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by drice
Sat Jul 16, 2016 5:16 pm
Forum: Troubleshooting
Topic: [RPi3] SSH not working via wifi
Replies: 155
Views: 102683

Re: [RPi3] SSH not working via wifi

Can confirm two things:

1. This issue is specific to certain routers.
2. Enabling WMM on the problematic router resolved the issue.
by drice
Fri Apr 15, 2016 5:54 am
Forum: Python
Topic: Help with my python code
Replies: 3
Views: 674

Re: Help with my python code

Based on your description of the behavior, I'm guessing your indented code looks like this. from sense_hat import SenseHat sense = SenseHat() sense.clear() import datetime x, y, z = sense.get_accelerometer_raw().values() while x<3 and y<3 and z<3: x, y, z = sense.get_accelerometer_raw().values() sen...
by drice
Fri Apr 15, 2016 5:18 am
Forum: Beginners
Topic: Getting IceWeasel caused me to be unable to log in.
Replies: 15
Views: 2038

Re: Getting IceWeasel caused me to be unable to log in.

Several "no space left on device" errors, which made absolutely no sense whatsoever, there was plenty of goddamn space. Is this happening before you try to install Iceweasel? It sounds like you are getting this error when you try to upgrade a fresh OS install. If that's the case, the problem is not...
by drice
Sun Apr 03, 2016 6:29 am
Forum: General discussion
Topic: Help Pythone Code
Replies: 6
Views: 871

Re: Help Pythone Code

Let me guess. You're using an HC-SR04 ultrasonic rangefinder module and you want to display a video any time an object is moved from its initial position. Your code will not work at all for the following reasons: It is not syntactically correct. Not even close. It contains obvious logic errors. Pyth...
by drice
Sun Apr 03, 2016 6:08 am
Forum: General discussion
Topic: Need some help!- project!- IMPORTANT!
Replies: 28
Views: 3793

Re: Need some help!- project!- IMPORTANT!

The instructions are for SysV init. Your Pi is likely using systemd. You will need to modify the scripts as necessary. This will require research and learning on your part. Surely this project is about more than simply plugging a speaker into the Pi and typing pre-built commands from a web site. Thi...
by drice
Tue Sep 22, 2015 2:35 am
Forum: General discussion
Topic: Lost HDMI output after apt-get dist-upgrade
Replies: 3
Views: 646

Re: Lost HDMI output after apt-get dist-upgrade

For whatever it's worth, I ran rpi-update and that fixed it. Must have been something to do with a driver maybe?
by drice
Tue Sep 22, 2015 12:51 am
Forum: General discussion
Topic: Lost HDMI output after apt-get dist-upgrade
Replies: 3
Views: 646

Re: Lost HDMI output after apt-get dist-upgrade

Unfortunately that didn't work. It still just displays a black screen. But omxplayer still works. I think that's a major clue. Any idea what was changed regarding HDMI output within the past couple of months? I think knowing what's changed would give a major clue as to why it's stopped working. I kn...
by drice
Sat Sep 19, 2015 5:21 pm
Forum: General discussion
Topic: Lost HDMI output after apt-get dist-upgrade
Replies: 3
Views: 646

Lost HDMI output after apt-get dist-upgrade

HDMI output was working perfectly until I just ran apt-get dist-upgrade. Now I can only get output with hdmi_safe=1 in config.txt. Can someone point me to an overview of things that recently changed in relation to HDMI? The TV is getting a signal, but it's just showing a black screen. Interestingly,...
by drice
Sat Jun 20, 2015 5:44 am
Forum: General discussion
Topic: Tic Tac Toe Game plays it's self!
Replies: 14
Views: 1984

Re: Tic Tac Toe Game plays it's self!

Why am I getting an Error? What did I do wrong? It looks like your primary mistake is that you're trying to learn how to program by copying a bunch of code and then making various changes to see what happens. Try reading a book that will teach you the fundamental skills so you can actually understa...
by drice
Mon May 18, 2015 7:39 pm
Forum: General discussion
Topic: Raspbian 15-05-05 NOT assigning an ip address
Replies: 25
Views: 12651

Re: Raspbian 15-05-05 NOT assigning an ip address

My router is set up to configure the PI's network based on the Pi's MAC address (IP-MAC mapping/ reserved IP addressing) but that is not happening. Edit /etc/dhcpcd.conf Comment out duid and uncomment clientid . Save the file and restart the service or the whole Pi. It looks like they recently chan...
by drice
Thu Apr 02, 2015 11:09 pm
Forum: General discussion
Topic: Can the Raspberry Pi Do Everything a Arduino Can?
Replies: 13
Views: 3412

Re: Can the Raspberry Pi Do Everything a Arduino Can?

What can you do with a Arduino that you can't do with a pi? Deterministic real-time operations. The Pi runs an operating system and uses a complex CPU. That can cause delays in running your code. Depending on what you do, you might never notice this, but the Arduino is fully predictable as to when ...
by drice
Thu Apr 02, 2015 7:03 am
Forum: General discussion
Topic: Can the Raspberry Pi Do Everything a Arduino Can?
Replies: 13
Views: 3412

Re: Can the Raspberry Pi Do Everything a Arduino Can?

What can you do with a Arduino that you can't do with a pi? Deterministic real-time operations. The Pi runs an operating system and uses a complex CPU. That can cause delays in running your code. Depending on what you do, you might never notice this, but the Arduino is fully predictable as to when ...
by drice
Fri Jan 02, 2015 3:59 am
Forum: Beginners
Topic: Star Trek LED Blink
Replies: 1
Views: 445

Re: Star Trek LED Blink

This is very good for a first project. Here are some things (in no particular order) you can look at to improve your skills: It's good that you assigned variables for the I/O ports where the LEDs are located instead of just putting the numbers into the GPIO call every time. Python doesn't have the c...
by drice
Fri Dec 26, 2014 11:42 pm
Forum: General discussion
Topic: What died in my Pi?
Replies: 7
Views: 920

Re: What died in my Pi?

Maybe the SD card doesn't make a proper connection. There are known problems with some SD cards bending / warping. To check this you could put some pressure on the card (pushing it towards the PCB) to ensure proper contact. That was the problem. I found the troubleshooting guide and read up on the ...
by drice
Fri Dec 26, 2014 11:25 pm
Forum: General discussion
Topic: What died in my Pi?
Replies: 7
Views: 920

Re: What died in my Pi?

Correct. I also tried it with a different power supply and got virtually the same voltage (4.84V).
by drice
Fri Dec 26, 2014 11:22 pm
Forum: General discussion
Topic: What died in my Pi?
Replies: 7
Views: 920

Re: What died in my Pi?

Both model B, both using the "official" RPi power supply. Voltage between TP1 and TP2 is 4.85V.
by drice
Fri Dec 26, 2014 11:11 pm
Forum: General discussion
Topic: What died in my Pi?
Replies: 7
Views: 920

What died in my Pi?

One of my Raspberry Pis is dead, and I'm curious as to what went wrong. When I connect power, the PWR LED comes on, and the ACT LED appears to glow very faintly. The same power supply and SD card work perfectly on another Pi, so I'm pretty sure this one is dead. But what would cause these particular...
by drice
Tue Dec 23, 2014 8:53 pm
Forum: General discussion
Topic: Powering on/off Sainsmart 7" screens
Replies: 7
Views: 1983

Re: Powering on/off Sainsmart 7" screens

Looking at the data sheet for the controller, it appears that pin 3 of the inverter connection controls the backlight. Have you tried disconnecting pin 3 to confirm if this turns the backlight off, then if it does, you could switch that line to turn the backlight on and off.
by drice
Sat Dec 20, 2014 1:18 am
Forum: Graphics, sound and multimedia
Topic: Python script to display photos and videos
Replies: 1
Views: 3859

Python script to display photos and videos

Here is a Python script I put together to display photos and videos on a connected TV. It should be mostly self-explanatory, and the main configuration section is marked with comments. It will cycle through a collection of photos and videos in specified folders and with specified names that match a ...

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