Python Help

[coderrquitsreality]

Hi, I need help figuring out why Switch 3 is being printed no matter what. It does this properly for switch 1 and 2, but continues to print switch 3 as on, when it is off. Here is the picture of my code, sorry it’s not really legible...

 

EDIT: These are generic brand light switches from Walmart for $0.67 a piece, couldn’t resist. They work well too.

 

[mahyar]

use different variable name fo input_value like input_value1 , input_value2,input_value3

and after the first if statement use elif

like this

input_value1
if input_value1 == false :
whatever
input_value2
elif input_value2 == false :
whatever

input_value3
elif input_value3 == false :
whatever

 

[coderrquitsreality]

1 minute ago, mahyar said:

use different variable name fo input_value like input_value1 , input_value2,input_value3

and after the first if statement use elif

like this

 

*snip*

Let me try that

[coderrquitsreality]

Wait... now I am using the RPi.GPIO library, if I use those other variables, it’s now undefined so now what

[mahyar]

1 minute ago, TheCoder2019 said:

Wait... now I am using the RPi.GPIO library, if I use those other variables, it’s now undefined so now what

just use the output of library directly

dont add that input value thingy

[coderrquitsreality]

How do I do that? I’m still kind of learning Python

[mahyar]

Just now, TheCoder2019 said:

How do I do that? I’m still kind of learning Python

quote me

remove input value and use GPIO.input(switchx)

[coderrquitsreality]

Like this?

 

GPIO.input(switchX, HIGH)

 

[mahyar]

Just now, TheCoder2019 said:

Like this?

 

GPIO.input(switchX, HIGH)

 

no 

if gpio.input(switchx) == false :

[coderrquitsreality]

Just now, mahyar said:

no 

if gpio.input(switchx) == false :

I’m gonna try it... I’ll try to be back in 5 mins?

[mahyar]

Just now, TheCoder2019 said:

I’m gonna try it... I’ll try to be back in 5 mins?

btw use elif as i showed above

[coderrquitsreality]

Just now, mahyar said:

btw use elif as i showed above

OK

[coderrquitsreality]

So I did elif statements and the terminal is still getting spammed by saying switch 3 is on

 

Is this code correct?

[mahyar]

1 minute ago, TheCoder2019 said:

So I did elif statements and the terminal is still getting spammed by saying switch 3 is on

 

Is this code correct?

well idk much more 

i usually code this sort of stuff c/c++ those were only things i could see wrong with your code

[coderrquitsreality]

I DID notice when I switched Switch 3 to True, it would stop, but the light switch is now inverted which will annoy me. Anything there?

[mahyar]

5 minutes ago, TheCoder2019 said:

I DID notice when I switched Switch 3 to True, it would stop, but the light switch is now inverted which will annoy me. Anything there?

wait are you sure that led you are using is good? did you use pullup resistors? how are switches wired?

[coderrquitsreality]

Let me draw it. This may take a while

[coderrquitsreality]

@mahyar K. Here it is. I am not using pullup resistors because they worked fine without, with no bouncing

 

 

[mahyar]

2 minutes ago, TheCoder2019 said:

@mahyar K. Here it is. I am not using pullup resistors because they worked fine without, with no bouncing

 

 

rpi has internal pullup resistors enablee them

[coderrquitsreality]

How? sudo raspi-config? Or another bash command?

[mahyar]

1 minute ago, TheCoder2019 said:

How? sudo raspi-config? Or another bash command?

none you have to do it in python

google it

[coderrquitsreality]

Most of what I find is in Java. Do you mind sourcing the code for me? Sorry for being a pain, I’ll follow for your troubles with me

[mahyar]

1 minute ago, TheCoder2019 said:

Most of what I find is in Java. Do you mind sourcing the code for me? Sorry for being a pain, I’ll follow for your troubles with me

ok

[mahyar]

read this carefully 

https://raspi.tv/2013/rpi-gpio-basics-6-using-inputs-and-outputs-together-with-rpi-gpio-pull-ups-and-pull-downs

[coderrquitsreality]

That’s literally what I’ve just read 5 mins ago. It works well, no repeated echo. I would call this thread a success. Thank you for sticking around the 1 hour and 30 some minutes you did