Go to advanced search

by davenull
Mon Nov 02, 2015 8:01 am
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

isn't this the "official" Raspberry Pi forum?
So cannnot the (hardware) developers be expected to read what the consumers wish and what issues exist?
by davenull
Sun Nov 01, 2015 10:37 pm
Forum: OpenVG
Topic: additional font types for openvg C/C++ ?
Replies: 14
Views: 4096

additional font types for openvg C/C++ ?

hey,
are there additional font types for openvg C/C++ available ?
e.g.,
Zapfdingbats / Windings,
Symbol,
Greek alphabet,
EnglandHand or either handwriting font type,
7-segment LED,
:?:
by davenull
Sun Nov 01, 2015 9:55 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

ps, extra digital and analog pins could be provided by an extra onboard AVR or even an ARM M3, quickly interfaced e.g., by highspeed-SPI or USB.
That reminds me of another model 3... or TRE...

now we are pleased to present to you...

Raspberry Pi TRE ! :ugeek:
by davenull
Sun Nov 01, 2015 4:56 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

yes the Raspi was good and is good at either time, but as time goes by, the improvements and enhancements proceed. (no, I have no A type, I started with the B+ because A and B had faaaaaaar tooooooo feeeeew pins...) (edit: the sandwich is inside or down under ;) ) Finally, the better one is the foe ...
by davenull
Sun Nov 01, 2015 4:38 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

done.

Image
Image
by davenull
Sun Nov 01, 2015 2:55 pm
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

obviously, amazingly, the code seems to work... :shock: Not extremely quick, but good for a start 8-) share and enjoy! for the Raspi: /* Tx master * Raspberry Pi * ============ * ver 0006.2 * Raspbian 8.0 */ // (C) Helmut Wunder (HaWe) 2015 // freie Verwendung für private Zwecke // für kommerzielle ...
by davenull
Sun Nov 01, 2015 1:55 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

as time goes by... :)
(better 2 times too early than 1 time too late ;) )
by davenull
Sun Nov 01, 2015 1:08 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

I don't want a pony, if any, then an Arabian Stallion :mrgreen:
by davenull
Sun Nov 01, 2015 12:48 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

yes indeed, why?

(if one thinks the Raspberry is fine as-it-is ... why didn't he/she stay with the Raspberry A ? )
by davenull
Sun Nov 01, 2015 12:37 pm
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Re: Wish list for Raspberry Pi Model 3

fruitoftheloom wrote: Not required, there are other boards which will likely fit your requirements :shock:
and airplanes? who needs airplanes? Not required, they can't fly anyway as they are heavier than air... ;)

(a wishlist is a wishlist is a wishlist ... 8-) )
by davenull
Sun Nov 01, 2015 10:23 am
Forum: General discussion
Topic: Wish list for Raspberry Pi Model 3
Replies: 26
Views: 3783

Wish list for Raspberry Pi Model 3

Wish List for Raspberry Pi Model 3:

- at least 2 UART ports
- at least 2 i2c ports
- at least 8 extra ADC ports (at least by 10 bit resolution)
- hardware graphics accelerator, perhaps by support of external USB-to-VGA or HDMI (?) graphic adapters
by davenull
Sun Nov 01, 2015 10:15 am
Forum: C/C++
Topic: HDMI graphic lib: openvg syntax questions
Replies: 91
Views: 11805

Re: HDMI graphic lib: openvg syntax questions

next question: what would be the best way to pass "real color names" to the Stroke(r, g, b, x) function? #define BLACK {0, 0, 0, 1} #define WHITE {255,255,255, 1} is this correct? Stroke( WHITE ); analoguesly, e.g. for: #define RED ... #define BLUE #define GREEN #define YELLOW #define MAGE...
by davenull
Sun Nov 01, 2015 9:55 am
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

except these settings described above (i.e. the patch of /boot/cmdline.txt) - will I have to do different things before my Serial communication will work for the Raspi? e.g., any additional UART settings on command line level? Or will the C code then compile and work correctly for the Raspi out of t...
by davenull
Sun Nov 01, 2015 9:48 am
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

thanks, now I slowly get it.. The return value is the file descriptor so it's not just an error to be returned, but also a file handle, correct? char * uart = "/dev/ttyAMA0"; int Serial1 = serialOpen (uart, 115200); // for Arduino code compatibility reasons then it will become char c; seri...
by davenull
Sun Nov 01, 2015 9:36 am
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

thank you for your reply!

(edit:)
so this way...?

char Serial1[] = "/dev/ttyAMA0"; // for code compatibility reasons, for the start...
int ioerr = serialOpen (Serial1, 115200);
by davenull
Sun Nov 01, 2015 9:22 am
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

e.g., for the start:

what is *device ? How is the serialOpen function to be used?
int serialOpen (char *device, int baud) ;

is this correct?

char * uart;
int ioerr = serialOpen (uart, 115200); // what is *uart? how has it to be initialized? or nothing?
by davenull
Sun Nov 01, 2015 9:11 am
Forum: Automation, sensing and robotics
Topic: wanted: robotics multi-IO shield, 8 motors, lot of IOs
Replies: 24
Views: 2544

Re: wanted: robotics multi-IO shield, 8 motors, lot of IOs

indeed, Arduino Zero-based, Arduino IDE compatible libs, even 2 UART ports free - just curious about a free i2c and the RasPi-to-ZeroPi API interface though -
but over all:
awesome! :geek:
by davenull
Sat Oct 31, 2015 9:03 pm
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

now the next question: I'm trying to port my serial communication program between 2 Arduinos to exchange one of them (called "Tx master") by a Raspberry Pi. The communication is performed at 115200 baud, 1N8. This is my Arduino code for testing and debugging purposes which is working highl...
by davenull
Sat Oct 31, 2015 8:19 pm
Forum: Automation, sensing and robotics
Topic: wanted: robotics multi-IO shield, 8 motors, lot of IOs
Replies: 24
Views: 2544

Re: wanted: robotics multi-IO shield, 8 motors, lot of IOs

ok, thank you for your input! now are there any alternatives to RoboPi, delivering from Europe (EU)? wanted: robotics multi-IO shield providing plugs for external L298 H bridges (or even more powerful ones which I already have, on proprietary backpanes) - to control 8 motors feat. rotary encoders - ...
by davenull
Sat Oct 31, 2015 7:53 pm
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

Re: questions about wiringPi

thanks! :)
by davenull
Sat Oct 31, 2015 7:51 pm
Forum: C/C++
Topic: HDMI graphic lib: openvg syntax questions
Replies: 91
Views: 11805

Re: HDMI graphic lib: openvg syntax questions

hey, I just wanted to share a little example program using some additional API functions: int _scrwidth_, _scrheight_; #define vgHidewindow HideWindow #define vgShowwindow End #define vgcls() ClearWindowRGB(_scrwidth_, _scrheight_, 0, 0, 0); #define vgStart Start #define vgInit init #define vgCleanu...
by davenull
Sat Oct 31, 2015 5:44 pm
Forum: C/C++
Topic: questions about wiringPi
Replies: 10
Views: 1864

questions about wiringPi

hey, on Gordon Henderson's wiringPi website http://wiringpi.com/wiringpi-and-the-raspberry-pi-model-b/ it's written: Do make sure you are using wiringPi Version 2.18 though. by command gpio -v I get gpio version 2.26 but even an update for 2.29 is available meanwhile. I have a Raspi B+, what version...
by davenull
Sat Oct 31, 2015 5:15 pm
Forum: Automation, sensing and robotics
Topic: wanted: robotics multi-IO shield, 8 motors, lot of IOs
Replies: 24
Views: 2544

Re: wanted: robotics multi-IO shield, 8 motors, lot of IOs

(cross over post)
by davenull
Sat Oct 31, 2015 5:09 pm
Forum: Automation, sensing and robotics
Topic: wanted: robotics multi-IO shield, 8 motors, lot of IOs
Replies: 24
Views: 2544

Re: wanted: robotics multi-IO shield, 8 motors, lot of IOs

you simply had to look for wage costs < 10$/h and lower shipping costs by having a European provider, sure! and 150 $ plus VAT = 160 EUR 1 Raspi model 2 is about 42 EUR https://www.conrad.de/de/raspberry-pi-2-model-b-1-gb-ohne-betriebssystem-1316978.html but ok, thanks for your input, then the Robot...
by davenull
Sat Oct 31, 2015 10:23 am
Forum: Off topic discussion
Topic: Why is the search function so broken here?
Replies: 14
Views: 2594

Re: Why is the search function so broken here?

ahaa, that's the reason why, I see, thanks!

Go to advanced search