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by DPaul
Sat Nov 11, 2017 11:00 am
Forum: Beginners
Topic: Timer questions !
Replies: 4
Views: 608

Timer questions !

Hi, My wiring is done, with forum help and many tuts! Question 1: Before i start the on more python programming, i would like to make sure that my basic wiring is correct, because i am somewhat confused with all the wiring diagrams that i find for the same thing. Basically i am turning a LED ON (aft...
by DPaul
Sat Nov 11, 2017 7:21 am
Forum: Beginners
Topic: mobile power supply
Replies: 7
Views: 754

Re: mobile power supply

Thx for all this info. For the first "production" version i will be needing one of these. During my beta period, i will be using an old one of 6.000 mAh that i have lying around. It will allow me to assess its battery life and extrapolate to what i really need. I assume though, that the stuff you us...
by DPaul
Fri Nov 10, 2017 4:05 pm
Forum: Beginners
Topic: mobile power supply
Replies: 7
Views: 754

Re: mobile power supply

That is clear !

thx,
Paul
by DPaul
Fri Nov 10, 2017 3:48 pm
Forum: Beginners
Topic: mobile power supply
Replies: 7
Views: 754

mobile power supply

Hi, I'm almost in the field testing phase and thinking about power supply other than the 220v adapter that came with the Rpi 3. I've been reading stuff about 4x rechargeable 1.5v batteries, for which i have a housing, but comments are contradictory. I also have a powerbank that has 2x "5v output", 2...
by DPaul
Wed Nov 08, 2017 6:28 am
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

OK, i understand that.
Currently developing the beta, when time comes i will need to implement the backlight on/off feature.
Then i'll look into backpacks.

thx,
paul
by DPaul
Tue Nov 07, 2017 4:37 pm
Forum: Beginners
Topic: HWclock prob
Replies: 4
Views: 543

Re: HWclock prob

I like it :D

thx,
Paul
by DPaul
Tue Nov 07, 2017 3:35 pm
Forum: Beginners
Topic: HWclock prob
Replies: 4
Views: 543

Re: HWclock prob

OK, you mean that a python datetime statement, will automatically refer to the RTC
instead of the internet ?

Import time -> would get its time from the RTC.

That would be good news, don't have to do anything :shock:

thx,
Paul
by DPaul
Tue Nov 07, 2017 11:23 am
Forum: Beginners
Topic: HWclock prob
Replies: 4
Views: 543

HWclock prob

Hi, Still working on my first project: It requires : - an LCD 16x2 wired to the Pi 3 : done - a RTC (real time clock) wired to the GPIO : done (hwclock -r works) In a python prog: - i can display date and time and seconds on the LCD : done But, Date and time are coming via the internet, not from the...
by DPaul
Mon Nov 06, 2017 4:29 pm
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

OK, i need to buy a transistor then. :shock:

It says : NPN transitor (BC547, BC548 or equivalent)
I hope they are not 1.000 euro / piece. ;)

thx,
Paul
by DPaul
Mon Nov 06, 2017 3:46 pm
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

Hi,

Transistor ?
In only want to:
set backlicht on (1) and off again (0)

And that does not seem to work at the moment,
hence i think the 4 is wrong.

Paul
by DPaul
Mon Nov 06, 2017 9:56 am
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

Hi, Success! using: https://learn.adafruit.com/drive-a-16x2 ... t?view=all It uses some "cobbler" thing, which i don't have, but i supposed that it mirrors the GPIO pins. I'm left with one small prob: In the python program, i use the following: lcd_rs = 25 lcd_en = 24 lcd_d4 = 23 lcd_d5 = 17 lcd_d6 ...
by DPaul
Mon Nov 06, 2017 6:36 am
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

OK, will spend the next few hours to try/test all of the above.
If i see "Hello World" appearing, i'll let you know :-)

Paul
by DPaul
Sun Nov 05, 2017 4:58 pm
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

It was the right question, and the right answer, thanks, so i got a bit further with the wiring, but no real result yet. I have assigned the pins in the program, as suggested: RS = 17 (pin 11) EN = 18 (12) D4 = 27 (13) D5 = 22 (15) D6 = 23 (16) D7 = 24 (18) i'm still left (adafruit example program )...
by DPaul
Sun Nov 05, 2017 11:38 am
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Re: Arduino vs GPIO

Thanks for the reply, i will study it.
Saying that, i'm not sure i asked the right question, will come back to this.

Paul
by DPaul
Sun Nov 05, 2017 10:33 am
Forum: Beginners
Topic: Arduino vs GPIO
Replies: 13
Views: 3218

Arduino vs GPIO

Hi, I'm a bit stuck on my first Raspberry pi exercise. I managed to connect a 16x2 Adafruit monochrome LCD to a breadboard and wire it up using an Arduino wiring scheme. https://learn.adafruit.com/character-lcds/wiring-a-character-lcd I got as far as connecting power & potentiometer, it works fine. ...
by DPaul
Sat Oct 28, 2017 7:38 am
Forum: Beginners
Topic: Azerty prob [solved]
Replies: 6
Views: 758

Re: Azerty prob [solved]

Hi,

Thanks B.Goode, very simple solution, took me a couple of seconds to put it right.
Passwords are in azerty now.

Paul
by DPaul
Sat Oct 28, 2017 6:22 am
Forum: Beginners
Topic: Azerty prob [solved]
Replies: 6
Views: 758

Re: Azerty prob

Raspi-config utility ?
No idea what that is, but i will find out and let you know. :-)

Paul
by DPaul
Fri Oct 20, 2017 9:23 am
Forum: Beginners
Topic: Azerty prob [solved]
Replies: 6
Views: 758

Re: Azerty prob

No succes yet ! Started again, finding my preferences intact, as i set them, Azerty keyboard. In command mode, i was able to enter the long command to create a new user "sudo useradd -m -G ...etc etc " clearly with a azerty character layout. I even logout-rebooted. All is well EXCEPT when i change a...
by DPaul
Thu Oct 19, 2017 10:01 am
Forum: Beginners
Topic: Azerty prob [solved]
Replies: 6
Views: 758

Re: Azerty prob

OK, i just changed it via the menu / preferences.
Said nothing about rebooting.

I'll see what happens next time i power up.
Will let you know.

thx,
Paul
by DPaul
Thu Oct 19, 2017 7:52 am
Forum: Beginners
Topic: Azerty prob [solved]
Replies: 6
Views: 758

Azerty prob [solved]

Hi, Booted up pi3 for the first time, it works ! Except.... In the preference menu, keyb/mouse, i changed the keyb to Azerty. Doing the test with "raspberry" it indeed puts the a in the right place (not "rqspberry") I wanted to test changing user (via Log out), and since i only have one user (defaul...
by DPaul
Sun Oct 15, 2017 6:46 am
Forum: Beginners
Topic: newbie hardware question
Replies: 3
Views: 607

Re: newbie hardware question

Hi,

Thanks for these very learned replies.
I'll stick to the safe side and buy a small keyboard, it won't ruin me :-)

Paul
by DPaul
Sat Oct 14, 2017 8:55 am
Forum: Beginners
Topic: newbie hardware question
Replies: 3
Views: 607

newbie hardware question

Hi, I have just purchased a Pi3 + some gadgets to go with it. My 40+ years expierence in ICT have to do with software programming , so i am venturing partially into new (hardware) territories. I am reading the manual, downloading/unzipping NOOBS etc.... so far so good. I need a monitor with HDMI, no...

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