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by Fr4gg0r
Mon Oct 13, 2014 4:18 pm
Forum: Other projects
Topic: Emulate a USB keyboard.
Replies: 18
Views: 43869

Re: Emulate a USB keyboard.

Anyone trying to get this working for the model A?
There are now patches available for certain android devices, https://github.com/pelya/android-keyboard-gadget .
by Fr4gg0r
Thu May 29, 2014 1:29 pm
Forum: Other projects
Topic: SD Card Cutting Tutorial
Replies: 25
Views: 45481

Re: SD Card Cutting Tutorial

http://www.raspberrypi.org/forums/downl ... hp?id=6964

According to Wikipedia an SD card has 9 contacts, which my card has. An MMC has 7.
by Fr4gg0r
Thu May 29, 2014 12:51 pm
Forum: Other projects
Topic: SD Card Cutting Tutorial
Replies: 25
Views: 45481

Re: SD Card Cutting Tutorial

It's an SD card
by Fr4gg0r
Wed May 28, 2014 4:58 pm
Forum: Other projects
Topic: SD Card Cutting Tutorial
Replies: 25
Views: 45481

Re: SD Card Cutting Tutorial

So cost of new micro sd card + adapter < 0 .. :)
by Fr4gg0r
Wed May 28, 2014 4:04 pm
Forum: Other projects
Topic: SD Card Cutting Tutorial
Replies: 25
Views: 45481

Re: SD Card Cutting Tutorial

Has anyone tried with a more expensive card, for example a 32GB card from Samsung?
I have the model MB-SSBGAEU, as you can see on the photo, the inner part is completely sealed. Apparently the card is waterproof..
by Fr4gg0r
Sat May 24, 2014 6:12 pm
Forum: General programming discussion
Topic: Control DAC onboard of RaspberryPi
Replies: 2
Views: 1235

Control DAC onboard of RaspberryPi

Hi,

I am wondering can we freely control the DAC, which is used for composite video output? (Of course assuming, no video is being output over the RCA connector, but who uses that anyway :roll: )
by Fr4gg0r
Sat May 24, 2014 1:07 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Measure Voltage by using resistors and capacitors
Replies: 10
Views: 2214

Re: Measure Voltage by using resistors and capacitors

EDIT Of course such a voltage would have to be >1.7V ( threshold, approx), and either below 3.3V or scaled/limited to prevent GPIO damage.... I don't think it needs to be below 3.3V, as long as we pull the pin to GND again after threshold is reached, we should be fine. :) Just need to make sure, th...
by Fr4gg0r
Fri May 23, 2014 5:40 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Measure Voltage by using resistors and capacitors
Replies: 10
Views: 2214

Re: Measure Voltage by using resistors and capacitors

All examples I found so far estimate the value of a resistor, I however would like to estimate an analog voltage. Do you have any examples for that?
by Fr4gg0r
Fri May 23, 2014 4:38 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Measure Voltage by using resistors and capacitors
Replies: 10
Views: 2214

Measure Voltage by using resistors and capacitors

Hi, I am wondering if one could estimate an analog voltage by connecting 2 resistors and 1 capacitor to an input pin, then connecting these to the signal to be measured (see attached image). My idea was to empty the capacitor by pulling it to ground, then letting the pin floating until it reaches lo...
by Fr4gg0r
Sun May 18, 2014 12:02 am
Forum: Automation, sensing and robotics
Topic: use Raspberry as a USB Keyboard
Replies: 13
Views: 4354

Re: use Raspberry as a USB Keyboard

USB would require 2 pins, so no problem at all. Also it is surely possible to emulate USB through GPIO, hence the name general purpose i/o. I see two possible problems: The PI can only pull up to 3V instead of 5V. Also you might run into timing issue when using an operating system. Instead of a Ardu...
by Fr4gg0r
Mon Sep 02, 2013 6:41 pm
Forum: Camera board
Topic: 360° lens (kogeto iphone lens) for pi camera
Replies: 0
Views: 906

360° lens (kogeto iphone lens) for pi camera

Hi, After I saw these http://www.kscottz.com/dewarped-panoramic-images-from-a-raspberrypi-camera-module/ http://imgur.com/a/4ptjR , I looked on ebay and found one shop selling them for 20€ including shipping, so I went for it. ;) The interesting question is: how can I get a player like this http://w...
by Fr4gg0r
Mon Sep 02, 2013 6:39 pm
Forum: Camera board
Topic: ROS node for camera module
Replies: 15
Views: 20394

Re: ROS node for camera module

Have you tested 1920*1080 at 30Hz? Gstreamer won't do that resolution at 30Hz :o I recently created a node to interface servoblaster via ros, a wiki or common github repo for ros nodes designated for rpi would be nice. Edit: Ok, you never said it would reach 30Hz at 1920*1080 -_- Edit2: Took a look ...
by Fr4gg0r
Wed Jul 17, 2013 7:16 pm
Forum: Gaming
Topic: mupen64plus 2.0. Can someone compile it for the Pi?
Replies: 7
Views: 1609

Re: mupen64plus 2.0. Can someone compile it for the Pi?

ulysess The problem with Linux Mupen64 is the graphics plugins are Open GL NOT Open GLES which creates a major performance issue in that the ARM CPU would be responsible for emulating everything! If an Open GLES plugin was produced it may be a possibility, but this would require a great deal of wor...
by Fr4gg0r
Tue Mar 26, 2013 1:17 am
Forum: Automation, sensing and robotics
Topic: Driving multiple servos from the RaspberryPi
Replies: 209
Views: 101755

Re: Driving multiple servos from the RaspberryPi

Hi,
how would you recommend accessing your servod driver from C?

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