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by il_diavolo
Tue May 20, 2014 12:17 pm
Forum: Beginners
Topic: RS 232 like signals on the GPIO pins?
Replies: 5
Views: 1534

Re: RS 232 like signals on the GPIO pins?

Thanks for your help, all. I shall enjoy trying to get the keyboard to work, an end in itself really, as I could just plug in a USB keyboard but I don't learn anything doing that. After that I'm going to try getting some NMEA data out of an old Garmin GPS I have with a broken display. I hate throwin...
by il_diavolo
Sat May 17, 2014 8:43 pm
Forum: Beginners
Topic: RS 232 like signals on the GPIO pins?
Replies: 5
Views: 1534

RS 232 like signals on the GPIO pins?

I would be grateful if someone could advise me on the following: I have a folding keyboard which I purchased years ago for use with a Palm Pilot. It is beautifully engineered and if possible I would like to use it on the Raspberry Pi. I have a spec sheet for it and think it would make a good project...
by il_diavolo
Wed May 14, 2014 12:53 pm
Forum: Python
Topic: How to use getch function ?
Replies: 14
Views: 12271

Re: How to use getch function ?

I cheated and used Pygame to 'listen' for keyboard events in my PiCamera based program.
by il_diavolo
Fri May 02, 2014 6:44 pm
Forum: Camera board
Topic: "Bulb" exposure
Replies: 2
Views: 817

Re: "Bulb" exposure

Back to my DSLR for deep sky then! Thanks for the detailed reply, it is appreciated.
Colin
by il_diavolo
Fri May 02, 2014 1:36 pm
Forum: Camera board
Topic: "Bulb" exposure
Replies: 2
Views: 817

"Bulb" exposure

As I understand it, the slowest shutter speed available on the Pi Camera is 1 second, am I correct? If so, is there any chance of adding an old fashioned "Bulb" shutter speed to the camera in the future? I would like to try some deep sky astrophotography, at the moment I can only manage the Moon and...
by il_diavolo
Sat Apr 05, 2014 2:40 pm
Forum: Camera board
Topic: Is there any way to overlay on the raspistill preview?
Replies: 3
Views: 1436

Re: Is there any way to overlay on the raspistill preview?

When I read answers like that I realise how little I know, how little I understand and how "Basic" my Python programming is!
Colin
by il_diavolo
Sun Jan 26, 2014 10:09 am
Forum: HATs and other add-ons
Topic: Motor controller defunct?
Replies: 4
Views: 1842

Re: Motor controller defunct?

Phew! Saved from embarrassment by Forum problems! Yes, the data sheet for the controller shows a minimum voltage of 6V. Apologies and thanks to all who replied. I achieved success with 7.5V (my 3V and 4.5V battery packs wired in series). A case of RTFM :) :mrgreen: Colin Using Linux since January 3r...
by il_diavolo
Fri Jan 24, 2014 7:30 pm
Forum: HATs and other add-ons
Topic: Motor controller defunct?
Replies: 4
Views: 1842

Re: Motor controller defunct?

I could be wrong but I don't think the motor supply voltage is the problem. The manual says "The motor controller is for brushed DC motors and can handle a maximum voltage of 18V and a max current of 2A". Later - "The motor will probably ( not definitely ) need more power (a higher voltage or curren...
by il_diavolo
Fri Jan 24, 2014 3:57 pm
Forum: HATs and other add-ons
Topic: Motor controller defunct?
Replies: 4
Views: 1842

Motor controller defunct?

Before I start, yes, I do have the jumper on J7 installed. I set up a small motor connected to the terminal block, together with an external 3v power supply, all as described in the manual. (The motor works when connected directly to the batteries.) When I run either "motor" or "potmotor" (in C or P...

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