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by BeeryChisels
Thu Jul 25, 2019 11:45 pm
Forum: Python
Topic: tkinter and GPIO, how to set up a physical input button
Replies: 8
Views: 765

Re: tkinter and GPIO, how to set up a physical input button

Hi MattiMTB, its good to hear of somebody experimenting with real hardware these days! The common Cadmium Sulphide LDR's are very slow and non-linear - ok for photographic exposure meters and things where a bit of damping can be beneficial. For something faster I'd be tempted to go for infra-red tra...
by BeeryChisels
Thu Jul 25, 2019 10:26 pm
Forum: The MagPi
Topic: SelectMagazines/Publishing
Replies: 6
Views: 5164

Re: SelectMagazines/Publishing

I've had several go missing despite the emails that tell me they are on the way. I'm getting fed up of having to get on to the distribution people nearly every month, plus I miss out on special offers, free draws, etc. I've read somewhere on here about people stealing the magazines to sell on eBay. ...
by BeeryChisels
Thu Jul 25, 2019 9:48 pm
Forum: The MagPi
Topic: Contact phone number for subscriptions?
Replies: 6
Views: 5270

Re: Contact phone number for subscriptions?

I've lost count of how many of my subscribed-for MagPi magazines have gone missing. I'm getting fed up of having to complain every dratted month, plus I miss out on special offers, free draws, etc. Trouble is round here there's no other way of getting them. Reading them on the www is nowhere near as...
by BeeryChisels
Thu Jul 25, 2019 9:26 pm
Forum: The MagPi
Topic: Problems with subscription in U.S.
Replies: 2
Views: 2711

Re: Problems with subscription in U.S.

You think you've got problems! I'm a subscriber and the last three months (May, June, July 2019) issues of MagPi have all failed to arrive. And I live in England! To say that I'm annoyed is putting it mildly. So far I've missed out on two Raspberry Jams that took place nearby, and several chances to...
by BeeryChisels
Fri May 18, 2018 6:27 pm
Forum: RISCOS
Topic: Trouble installing RISCOS on Pi3
Replies: 39
Views: 23983

Re: Trouble installing RISCOS on Pi3

Hi, I'm new-ish to the Pi, and still have a RISC-PC running here too! I've recently bought a Pi 3B+, having used RISC-OS on a Pi 2B for some time now. The Pi 2B has Raspbian and RISC-OS both on the same micro-SD card, plus a few other things too. This means I can easily boot up in either of them at ...
by BeeryChisels
Sun Mar 20, 2016 5:31 pm
Forum: Troubleshooting
Topic: Which java(script) do I need?
Replies: 5
Views: 861

Re: Which java(script) do I need?

To fruitoftheloom, cheers, thanks a lot, the code you posted seems to have worked. I'm going to keep watching for a day or two in case any more interesting snippets arrive. Thanks again,
Regards, Beery Chisels (its an anagram)
by BeeryChisels
Sun Mar 20, 2016 5:23 pm
Forum: Troubleshooting
Topic: Which java(script) do I need?
Replies: 5
Views: 861

Re: Which java(script) do I need?

Ah, that accounts for some of my confusion then. Definitely a bad choice of names, almost down to Gatesian standards! It looks as if icedtea is working, as this is me on a Raspberry Pi now. I've visited other sites too before coming here, its a case of so far so good.
Regards, Beery Chisels
by BeeryChisels
Sun Mar 20, 2016 3:26 am
Forum: Troubleshooting
Topic: Which java(script) do I need?
Replies: 5
Views: 861

Re: Which java(script) do I need?

Cheers! I'll try it tomorrow!
by BeeryChisels
Sat Mar 19, 2016 6:55 pm
Forum: Troubleshooting
Topic: Which java(script) do I need?
Replies: 5
Views: 861

Which java(script) do I need?

Hello all. I have several Raspberry Pi's and have had very little success with any of the browsers supplied. I could see some internet pages on my screen, but it was never long before I got the error "No support for Java" or "Java required" or some such. It might have been Javascript that was missin...
by BeeryChisels
Sat Jun 29, 2013 1:15 pm
Forum: Python
Topic: Keyboard Scanning
Replies: 2
Views: 571

Keyboard Scanning

Hello everybody. I have typed in 'Bat and Ball' from the first MagPi and it works well. As a programming exercise which I know will be useful to me in the future, I decided to convert it to keyboard control. So far I have failed. All the methods I have come across so far seem to be incredibly over-i...
by BeeryChisels
Thu Apr 25, 2013 5:06 pm
Forum: Python
Topic: Getting stuck in to Python
Replies: 4
Views: 2904

Re: Getting stuck in to Python

Hello antiloquax, This looks like a really useful jumping-off point for Rocket Raid to me! Your post says that as well as the code, I need images: laser, ship, alien, background too. Where do I get these from, please? And how do I create my own images? What I really need is a good book about Python ...
by BeeryChisels
Mon Apr 15, 2013 3:45 am
Forum: Python
Topic: Accurately controlling a Servo
Replies: 4
Views: 2125

Re: Accurately controlling a Servo

Hello again jbonnett. Joan is quite right, the control signal needs to be sent repetitively. I think the problem with the fast joystick movement is all that sleeping that's going on within the program, combined with the single output pulses. Part of the definition of a PWM signal is that pulses are ...
by BeeryChisels
Sun Apr 14, 2013 4:34 pm
Forum: Python
Topic: Accurately controlling a Servo
Replies: 4
Views: 2125

Re: Accurately controlling a Servo

This is most unusual behaviour for a servo. They should go where they are told, slowly or quickly depending on the servo. However, only going part of the way is something which can happen quite easily with stepper motors. The servo motors that I know of are controlled by a PWM signal, so I assume th...
by BeeryChisels
Sun Apr 14, 2013 1:26 pm
Forum: General discussion
Topic: 12V 7.2Ah lead acid battery charging question.
Replies: 17
Views: 10581

Re: 12V 7.2Ah lead acid battery charging question.

As the battery voltage is now so low, the UPS might regard it as a short circuit and not even attempt to charge it because its protection circuitry will have activated. In this instance, you could try a car-type battery charger, but DO MAKE SURE that NOTHING ELSE is connected to the battery or the c...
by BeeryChisels
Sun Apr 14, 2013 1:12 pm
Forum: Python
Topic: PRINT function details
Replies: 2
Views: 772

Re: PRINT function details

Thanks Tim, that's fantastic! I will now switch this silly PC off, switch the Pi on, and play with the print function. I didn't realise 'help' worked in IDLE. IDLE shows the syntax when I enter 'print' as a kind of tooltip, but not the full explanation. Which I wouldn't want anyway, now I know about...
by BeeryChisels
Sun Apr 14, 2013 3:33 am
Forum: General discussion
Topic: Account recovery (username/email combo does not exist)
Replies: 17
Views: 4008

Re: Account recovery (username/email combo does not exist)

Hi guys, Chris here. What follows is all my fault... Months ago I registered with the forum, using my email address: [redacted by mod] I tried to log on again yesterday (April 13th 2012) but couldn't remember my password, so I selected the 'Forgotten password?' link. I then found that I couldn't rem...
by BeeryChisels
Sun Apr 14, 2013 2:35 am
Forum: General discussion
Topic: 12V 7.2Ah lead acid battery charging question.
Replies: 17
Views: 10581

Re: 12V 7.2Ah lead acid battery charging question.

Hello All, Using the UPS to charge the battery is probably ok, and depending on the configuration it may just look after itself. If there is a blip at changeover, then it may not. When looking for a full charge, the system will be looking for a drop in current, not voltage. It may look for a low vol...
by BeeryChisels
Sat Apr 13, 2013 7:51 pm
Forum: Python
Topic: PRINT function details
Replies: 2
Views: 772

PRINT function details

Hi, I'm new to the Pi but have quite a lot of experience of other computers and languages. This concerns the PRINT function in Python: I'm using IDLE3 because as a newcomer I can't see the point of using earlier versions. I'm going through the tutorials in the MagPi, and using the Raspberry Pi User ...

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