Passing Variable to Function

2016-10-05 Thread John McKenzie
Hello, all. I have a function that takes three arguments, arguments to express an RGB colour. The function controls an LED light strip (a Blinkytape). Sometimes I might need to be change what colour is sent to the function, so I set a variable with the idea that I can change just the variab

Re: Passing Variable to Function

2016-10-07 Thread John McKenzie
Brendan and Alister, thank you both for responding. I am very inexperienced with python, but not new to computers so on my own I realized the strings vs number mistake. (I seem to work with and learn about Python for a few weeks at a time with 6 to 12 months in between. Need to change that a

Python and GPSD

2016-05-21 Thread John McKenzie
Good day, all. I need help using the Python bindings for GPSD. Specifically, I would like to take a latitude reading, put it in a variable and use it later. The problem is that every example I see involves constantly taking changing readings. That part I have working for myself by following

Keypress Input

2015-06-03 Thread John McKenzie
Hello. Very new to Python and looking for some basic help. Would like a set-up where something happens when a key is pressed. Not propose a question, have the user type something, then hit return, then something happens, but just the R key is pressed, something happens, then something else

Re: Keypress Input

2015-06-06 Thread John McKenzie
Laura and Gary, thank you for your replies. I have three physical buttons connected to a Kade device emulating a keyboard. These buttons control an LED light strip. So there is no screen, so a GUI did not cross my mind. I thought it made sense as it is easily done by other scripting languages

Re: Keypress Input

2015-06-14 Thread John McKenzie
from Tkinter import * from blinkstick import blinkstick led = blinkstick.find_first() timered = 0 timeyellow = 0 timeblue = 0 colour = None root = Tk() root.title('eFlag 1') def red1(event): colour = 1 def yellow1(event): colour = 2 def blue1(event): colour = 3 root.bind_all(

Re: Keypress Input

2015-06-14 Thread John McKenzie
Thank to the others who joined in and posted replies. Michael, your assumption is correct. To quote my original post, "and I want this working on a Raspberry Pi." Doing a superficial look at curses and getch it looks excessively complicated. I was under the impression it was not multi-platfo

Re: Keypress Input

2015-06-16 Thread John McKenzie
It appears that one of my posts was cut off. It contains my script but none of the lengthy text in front of it. To summarize, my set-up consists of three "massive arcade buttons" from Adafruit. one red, one blue, one yellow. They are connected to a Kade Device that is connected to a Raspberr

Re: Keypress Input

2015-06-16 Thread John McKenzie
That was the impression I got reading some comments people made online and doing research, so I focused on tkinter. As I mentioned in the 4th sentence of the post you quoted I discovered that was not the case, but by then I had already done some work on the tkinter script so I kept with it.

Re: Keypress Input

2015-06-20 Thread John McKenzie
Christian, are you suggesting I learn to do everything perfectly before I ask how to do everything perfectly? Despite your tone and insults I honestly appreciate the response. I know what to focus on and less than 5 minutes from now I will be looking for e- books on the specific subjects you

Re: Keypress Input

2015-06-20 Thread John McKenzie
Guys, thanks for the various code examples for GPIO and the warning about debouncing issues. I am still considering going the route of more complex wiring and doing it a more traditional GPIO way. -- https://mail.python.org/mailman/listinfo/python-list

Re: Keypress Input

2015-07-15 Thread John McKenzie
Hello, all. Thanks to everyone who responded to my post. I decided to make sure I had something that worked with what I have now and used Curses to finish it. However, it turns out that the extra work and problems with using GPIO pins and wiring up controllers that way is a small amount of

RPI.GPIO Help

2015-08-16 Thread John McKenzie
Hello, all. I am hoping some people here are familiar with the RPi.GPIO python module for the Raspberry Pi. Very new to Python and electronics. Not to computing in general though. I posted for help about accepting key presses and then discovered that wiring up buttons directly to the Pi was

Re: Keypress Input

2015-08-16 Thread John McKenzie
Thanks again to everyone who tried to help. Michael, I especially appreciate your encouragement and chiming in to point out that telling newbies to learn everything there is before posting question was not helpful in getting more people using Python. Have the Pi wired up directly to the but

Re: RPI.GPIO Help

2015-08-20 Thread John McKenzie
Thanks for the reply. Also, thanks to Laura who replied via email. Tried a bunch of things based off these comments and I always ended up with one of two situations, the channel conflict error, or an instant run and quit issue. This new version of the code runs but is unresponsive. I removed

Re: RPI.GPIO Help

2015-08-28 Thread John McKenzie
Thanks for the replies, everyone. Two of you suggested I ask in comp.sys.raspberry-pi. We leave in a world where people cannot tell you the difference between the world wide web and the Internet and tech support for my ISP once told me in response to mentioning that thei news server was not

Re: RPI.GPIO Help

2015-08-31 Thread John McKenzie
Dennis, Hakugin, I tried your scripts and had to alter a typo here or there, but once the basic errors disappeared I had the same error message. "Conflicting edge detection already enabled for this GPIO channel". As much as I despise web based bulletin board systems I registered on the Rasp

Re: RPI.GPIO Help

2015-09-02 Thread John McKenzie
Hakugin: Thanks for the correction. Someone elsewhere showed me example code that was very close to yours, with that being the main difference. His gave an error message that red_button was undefined so I moved the code block below the callbacks. After that it ran without producing errors but

Re: RPI.GPIO Help

2015-09-09 Thread John McKenzie
Hello. As per the suggestion of two of you I went to the Raspberry Pi newsgroup. Dennis is also there and has been posting in response to my problems. Between there and the Raspberry Foundation website I discovered that my wiring did not match my code and changed all PUD_DOWN to PUD_UP and

Re: RPI.GPIO Help

2015-09-10 Thread John McKenzie
MRAB: Thanks for replying. I got so hyper focused on solving my hardware problems, and excited that I did, that I forgot details from previous comments. Thanks for your post. Off to make things global... -- https://mail.python.org/mailman/listinfo/python-list

Re: RPI.GPIO Help

2015-09-11 Thread John McKenzie
Hello. Thanks to the help of people here and in other newsgroups I seem to have something working doing the basics. (Buttons work, colours light up appropriately.) When I followed MRAB's instructions and read about scopes of variables that solved my most recent problem, but it introduced a

Re: RPI.GPIO Help

2015-09-12 Thread John McKenzie
Hello, there. MRAB, thank you for teaching me proper Python syntax for how I tried to use the or operator. Dennis, I must have learned allot recently as I believe I understood 99% of that code. I see how it is not just more advanced, but actually better than what I had. However, line 47 (c