_analog_pins_discovered)
# wait for a maximum of 30 seconds to retrieve the Arduino capability query
start_time = time.time()
pin_capability = firmata.get_capability_query_results()
while not pin_capability:
if time.time() - start_time > 30:
print ''
print "Could not determine pin capability - exiting."
firmata.close()
# keep sending out a capability query until there is a response
pin_capability = firmata.get_capability_query_results()
time.sleep(.1)
# we've got the capability, now build a dictionary with pin as the key and a list of all the capabilities
# for the pin as the key's value
pin_list = []
total_pins_discovered = 0
for entry in pin_capability:
# bump up pin counter each time IGNORE is found
if entry == firmata.IGNORE:
scratch_command_handler.pin_map[total_pins_discovered] = pin_list
total_pins_discovered += 1
pin_list = []
else:
pin_list.append(entry)
print "Arduino Total Pin Discovery completed in %d seconds" % (
int(time.time() - start_time))
try:
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(firmata, scratch_command_handler)
except Exception:
logging.debug('Exception in s2a_fm.py %s' % str(Exception))
firmata.close()
return
except KeyboardInterrupt:
# give control back to the shell that started us
logging.info('s2a_fm.py: keyboard interrupt exception')
firmata.close()
return
class s2a_fm:
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
def __init__(self):
subprocess.Popen("scratch2")
# total number of pins on arduino board
self.total_pins_discovered = 0
# number of pins that are analog
self.number_of_analog_pins_discovered = 0
# COM-Port
self.com_port = "COM1"
#firmata
#self.firmata ="-
# make sure we have a log directory and if not, create it.
if not os.path.exists('log'):
os.makedirs('log')
# turn on logging
logging.basicConfig(filename='./log/s2a_fm_debugging.log', filemode='w', level=logging.DEBUG)
logging.info('s2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved ')
print 's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
def search_port(self):
#returns all serial COM-Ports
possible_ports = serial_ports()
print
for com_port in possible_ports:
logging.info('com port = %s' % com_port)
try:
# instantiate PyMata
self.firmata = PyMata(com_port) # pragma: no cover
self.com_port = com_port
return 1
except Exception:
print('Could not instantiate PyMata - is your Arduino plugged in?')
logging.exception('Could not instantiate PyMata on Port %s' % com_port)
return 0
#TODO: Ask if User Wants to flash Arduino on this Port
def discover_arduino(self):
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to self.firmata.IGNORE
self.firmata.analog_mapping_query()
self.capability_map = self.firmata.get_analog_mapping_request_results()
self.firmata.capability_query()
print("Please wait for Total Arduino Pin Discovery to complete. This can take up to 30 additional seconds.")
# count the pins
for pin in self.capability_map:
self.total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != self.firmata.IGNORE:
self.number_of_analog_pins_discovered += 1
# log the number of pins found
logging.info('%d Total Pins and %d Analog Pins Found' % (self.total_pins_discovered, self.number_of_analog_pins_discovered))
# instantiate the command handler
self.scratch_command_handler = ScratchCommandHandlers(self.firmata, self.com_port, self.total_pins_discovered,
self.number_of_analog_pins_discovered)
# wait for a maximum of 30 seconds to retrieve the Arduino capability query
start_time = time.time()
pin_capability = self.firmata.get_capability_query_results()
while not pin_capability:
if time.time() - start_time > 30:
print "Could not determine pin capability - exiting."
self.firmata.close()
# keep sending out a capability query until there is a response
pin_capability = self.firmata.get_capability_query_results()
time.sleep(.1)
# we've got the capability, now build a dictionary with pin as the key and a list of all the capabilities
# for the pin as the key's value
pin_list = []
total_pins_discovered = 0
for entry in pin_capability:
# bump up pin counter each time IGNORE is found
if entry == self.firmata.IGNORE:
self.scratch_command_handler.pin_map[total_pins_discovered] = pin_list
total_pins_discovered += 1
pin_list = []
else:
pin_list.append(entry)
print "Arduino Total Pin Discovery completed in %d seconds" % (int(time.time() - start_time))
def guess_path(self):
os_name = sys.plattform
if os_name == "linux2":
return "scratch2"
elif os_name == "win32" or os_name == "cygwin":
#try some
if os.path.exists("C:\Program Files (x86)\Scratch 2\Scratch 2.exe"):
return "C:\Program Files (x86)\Scratch 2\Scratch 2.exe"
elif os_name == "darwin":
return "scratch2"
return -1
def start_server(self):
try:
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(self.firmata, self.scratch_command_handler)
except Exception:
logging.debug('Exception in s2a_fm.py %s' % str(Exception))
self.firmata.close()
return
except KeyboardInterrupt:
# give control back to the shell that started us
logging.info('s2a_fm.py: keyboard interrupt exception')
self.firmata.close()
return
@description: Blink Arduino mediante Firmata
@url: http://www.aprendiendoarduino.com/
'''
import time
import sys
from PyMata.pymata import PyMata
BOARD_LED = 13
port = input("Puerto Serie Arduino: ")
try:
arduino = PyMata(port, verbose=True)
for x in range(10):
print(x + 1)
# Set the output to 1 = High
arduino.digital_write(BOARD_LED, 1)
# Wait a half second between toggles.
time.sleep(.5)
# Set the output to 0 = Low
arduino.digital_write(BOARD_LED, 0)
time.sleep(.5)
# Close PyMata when we are done
arduino.close()
except: # catch *all* exceptions
e = sys.exc_info()[0]
print("Puerto no válido. %s" % e)
class Firmata(Adaptor):
def __init__(self, options):
super(Firmata, self).__init__(options)
if 'port' not in options:
raise self.ParameterRequired(
'A port must be specified for Firmata connection.'
)
self.port = options.get('port')
self.board = PyMata('/dev/ttyACM0', verbose=True)
signal.signal(signal.SIGINT, self.signal_handler)
self.pins = {
'digital': [],
'analog': [],
'pwm': [],
'servo': [],
'i2c': [],
}
def analog_write(self, pin_number, value):
if pin_number not in self.pins['analog']:
self.pins['analog'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.OUTPUT,
self.board.ANALOG
)
self.board.analog_write(pin_number, value)
def analog_read(self, pin_number):
if pin_number not in self.pins['analog']:
self.pins['analog'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.INPUT,
self.board.ANALOG
)
return self.board.analog_read(pin_number)
def digital_write(self, pin_number, value):
if pin_number not in self.pins['digital']:
self.pins['digital'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.OUTPUT,
self.board.DIGITAL
)
self.board.digital_write(pin_number, value)
def digital_read(self, pin_number):
if pin_number not in self.pins['digital']:
self.pins['digital'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.INPUT,
self.board.DIGITAL
)
return self.board.analog_write(pin_number)
def pwm_write(self, pin_number, value):
if pin_number not in self.pins['pwm']:
self.pins['pwm'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.PWM,
self.board.DIGITAL
)
return self.board.analog_write(pin_number, value)
def pwm_read(self, pin_number):
if pin_number not in self.pins['pwm']:
self.pins['pwm'].append(pin_number)
self.board.set_pin_mode(
pin_number,
self.board.PWM,
self.board.DIGITAL
)
return self.board.analog_read(pin_number)
def servo_write(self, pin_number, value):
if pin_number not in self.pins['servo']:
self.pins['servo'].append(pin_number)
self.board.servo_config(pin_number)
self.board.analog_write(pin_number, value)
def disconnect(self):
# Close the firmata interface down cleanly
self.board.close()
def signal_handler(self, sig, frame):
print('Ctrl+C pressed')
if self.board is not None:
self.board.reset()
sys.exit(0)
class ParameterRequired(Exception):
def __init__(self, message='A required parameter was not provided.'):
super(Firmata.ParameterRequired, self).__init__(message)
def __str__(self):
return self.message
# by Pratik Desai
# published by PACKT Publishing
import time
from PyMata.pymata import PyMata
#Initialize Arduino using port name
port = PyMata("COM5")
#Configure I2C pin
port.i2c_config(0, port.ANALOG, 4, 5)
# One shot read asking peripheral to send 2 bytes
port.i2c_read(0x48, 0, 2, port.I2C_READ)
# Wait for peripheral to send the data
time.sleep(3)
# Read from the peripheral
data = port.i2c_get_read_data(0x48)
# Obtain temperature from received data
TemperatureSum = (data[1] << 8 | data[2]) >> 4
celsius = TemperatureSum * 0.0625
print celsius
fahrenheit = (1.8 * celsius) + 32
print fahrenheit
port.close()
def s2a_fm():
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
# total number of pins on arduino board
total_pins_discovered = 0
# number of pins that are analog
number_of_analog_pins_discovered = 0
# make sure we have a log directory and if not, create it.
if not os.path.exists('log'):
os.makedirs('log')
# turn on logging
logging.basicConfig(filename='./log/s2a_fm_debugging.log', filemode='w', level=logging.DEBUG)
logging.info('s2a_fm version 1.0 Copyright(C) 2013 Alan Yorinks All Rights Reserved ')
print 's2a_fm version 1.0 Copyright(C) 2013 Alan Yorinks All Rights Reserved '
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
if len(sys.argv) == 2:
com_port= str(sys.argv[1])
else:
com_port = '/dev/ttyACM0'
logging.info('com port = %s' % com_port)
try:
# instantiate PyMata
firmata = PyMata(com_port) # pragma: no cover
except:
Exception
print 'Could not instantiate PyMata - is your Arduino plugged in?'
logging.exception('Could not instantiate PyMata - is your Arduino plugged in?')
logging.debug("Exiting s2a_fm")
return
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to firmata.IGNORE
firmata.analog_mapping_query()
capability_map = firmata.get_analog_mapping_request_results()
# count the pins
for pin in capability_map:
total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != firmata.IGNORE:
number_of_analog_pins_discovered += 1
# log the number of pins found
logging.info('%d Total Pins and %d Analog Pins Found' % (total_pins_discovered,
number_of_analog_pins_discovered))
# instantiate the command handler
scratch_command_handler = ScratchCommandHandlers(firmata, com_port, total_pins_discovered,
number_of_analog_pins_discovered)
try:
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(firmata, scratch_command_handler)
except Exception:
logging.debug('Exception in s2a_fm.py %s' % str(Exception))
firmata.close()
return
except KeyboardInterrupt:
# give control back to the shell that started us
logging.info('s2a_fm.py: keyboard interrupt exception')
firmata.close()
return
def s2a_fm():
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
# total number of pins on arduino board
total_pins_discovered = 0
# number of pins that are analog
number_of_analog_pins_discovered = 0
# make sure we have a log directory and if not, create it.
if not os.path.exists('log'):
os.makedirs('log')
# turn on logging
logging.basicConfig(filename='./log/s2a_fm_debugging.log', filemode='w', level=logging.DEBUG)
logging.info('s2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved ')
print 's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
if len(sys.argv) == 2:
com_port = str(sys.argv[1])
else:
com_port = '/dev/ttyACM0'
logging.info('com port = %s' % com_port)
try:
# instantiate PyMata
firmata = PyMata(com_port) # pragma: no cover
except Exception:
print 'Could not instantiate PyMata - is your Arduino plugged in?'
logging.exception('Could not instantiate PyMata - is your Arduino plugged in?')
logging.debug("Exiting s2a_fm")
return
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to firmata.IGNORE
firmata.analog_mapping_query()
capability_map = firmata.get_analog_mapping_request_results()
firmata.capability_query()
print "Please wait for Total Arduino Pin Discovery to complete. This can take up to 30 additional seconds."
# count the pins
for pin in capability_map:
total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != firmata.IGNORE:
number_of_analog_pins_discovered += 1
# log the number of pins found
logging.info('%d Total Pins and %d Analog Pins Found' % (total_pins_discovered, number_of_analog_pins_discovered))
# instantiate the command handler
scratch_command_handler = ScratchCommandHandlers(firmata, com_port, total_pins_discovered,
number_of_analog_pins_discovered)
# wait for a maximum of 30 seconds to retrieve the Arduino capability query
start_time = time.time()
pin_capability = firmata.get_capability_query_results()
while not pin_capability:
if time.time() - start_time > 30:
print ''
print "Could not determine pin capability - exiting."
firmata.close()
# keep sending out a capability query until there is a response
pin_capability = firmata.get_capability_query_results()
time.sleep(.1)
# we've got the capability, now build a dictionary with pin as the key and a list of all the capabilities
# for the pin as the key's value
pin_list = []
total_pins_discovered = 0
for entry in pin_capability:
# bump up pin counter each time IGNORE is found
if entry == firmata.IGNORE:
scratch_command_handler.pin_map[total_pins_discovered] = pin_list
total_pins_discovered += 1
pin_list = []
else:
pin_list.append(entry)
print "Arduino Total Pin Discovery completed in %d seconds" % (int(time.time() - start_time))
try:
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(firmata, scratch_command_handler)
except Exception:
logging.debug('Exception in s2a_fm.py %s' % str(Exception))
firmata.close()
return
except KeyboardInterrupt:
# give control back to the shell that started us
logging.info('s2a_fm.py: keyboard interrupt exception')
firmata.close()
return
signal.signal(signal.SIGINT, signal_handler)
# send the arduino a firmata reset
firmata.reset()
# configure the stepper to use pins 9.10,11,12 and specify 512 steps per revolution
firmata.stepper_config(512, [12, 11, 10, 9])
# allow time for config to complete
time.sleep(.5)
# ask Arduino to return the stepper library version number to PyMata
firmata.stepper_request_library_version()
# allow time for command and reply to go across the serial link
time.sleep(.5)
print("Stepper Library Version",)
print(firmata.get_stepper_version())
# move motor #0 500 steps forward at a speed of 20
firmata.stepper_step(20, 500)
# move motor #0 500 steps reverse at a speed of 20
firmata.stepper_step(20, -500)
# close firmata
firmata.close()
def s2a_fm():
"""
This is the "main" function of the program.
It will instantiate PyMata for communication with an Arduino micro-controller
and the command handlers class.
It will the start the HTTP server to communicate with Scratch 2.0
@return : This is the main loop and should never return
"""
global s2a_fm_status
# total number of pins on arduino board
total_pins_discovered = 0
# number of pins that are analog
number_of_analog_pins_discovered = 0
# Ethernet/WiFi autodetect
autodetect = 0
print 's2a_fm version 1.5 Copyright(C) 2013-14 Alan Yorinks All Rights Reserved '
# get the com_port from the command line or default if none given
# if user specified the com port on the command line, use that when invoking PyMata,
# else use '/dev/ttyACM0'
projectName = '86Hexapodtest'
com_port = '/dev/ttyACM0'
ui_server_port = 8386
if len(sys.argv) == 2:
if str(sys.argv[1]) == 'autodetect':
autodetect = 1
else:
com_port = str(sys.argv[1])
elif len(sys.argv) == 3:
if str(sys.argv[1]).find('com') == 0:
com_port = str(sys.argv[1])
ui_server_port = int(sys.argv[2])
elif str(sys.argv[1]) == 'autodetect':
autodetect = 1
ui_server_port = int(sys.argv[2])
else:
host_ip = str(sys.argv[1])
host_port = int(sys.argv[2])
elif len(sys.argv) == 4:
host_ip = str(sys.argv[1])
host_port = int(sys.argv[2])
ui_server_port = int(sys.argv[3])
try:
# instantiate PyMata
if autodetect == 1:
firmata = PyMata(host_port=2000,
ui_server_port=ui_server_port,
projectName=projectName,
autodetect=autodetect)
elif str(sys.argv[1]).find('com') == 0:
firmata = PyMata(port_id=com_port,
ui_server_port=ui_server_port) # pragma: no cover
elif len(sys.argv) == 3 or len(sys.argv) == 4:
firmata = PyMata(host_ip=host_ip,
host_port=host_port,
ui_server_port=ui_server_port) # pragma: no cover
except Exception:
print 'Could not instantiate PyMata - is your Arduino plugged in?'
return
firmata.set_s2a_fm_status(5)
# determine the total number of pins and the number of analog pins for the Arduino
# get the arduino analog pin map
# it will contain an entry for all the pins with non-analog set to firmata.IGNORE
# firmata.analog_mapping_query()
# time.sleep(.1)
capability_map = firmata.get_analog_mapping_request_results()
firmata.capability_query()
print "Please wait for Total Arduino Pin Discovery to complete. This can take up to 30 additional seconds."
# count the pins
for pin in capability_map:
total_pins_discovered += 1
# non analog pins will be marked as IGNORE
if pin != firmata.IGNORE:
number_of_analog_pins_discovered += 1
# instantiate the command handler
scratch_command_handler = ScratchCommandHandlers(
firmata, com_port, total_pins_discovered,
number_of_analog_pins_discovered)
firmata.set_s2a_fm_status(6)
# wait for a maximum of 30 seconds to retrieve the Arduino capability query
start_time = time.time()
pin_capability = firmata.get_capability_query_results()
while not pin_capability:
firmata.set_s2a_fm_status(7)
if time.time() - start_time > 30:
firmata.set_s2a_fm_status(99)
firmata.set_error_no(4)
print ''
print "Could not determine pin capability - exiting."
firmata.send_error_message()
firmata.close(True)
return
# keep sending out a capability query until there is a response
pin_capability = firmata.get_capability_query_results()
time.sleep(.1)
firmata.set_s2a_fm_status(8)
# we've got the capability, now build a dictionary with pin as the key and a list of all the capabilities
# for the pin as the key's value
pin_list = []
total_pins_discovered = 0
for entry in pin_capability:
# bump up pin counter each time IGNORE is found
if entry == firmata.IGNORE:
scratch_command_handler.pin_map[total_pins_discovered] = pin_list
total_pins_discovered += 1
pin_list = []
else:
pin_list.append(entry)
print "Arduino Total Pin Discovery completed in %d seconds" % (
int(time.time() - start_time))
firmata.set_s2a_fm_status(9)
thread.start_new_thread(firmata.send_command_check_active, (firmata, ))
try:
# start the server passing it the handle to PyMata and the command handler.
scratch_http_server.start_server(firmata, scratch_command_handler)
except Exception:
firmata.set_error_no(5)
firmata.send_error_message()
firmata.close(True)
return
except KeyboardInterrupt:
# give control back to the shell that started us
firmata.set_error_no(99)
firmata.close(True)
return
master = Tk()
master.title("RGB LED")
master.geometry('250x200')
r = Scale(master,
from_=255,
to=0,
command=(rd),
label="Red",
troughcolor="red")
r.pack(side=LEFT)
g = Scale(master,
from_=255,
to=0,
command=(gr),
label="Green",
troughcolor="green")
g.pack(side=RIGHT)
b = Scale(master,
from_=255,
to=0,
command=(bl),
label="Blue",
troughcolor="blue")
b.pack(side=RIGHT)
mainloop()
board.close()
board.reset()
@version: 1.0
@description: Blink Arduino mediante Firmata
@url: http://www.aprendiendoarduino.com/
'''
import time
import sys
from PyMata.pymata import PyMata
BOARD_LED = 13
port = input("Puerto Serie Arduino: ")
try:
arduino = PyMata(port, verbose=True)
for x in range(10):
print(x + 1)
# Set the output to 1 = High
arduino.digital_write(BOARD_LED, 1)
# Wait a half second between toggles.
time.sleep(.5)
# Set the output to 0 = Low
arduino.digital_write(BOARD_LED, 0)
time.sleep(.5)
# Close PyMata when we are done
arduino.close()
except: # catch *all* exceptions
e = sys.exc_info()[0]
print("Puerto no válido. %s" % e)