DrJoe

it works:

(15348569994255425064L, 13114784581154432808L)
Sensor1:  20.69 °C
Sensor1:  20.69 °C
Sensor2:  -0.25 °C
Sensor2:  -0.25 °C

Vielen Dank

Hallo,

bitte um mithilfe 

wenn der ds18b20 sensor mit dem Python script Temperaturen unter null °C ausliest, ergeben sich fehlerhafte werte: Sensor2: 4094.81 °C ?

Herausgefunden habe ich das durch einfaches tauschen der Position der sensoren von innen/aussen.

hat jemand eine Idee?

hier der Code:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

HOST = "localhost"
PORT = 4223
UID = "GGW" # Change XYZ to the UID of your One Wire Bricklet

import time

from tinkerforge.ip_connection import IPConnection
from tinkerforge.bricklet_one_wire import BrickletOneWire

if __name__ == "__main__":
    ipcon = IPConnection() # Create IP connection
    ow = BrickletOneWire(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd
    # Don't use device before ipcon is connected

    ids = ow.search_bus().identifier     
    print ids                           #id 13114784581154432808L

    ow.write_command(13114784581154432808L, 78) # WRITE SCRATCHPAD
    ow.write(0) # ALARM H (unused)
    ow.write(0) # ALARM L (unused)
    ow.write(127) # CONFIGURATION: 12 bit mode

    # Read temperature 2 times
    for i in range(2):
        ow.write_command(13114784581154432808L, 68) # CONVERT T (start temperature conversion)
        time.sleep(2) # Wait for conversion to finish
        ow.write_command(13114784581154432808L, 190) # READ SCRATCHPAD

        t_low = ow.read().data
        t_high = ow.read().data

        temperature1 = ('{:6.2f}'.format((t_low | (t_high << ) / 16.0))      

        
        print "Sensor1: %s °C" % temperature1         		


    
    ipcon.disconnect()




if __name__ == "__main__":
    ipcon = IPConnection() # Create IP connection
    ow = BrickletOneWire(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd
    # Don't use device before ipcon is connected

   
   
    ow.write_command(15348569994255425064L, 78)

    
    ow.write(0) # ALARM H (unused)
    ow.write(0) # ALARM L (unused)
    ow.write(127) # CONFIGURATION: 12 bit mode

    # Read temperature 2 times
    for i in range(2):
        
        ow.write_command(15348569994255425064L, 68)        
        
        time.sleep(2) # Wait for conversion to finish
        
        ow.write_command(15348569994255425064L, 190)       

        t_low = ow.read().data
        t_high = ow.read().data
        
        temperature2 = ('{:6.2f}'.format((t_low | (t_high << ) / 16.0))		
                        
        print "Sensor2: %s °C" % temperature2  		



    
    ipcon.disconnect()		

Ausgabe:

(15348569994255425064L, 13114784581154432808L)
Sensor1:  20.25 °C
Sensor1:  20.31 °C
Sensor2: 4095.69 °C
Sensor2: 4095.69 °C

?

das mit den ids hat funktioniert,

und wie soll der print befehl für den folgenden sensor geschrieben werden?

Verstehe nicht, was in der {0} zu stehen hat inder zeile print.

#!/usr/bin/env python
# -*- coding: utf-8 -*-

HOST = "localhost"
PORT = 4223
UID = "GGW" # Change XYZ to the UID of your One Wire Bricklet GGW

import time

from tinkerforge.ip_connection import IPConnection
from tinkerforge.bricklet_one_wire import BrickletOneWire

if __name__ == "__main__":
    ipcon = IPConnection() # Create IP connection
    ow = BrickletOneWire(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd
    # Don't use device before ipcon is connected

    ids = ow.search_bus().identifier      
    print ids
    ow.write_command(15348569994255425064L, 78) # WRITE SCRATCHPAD
    ow.write_command(14772109243647972136L, 78)


    
    ow.write(0) # ALARM H (unused)
    ow.write(0) # ALARM L (unused)
    ow.write(127) # CONFIGURATION: 12 bit mode

    # Read temperature 2 times
    for i in range(2):
        ow.write_command(15348569994255425064L, 68) 
        ow.write_command(14772109243647972136L, 68)        
        
        time.sleep(1) # Wait for conversion to finish
        ow.write_command(15348569994255425064L, 190) # READ SCRATCHPAD
        ow.write_command(14772109243647972136L, 190)       

        t_low = ow.read().data
        t_high = ow.read().data
        print('Temperature: {0} °C'.format((t_low | (t_high << ) / 16.0))
        print('Temperature1: {0} °C'.format((t_low | (t_high << ) / 16.0))





    #raw_input("Press key to exit\n") # Use input() in Python 3
    ipcon.disconnect()

als Ergebnis bekomme ich:

(15348569994255425064L, 14772109243647972136L)
Temperature: 17.3125 °C
Temperature1: 17.3125 °C
Temperature: 17.3125 °C
Temperature1: 17.3125 °C

Vielen Dank

Hallo,

wie muss denn der python code aussehen, wenn mehrere ds18b20 Sensoren mit dem 1wire bricklet ausgelesen werden sollen?

Ich bin leider etwas ratlos

#!/usr/bin/env python
# -*- coding: utf-8 -*-

HOST = "localhost"
PORT = 4223
UID = "GGW" # Change XYZ to the UID of your One Wire Bricklet GGW

import time

from tinkerforge.ip_connection import IPConnection
from tinkerforge.bricklet_one_wire import BrickletOneWire

if __name__ == "__main__":
    ipcon = IPConnection() # Create IP connection
    ow = BrickletOneWire(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd
    # Don't use device before ipcon is connected

    ow.write_command(0, 78) # WRITE SCRATCHPAD
    ow.write(0) # ALARM H (unused)
    ow.write(0) # ALARM L (unused)
    ow.write(127) # CONFIGURATION: 12 bit mode

    # Read temperature 10 times
    for i in range(5):
        ow.write_command(0, 68) # CONVERT T (start temperature conversion)
        time.sleep(1) # Wait for conversion to finish
        ow.write_command(0, 190) # READ SCRATCHPAD

        t_low = ow.read().data
        t_high = ow.read().data
        print('Temperature: {0} °C'.format((t_low | (t_high << ) / 16.0))
        print('Temperature1: {0} °C'.format((t_low | (t_high << ) / 16.0))#??

    raw_input("Press key to exit\n") # Use input() in Python 3
    ipcon.disconnect()

Vielen Dank für die Hilfe

Hello,

i have a problem with the new LCD 128x64 Bricklet in python 2.7.3 running on a raspberry.

When i run this code:

#!/usr/bin/env python

# -*- coding: utf-8 -*-

HOST = "localhost"

PORT = 4223

UID = "XYZ" # Change XYZ to the UID of your LCD 128x64 Bricklet

from tinkerforge.ip_connection import IPConnection

from tinkerforge.bricklet_lcd_128x64 import BrickletLCD128x64

if __name__ == "__main__":

    ipcon = IPConnection() # Create IP connection

    lcd = BrickletLCD128x64(UID, ipcon) # Create device object

    ipcon.connect(HOST, PORT) # Connect to brickd

    # Don't use device before ipcon is connected

    # Clear display

    lcd.clear_display()

    # Write "Hello World" starting from upper left corner of the screen

    lcd.write_line(0, 0, "Hello World")

    raw_input("Press key to exit\n") # Use input() in Python 3

    ipcon.disconnect()

this error is shown:

Traceback (most recent call last):

  File "display.py", line 13, in <module>

    from tinkerforge.bricklet_lcd_128x64 import BrickletLCD128x64

ImportError: No module named bricklet_lcd_128x64[/color]

Can anyone help me?

Hallo, kann mir jemand einen einfachen Python Code für das outdoor weather bricklet nennen?

also grade nicht das callback-beispiel.

kann nichts finden 

also in etwa so:

https://www.tinkerforge.com/de/doc/Software/Bricklets/PTCV2_Bricklet_Python.html#ptc-v2-bricklet-python-examples