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by cae2100
Thu Jun 13, 2013 6:46 am
Forum: Other projects
Topic: PiSB
Replies: 13
Views: 2379

Re: PiSB

depends on if it is mainly surface mount or through hole items, if all surface mount, I'd just buy it. from the looks of it, it looks all surface mount, so I'd probably just purchase it. I understand the concept of what you want with the LED low battery warning idea, but the LED would just be there ...
by cae2100
Wed Jun 12, 2013 7:02 am
Forum: Other projects
Topic: PiSB
Replies: 13
Views: 2379

Re: PiSB

I think a full battery meter is a bit overkill, but maybe a little blinking LED that displays when the batteries are getting to a critical low would be nice. Another idea is maybe relay based on/off switch to cut the power automatically when it's shut down, and make it into a shield for the rpi. One...
by cae2100
Wed Jun 12, 2013 6:56 am
Forum: Other projects
Topic: All-in-One PI Powered PC
Replies: 5
Views: 2341

Re: Apple eMac + Raspberry PI = Apple PI?

two words, huge headache... :P the internals could be modified to use vga from the display port, but you would still need hdmi to vga converter, and there's all of the modding of everything and risk of death. If that doesnt scare you enough, you should be interested in this then: http://www.ierna.co...
by cae2100
Mon Jun 10, 2013 3:09 am
Forum: Other projects
Topic: Could I fit an RPi in a Wii U gamepad?
Replies: 1
Views: 1674

Re: Could I fit an RPi in a Wii U gamepad?

not sure if it would fit, but you have to think about the battery charger, rpi, some circuitry to control stuff like battery stuff and control the screen, and all of the other stuff that would be needed to get the rpi hooked up inside of it like the dc-dc converter. other than that, you can hook the...
by cae2100
Mon Jun 10, 2013 3:00 am
Forum: Other projects
Topic: PiSB
Replies: 13
Views: 2379

Re: PiSB

cool, cant wait to see what the final version looks like. I have a bunch of devices that are lower powered than the rpi, and use the same usb plug to charge it, so it could be used for almost anything, also another idea is maybe a large solar cell hooked up to it to keep the thing running during the...
by cae2100
Sun Jun 09, 2013 11:47 pm
Forum: Python
Topic: Control cursor with python
Replies: 3
Views: 5228

Re: Control cursor with python

for linux, there is a way to do it, read through this, this is almost exactly what you are looking for. http://tjjr.fi/sw/python-uinput/ and this: https://github.com/tuomasjjrasanen/python-uinput/blob/master/examples/mouse.py Ive used it before to create a GPIO joystick, but Ive seen multiple projec...
by cae2100
Sun Jun 09, 2013 11:38 pm
Forum: Other projects
Topic: High temperature sensors
Replies: 3
Views: 5561

Re: High temperature sensors

another option is just use an A/D converter and hook it to a thermocouple, those are used for really high temperatures like what your talking about where things can get red hot.
by cae2100
Sun Jun 09, 2013 11:29 pm
Forum: Other projects
Topic: PiSB
Replies: 13
Views: 2379

Re: PiSB

looks really cool, will you release the schematics and such for it, or just do it as a private product to sell?
also, from your testing, how long does the normal 7.4v battery last with running the rpi?
by cae2100
Sun Jun 09, 2013 3:38 pm
Forum: Other projects
Topic: Using the R-PI as a motherboard....
Replies: 8
Views: 2014

Re: Using the R-PI as a motherboard....

I use my rpi as a desktop system most of the time, and once it's all set up, it actually does run fairly quick. I usually use mine to look stuff up online and play music on, also download stuff on since it's so lightweight on power usage. Also, comparing it to a netbook, I have an ARM netbook, and i...
by cae2100
Sat Jun 08, 2013 5:42 am
Forum: Other projects
Topic: atrix lapdock keyboard problem
Replies: 3
Views: 3143

Re: atrix lapdock keyboard problem

Im almost positive that it's a 104 key keyboard, US generic layout (the one at very top)
by cae2100
Wed Jun 05, 2013 7:55 pm
Forum: Python
Topic: DC Motor
Replies: 12
Views: 2299

Re: DC Motor

Ian is probably right, and to fix that issue, just take the outputs going from the rpi to the inputs of the driver IC, just tie the rpi input of the 754410 to ground via a 10k ohm resistor. so it'll just the same as you have it, but the input of the 754410 chip, just tie them to ground using 10k ohm...
by cae2100
Tue Jun 04, 2013 10:00 pm
Forum: Other projects
Topic: Complete webserver/media server
Replies: 2
Views: 1540

Re: Complete webserver/media server

I would also love to see a guide to setting everything up also. Ive done http/ftp/torrent servers on my rpi, but the others would be interesting to see how they're set up.
by cae2100
Tue Jun 04, 2013 9:57 pm
Forum: Python
Topic: pygame / putty / unable to open console
Replies: 5
Views: 11721

Re: pygame / putty / unable to open console

you could also use this in command line before starting the program, or somewhere on the rpi bootup:

Code: Select all

export DISPLAY=:0
and it'll just post the display up on the screen attached to the rpi itself.
by cae2100
Tue Jun 04, 2013 3:14 am
Forum: Other projects
Topic: All-in-One PC (I need help!)
Replies: 1
Views: 616

Re: All-in-One PC (I need help!)

It runs fine for normal stuff like web browsing, just install chromium-browser and libreoffice, and you'll be set on all of the browsing and office documents stuff. I use mine all the time for downloading torrents of different linux distros or whatever I want to, looking stuff up online, and I have ...
by cae2100
Mon Jun 03, 2013 7:14 pm
Forum: Python
Topic: Working with Geany
Replies: 5
Views: 3356

Re: Working with Geany

yes, geany can easily be used to call the python programs as root without needing to run geany as root, here's a guide. http://openmicros.org/index.php/articles/94-ciseco-product-documentation/raspberry-pi/218-2-raspberry-pi-gpio-inputs-in-python just look around 2/3rd way down the page and it'll sh...
by cae2100
Mon Jun 03, 2013 4:22 am
Forum: Python
Topic: DC Motor
Replies: 12
Views: 2299

Re: DC Motor

the code I modified at the top, just paste that there, it sets both pins low, then write your program after that
by cae2100
Mon Jun 03, 2013 2:50 am
Forum: Python
Topic: A resetable background timer?
Replies: 8
Views: 4636

Re: A resetable background timer?

you could create two while loops, first one encloses the whole program, runs indefenitely, has command to set output pin low, contains time.sleep(1) statement to count up, through a varable and poll to see if the input pin has been pressed, and if so, tell it to reset the varable to zero. then the s...
by cae2100
Mon Jun 03, 2013 2:32 am
Forum: Python
Topic: network mac address
Replies: 3
Views: 1865

Re: network mac address

I know that the one linux command, iwlist, itll show the access point names and mac addresses on it, maybe just call it from your linux app and feed the output from it into varables. Maybe just take the list of the computers that connect to it and have it use it as a dictionary search though those v...
by cae2100
Mon Jun 03, 2013 2:27 am
Forum: Python
Topic: DC Motor
Replies: 12
Views: 2299

Re: DC Motor

yea, what I was talking about was starting off by setting all pins low, since they seem to be default high, just manually setting them low when you init the program, and then it wont be on and wont be inverted like your experiencing when you start switching them.
by cae2100
Sun Jun 02, 2013 7:53 pm
Forum: Python
Topic: DC Motor
Replies: 12
Views: 2299

Re: DC Motor

you just set them all low through the software, just use

Code: Select all

sudo gpio mode 7 out # set up pins
sudo gpio mode 0 out
sudo gpio write 7 0 
sudo gpio write 0 0 
by cae2100
Sun Jun 02, 2013 6:42 pm
Forum: Python
Topic: DC Motor
Replies: 12
Views: 2299

Re: DC Motor

only thing I can think of is that when they're initialized, they go high, and when you turn off a pin, it causes the motor to run since you dont have both pins as high, and when you set it high again, it has high in on both pins causing it to not move at all, or be in a break state. Maybe try settin...
by cae2100
Tue May 28, 2013 7:54 pm
Forum: Python
Topic: RPI NES, buttons?
Replies: 1
Views: 835

Re: RPI NES, buttons?

look between the electrolytic capacitor and the usb power connector, around that area is two little pin headers that isnt soldered in, if you short those together, it'll reset the rpi, it's what those pins are designed for. It was never added in, but it's easy enough to just carefully solder two pin...
by cae2100
Wed May 22, 2013 2:59 am
Forum: Other projects
Topic: Portable RPi
Replies: 2
Views: 743

Re: Portable RPi

alot of people that Ive seen have used the atrix lapdock, it's a lcd screen, keyboard, and built in battery pack designed for a cell phone, but easily can be hooked up to the raspberry pi and run from that for a few hours. I think they said the battery in it lasts for around 4-5 hours usually.
by cae2100
Sun May 19, 2013 9:26 am
Forum: Other projects
Topic: Driving a NASA Countdown Clock
Replies: 2
Views: 1679

Re: Driving a NASA Countdown Clock

from what I understand of looking at the stuff on IRIG-B, it's just a 1Khz frequency that the internal circuitry uses to keep the time, so you couldnt really use it to turn it into a big display without bypassing the internal electronics and making new driver boards for the LEDs.
by cae2100
Sun May 19, 2013 9:22 am
Forum: Other projects
Topic: The Pi in my daypack - A Guerilla Marketing Project
Replies: 2
Views: 1215

Re: The Pi in my daypack - A Guerilla Marketing Project

neat idea really, I thought of doing this with my netbook/raspberry pi, but instead of movie/info and such, just make it a mobile wifi dead-drop spot.

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