Status candle

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Status candle

May
1
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Got an idea for an led candle, but raspberry pi powered. I wanted to get some of those battery powered led candles that you get and connect them up to a power supply instead so I could remote control them. The only ones I saw in real life were a bit crap or too expensive. So I've got a real candle, and some leds and I'm going to connect them up to a computer, see what I can do. Can I make it flicker realistically? Can I make it change colour? Can I get the flickeringness and the colour of it indicate something that is going on elsewhere in the world? Flickering orange: you have slack messages waiting, blinking red: there has been a nuclear war. Something like that. Will report back.

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raspberry pi: cheap low powered computer
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I made flickering LEDs, but they're not bright enough

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I have a script that gets content off the internets and lights an LED accordingly, and some more code that randomly updates the LED so it flickers, kind of like a candle. They're just not bright enough, you would notice them in a dark room but they're clearly only indicator lights and not the equivalent of a real candle. Going to try some extra bright LEDs and put as much power through them as possible without frying the raspberry pi, but I might have to rethink this - separate power for the lights, and only use the computer for control. That's obviously the best way but I was hoping for a shortcut...

Glossary:

raspberry pi: cheap low powered computer
1 May TweetComment / reply

Paul Clarke's blog - I live and work in Seabrook near Folkestone, Kent. married to Clare and father to two, I am a software engineer, and I do mostly javascript, nodejs, python, ruby, and php. I like pubbing, restaurants, home automation and other diy jiggery-pokery, history, genealogy, TV, popbitch, squirrels, pirates ☠, lego, and time travel.

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