Name 'value' is not defined

[7o 7]

Hello, i am struggeling again

i just try to update slider values with a function. but it always tells me i've not defined the name 'value'

I thought it takes the value from slider when type in 'value' as argument


look here:

.kv

#:import SwapTransition kivy.uix.screenmanager.SwapTransition

<Greenbutton@Button>
    background_color:(0,1,0,1)
   
<Redbutton@Button>
    background_color:(1,0,0,1)


ScreenManager:
    transition: SwapTransition()
   
    Screen:
        name: 'home'
       
        BoxLayout:
            orientation: "vertical"
            padding: 100
            spacing: 50
           
            Greenbutton:
                text: 'Steuerung'
                on_press: root.current = 'control'
               
            Greenbutton:
                text: 'PLATZHALTER'
   
    Screen:
        name: 'control'
       
        BoxLayout:
            orientation: "vertical"
           
            BoxLayout:
                size_hint: 1.0, 0.05
                Label:
                    id: 'label_1'
                    font_size: 25
                    text:'Wagi-Pi Control Center'
               

            GridLayout:
                size_hint: 1.0, 0.95
                cols: 3
                padding:10
                spacing: 5
               
                Redbutton:
                    text: 'MENU'
                    on_press: root.current = 'home'        
                   
                Button:
                    id: allOnButton
                    text: 'ALL ON'
                    on_press: app.all_on()
                   
                Button:
                    id: allOffButton
                    text: 'ALL OFF'
                    on_press: app.all_off()
                   
                ToggleButton:
                    id: doorButton
                    text: 'DOOR'
                   
                ToggleButton:
                    id: middleButton
                    text: 'MIDDLE'
                   
                ToggleButton:
                    id: bedButton
                    text: 'BED'
                   
                Button:
                    id: dimModeButton
                    text: 'DIM MODE'
                    on_press: root.current = 'dim'
                   
                Button:
                    id: pressButton
                    text: 'PRESS'
                   
                Button:
                    id: beepButton
                    text: 'BEEP'    
                   
                ToggleButton:
                    id: gpio1Button
                    text: 'GPIO 1'    
                   
                ToggleButton:
                    id: gpio2Button
                    text: 'GPIO 2'    
                   
                ToggleButton:
                    id: gpio3Button
                    text: 'GPIO 3'
                   
    Screen:
        name: 'dim'
       
        BoxLayout:
            orientation: "vertical"
            Label:
                id: label_slider1
                text: '50'
            Slider:
                id: slider1
                orientation: 'horizontal'
                min: 0
                max: 100
                value: 50
                on_touch_down: app.update_pwm1(self,value)
                on_touch_move: app.update_pwm1(self,value)
               
            Label:
                id: label_slider2
                text: '50'
            Slider:
                id: slider2
                orientation: 'horizontal'
                min: 0
                max: 100
                value: 50
                on_touch_down: app.update_pwm2(self,value)
                on_touch_move: app.update_pwm2(self,value)
               
            Label:
                id: label_slider3
                text: '50'
            Slider:
                id: slider3
                orientation: 'horizontal'
                min: 0
                max: 100
                value: 50
                on_touch_down: app.update_pwm3(self,value)
                on_touch_move: app.update_pwm3(self,value)
           

main.py

# Imports
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.togglebutton import ToggleButton
from kivy.uix.gridlayout import GridLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.image import Image
from kivy.uix.slider import Slider
from kivy.clock import Clock
from kivy.graphics import Color, Rectangle

import RPi.GPIO as GPIO

# initialize PWM duty cycle 50 from 100
pwm1 = 50
pwm2 = 50
pwm3 = 50

# if you press it output will be HIGH for 0.1 second standard
beepLedPin = 11  

# normal on/off triggered outputs with LED's in my example
gpio1 = 19
gpio2 = 21
gpio3 = 23

# output is HIGH while pressed, will fall LOW on release
pressedLedPin = 13

# outputs dimmed with PWM | sliders to dimm
pwmLedPin1 = 15
pwmLedPin2 = 12
pwmLedPin3 = 16

# initialize GPIO's as
GPIO.setmode(GPIO.BOARD)
GPIO.setup(beepLedPin, GPIO.OUT)
GPIO.output(beepLedPin, GPIO.LOW)
GPIO.setup(gpio1, GPIO.OUT)
GPIO.output(gpio1, GPIO.LOW)
GPIO.setup(gpio2, GPIO.OUT)
GPIO.output(gpio2, GPIO.LOW)
GPIO.setup(gpio3, GPIO.OUT)
GPIO.output(gpio3, GPIO.LOW)
GPIO.setup(pressedLedPin, GPIO.OUT)
GPIO.output(pressedLedPin, GPIO.LOW)
GPIO.setup(pwmLedPin1, GPIO.OUT)
GPIO.setup(pwmLedPin2, GPIO.OUT)
GPIO.setup(pwmLedPin3, GPIO.OUT)

# Start PWM outputs with 100Hz
RPWM1 = GPIO.PWM(pwmLedPin1, 100)
RPWM1.start(pwm1)
RPWM2 = GPIO.PWM(pwmLedPin2, 100)
RPWM2.start(pwm2)
RPWM3 = GPIO.PWM(pwmLedPin3, 100)
RPWM3.start(pwm3)


# pass this because we have our wagipi.kv file
class WagipiApp(App):
    pass

################### Now we need our helper functions ###################


    # Our callback when a button gets pressed
    def press_cb(self):
        print("Button pressed: ", self.text)
        # !!! NOT FINISHED !!!

    # Our callback when a button gets released | only relevant for our "pressedLedPin"
    def release_cb(self):
        print("Button released: ", self.text)
        # !!! NOT FINISHED !!!

    # Our help function to turn off our beepLedPin after the time schedule
    def beep_off():
        GPIO.output(beepLedPin, GPIO.LOW)
       
       
    # This is called when the slider for pwm1 is updated:
    def update_pwm1(self,value):
        global pwm1
        print("Dim pwm1 to:" + str(self.value))
        pwm1 = self.value
        RPWM1.ChangeDutyCycle(pwm1)
 

    # This is called when the slider for pwm2 is updated:
    def update_pwm2(self,value):
        global pwm2
        print("Dim pwm2 to:" + str(self.value))
        pwm2 = self.value
        RPWM2.ChangeDutyCycle(pwm2)

       
    # This is called when the slider for pwm3 is updated:
    def update_pwm3(self,value):
        global pwm3
        print("Dim pwm3 to:" + str(self.value))
        pwm3 = self.value
        RPWM3.ChangeDutyCycle(pwm3)
       
    def all_off(dt):
        GPIO.setup(pwmLedPin1, GPIO.IN)
        GPIO.setup(pwmLedPin2, GPIO.IN)
        GPIO.setup(pwmLedPin3, GPIO.IN)

    def all_on(dt):
        GPIO.setup(pwmLedPin1, GPIO.OUT)
        GPIO.setup(pwmLedPin2, GPIO.OUT)
        GPIO.setup(pwmLedPin3, GPIO.OUT)




meineAnwendung=WagipiApp()
print(meineAnwendung)
meineAnwendung.run()

[Geekademy]

Hi, do not put self in a function's args list (in the .kv file) when calling a
function.

A python course might help with these types of errors.


On 2016-11-22 15:19, 7o 7 wrote:

[7o 7]

But how i can do then? i won't work in any way thats why i tried also with self :/

not matter if i put in *args or anything it always says it don't knows value, or it wants more arguments

[Geekademy]

Remove the self(s) from the .kv file, add them to the .py file.


On 2016-11-23 02:41, 7o 7 wrote:

[7o 7]

I already tried to do this, but it does still not work :/