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by tito-t
Sun Nov 13, 2016 6:29 pm
Forum: Automation, sensing and robotics
Topic: MCP23017 device address pins switchable
Replies: 6
Views: 1343

Re: MCP23017 device address pins switchable

thank you! Unfortunately I can't recognize it clearly - 10k pulldown to GND is like I assumed, then each switch via a capacitor (size=?) to GND - but what is the medium pin for a pullup? It's strangely between 3.3V and 5V, but what is it actually? If it's also 3.3V then it would also match my chart.
by tito-t
Sun Nov 13, 2016 6:01 pm
Forum: Automation, sensing and robotics
Topic: MCP23017 device address pins switchable
Replies: 6
Views: 1343

MCP23017 device address pins switchable

hello, so far I was using 1 MCP23017 with all address pins connected to GND which worked fine. Now I want to join a 2nd and perhaps a 3rd one to the bus, and for that purpose I want to make the device address pins switchable by jumper switches. I'm not quite sure but I assume that one could make it ...
by tito-t
Sun Nov 13, 2016 12:24 pm
Forum: Beginners
Topic: i2c pin availability
Replies: 9
Views: 1981

Re: i2c pin availability

I'm using the RPi 3B as a solar array monitor/controller. This requires that I uses several i2c devices. The issue is only one device can be connected to the RPi. This is a hardware problem. Has anyone found a suitable work around, other than the use of solder and wires? Is there a mechanical faste...
by tito-t
Sun Nov 13, 2016 10:50 am
Forum: Beginners
Topic: Rpi UART to Arduino.
Replies: 16
Views: 6793

Re: Rpi UART to Arduino.

I once had a similar issue in a C/C++ program but I could resolve this by help from a different (German) forum, using a proprietary communication program which is more safe in case of transmission failures. The Pi was not able to do it alone as I have 6 pwm motors at L298 H-Bridges (3 pins each) fea...
by tito-t
Sun Nov 13, 2016 10:34 am
Forum: General discussion
Topic: My 9 month old Pi3 is dead, who do I contact for warranty?
Replies: 20
Views: 4880

Re: My 9 month old Pi3 is dead, who do I contact for warrant

poor pitiable American customers ;)
In Germany there are 2 years warranty period guaranteed for brand-new items (1 year for second hand) ;)
by tito-t
Sun Nov 13, 2016 10:31 am
Forum: Beginners
Topic: from Pi: access files located on PCs in Windows workgroup
Replies: 27
Views: 10313

Re: from Pi: access files located on PCs in Windows workgr

I have mostly Windows 7 pro clients, no firewall active for my home net (trusted network). I am using Jessie (Noobs) on my Pi, and I am quite new to the Pi and Linux. So how exactly can I browse with my Pi through my home network (PCs, drives, directories, files)? I didn't find a solution so far by ...
by tito-t
Sun Nov 13, 2016 10:19 am
Forum: Beginners
Topic: omxplayer-how to change volume while playing?
Replies: 10
Views: 4084

Re: omxplayer-how to change volume while playing?

when double-clicking on a wav file no terminal windows is opend and/ or in focus. It is just playing the sound. Also xterm -e omxplayer does not resolve this, still no loudness control possible by + or - . So what I personally need is a way to associate my wav files with a program which a) automatic...
by tito-t
Sat Nov 12, 2016 6:41 pm
Forum: Beginners
Topic: omxplayer-how to change volume while playing?
Replies: 10
Views: 4084

Re: omxplayer-how to change volume while playing?

about omxplayer, that's exactly the way I have set my preferences, it plays all wav by doubleclick on the wav file in the filemanger, but I am not able to change loudness while playing (+, - or abort by ESC).

Is that possible by audacious instead?
by tito-t
Sat Nov 12, 2016 5:42 pm
Forum: Beginners
Topic: from Pi: access files located on PCs in Windows workgroup
Replies: 27
Views: 10313

Re: from Pi: access files located on PCs in Windows workgr

nothing available? e.g., like the file manager which also scans for network PCs?
(Perhaps like the Windows explorer which is able to scan both for local and network computers and ressources, even if not connected or logged in to?)
by tito-t
Sat Nov 12, 2016 4:57 pm
Forum: General discussion
Topic: My 9 month old Pi3 is dead, who do I contact for warranty?
Replies: 20
Views: 4880

Re: My 9 month old Pi3 is dead, who do I contact for warrant

Due to EU Common Market laws the customer has a contract with the dealer (the shop), where he paid the money, not with the manufacturer. Thus the dealer (the shop) is responsible for guarantee or warranty issues. Not sure if GB or UK already has different laws or what will happen after Brexit though...
by tito-t
Sat Nov 12, 2016 1:24 pm
Forum: Beginners
Topic: how to install wiringpi2?
Replies: 12
Views: 2956

Re: how to install wiringpi2?

perhaps you might wish to contact Gordon Henderson directly via Email...?

https://projects.drogon.net/contact/
by tito-t
Sat Nov 12, 2016 1:02 pm
Forum: Beginners
Topic: omxplayer-how to change volume while playing?
Replies: 10
Views: 4084

Re: omxplayer-how to change volume while playing?

the file properties for .wav files just show
open with...
and here "Omxplayer" (drop down menu) has been set.
wav.jpeg
wav.jpeg (33.02 KiB) Viewed 3851 times
what should one choose instead for getting the loudness control additionally?
by tito-t
Sat Nov 12, 2016 12:36 pm
Forum: Beginners
Topic: omxplayer-how to change volume while playing?
Replies: 10
Views: 4084

Re: omxplayer-how to change volume while playing?

I'm also curious about omyplayer loudness control I tested it, neither ESC, +, - actually work. I am running omxplayer as the standard application for .wav files, but having double-clicked on a wav file I only have the same output volume, no adjustable loudness, and not prematurely interruptable by ...
by tito-t
Fri Nov 11, 2016 11:14 am
Forum: Beginners
Topic: from Pi: access files located on PCs in Windows workgroup
Replies: 27
Views: 10313

from Pi: access files located on PCs in Windows workgroup

hello, I integrated my Pi into my windows workgroup acc. to http://raspberrywebserver.com/serveradmin/share-your-raspberry-pis-files-and-folders-across-a-network.html Now I can access /home/pi from my Windows PCs and browse through all directories on my Pi and copy and open files there and back. I a...
by tito-t
Fri Nov 11, 2016 8:55 am
Forum: C/C++
Topic: MCP23008 and Rpi in C
Replies: 16
Views: 3026

Re: MCP23008 and Rpi in C

hello, @alextnecc : just out of interest: is that true that you will be able to poll and view the input state bytes 0xF0 when you are printing result = read(fd, buffer, 2); // read 2 bytes printf("Data read: %d\n", buffer[0]); // print 1 byte is it a 0x00 (lsb) what you see then? but isn't there a 2...
by tito-t
Sat Nov 05, 2016 9:06 pm
Forum: The MagPi
Topic: MagPi 47 - An Introduction to C - Page 62
Replies: 39
Views: 20564

Re: MagPi 47 - An Introduction to C - Page 62

not a knowlege about self-sufficient and aimless C code knowledge has to be the goal but being able to program applications, i.e. one would need knowlege about C for GPIOs C for UART, i2c and SPI, USB C for HATs, kits, and sets C for graphics C for the Pi Cam or a USB cam C for audio C for game prog...
by tito-t
Sat Nov 05, 2016 8:57 pm
Forum: The MagPi
Topic: MagPi 47 - An Introduction to C - Page 62
Replies: 39
Views: 20564

Re: MagPi 47 - An Introduction to C - Page 62

for a beginner, just having passed the basic MagPi tutorial, still not even able to make a LED blink by tutorial, poll a IMU sensor by I2C, or a GPS sensor by UART, why should he have to struggle with make or cmake as we have the Geany IDE? I'm not rejecting to be told about make, makefile, or cmake...
by tito-t
Sat Nov 05, 2016 8:02 pm
Forum: The MagPi
Topic: MagPi 47 - An Introduction to C - Page 62
Replies: 39
Views: 20564

Re: MagPi 47 - An Introduction to C - Page 62

Now build a project that has six header files and seven modules used to create three programs. The complexity of Makefiles vs CMakeLists.txt rapidly spirals out of control. My first cmake project is just about at the limit for a sane and usable Makefile. It was absolutely trivial to build the fourt...
by tito-t
Sat Nov 05, 2016 1:28 pm
Forum: The MagPi
Topic: MagPi 47 - An Introduction to C - Page 62
Replies: 39
Views: 20564

Re: MagPi 47 - An Introduction to C - Page 62

+1
;)
by tito-t
Sat Nov 05, 2016 8:14 am
Forum: The MagPi
Topic: MagPi 47 - An Introduction to C - Page 62
Replies: 39
Views: 20564

Re: MagPi 47 - An Introduction to C - Page 62

isn't that all far too complicated for beginners?
Finally it IS or SHOULD BE a tutorial designed and dedicated to beginners!
by tito-t
Sat Nov 05, 2016 8:12 am
Forum: C/C++
Topic: The MagPi does C :-)
Replies: 124
Views: 26365

Re: The MagPi does C :-)

There's not much value in doing anything for the Weather Station while it continues to be limited availability (schools and colleges only) and can't be purchased by the general public. ok, I didn't know that it could not be purchased publicly. I assumed it was, because there is a dedicated subforum...
by tito-t
Fri Nov 04, 2016 9:06 pm
Forum: Weather station
Topic: Weather Station C/C++ drivers / libs ?
Replies: 4
Views: 1122

Re: Weather Station C/C++ drivers / libs ?

a pity, but I added it to the wish list!
viewtopic.php?f=33&t=162669&p=1063387#p1063387
by tito-t
Fri Nov 04, 2016 9:05 pm
Forum: C/C++
Topic: The MagPi does C :-)
Replies: 124
Views: 26365

Re: The MagPi does C :-)

about tutorials to HATs and kits, especially because there is already a entire subforum about it:

a C/C++ tutorial about the Weather Station Kit would be highly appreciated!
viewtopic.php?f=112&t=164803
by tito-t
Fri Nov 04, 2016 8:33 pm
Forum: Weather station
Topic: Weather Station C/C++ drivers / libs ?
Replies: 4
Views: 1122

Re: Weather Station C/C++ drivers / libs ?

but for the weather station there is also no entire C tutorial and exersizes how to use all the libs needed, like it is for Python, ported 1:1, is it?

if not, then in would be a good start for a future C/C++ tutorial to Raspberry HATS and Kits

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