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Offline Keoni29

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Re: electronic project
« Reply #30 on: January 30, 2012, 01:33:24 pm »
Quote from: jwalker on January 30, 2012, 01:07:06 pm
it probably would work for something right away to get an idea about some of the arduino stuff
But... but in the beginpost he stated that he didn't want to venture into arduino or other digital things.
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Offline Nick

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Re: electronic project
« Reply #31 on: January 30, 2012, 01:53:41 pm »
no, i'm just buying it all together now because is surely will in the future, and then it's cheaper to buy it all right now..

but i'll just start with the breadboard :)
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Offline Keoni29

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Re: electronic project
« Reply #32 on: January 30, 2012, 01:55:25 pm »
Do you have something in mind? I built logic gates and voltage regulators to start with.
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Offline Nick

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Re: electronic project
« Reply #33 on: January 30, 2012, 02:00:02 pm »
i thought of starting with some simple led manipulations, in combination with potentiometers, buttons, transistors etc

i really don't know how you could make a voltage regulator, do you have some schematics of it?
« Last Edit: January 30, 2012, 02:00:28 pm by Nick »
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Offline Keoni29

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Re: electronic project
« Reply #34 on: January 30, 2012, 02:16:13 pm »
Quote from: Nick on January 30, 2012, 02:00:02 pm
i thought of starting with some simple led manipulations, in combination with potentiometers, buttons, transistors etc

i really don't know how you could make a voltage regulator, do you have some schematics of it?
No, but the internet has.
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Offline Juju

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Re: electronic project
« Reply #35 on: January 30, 2012, 02:29:29 pm »
Make sure to not destroy your LEDs with too high voltage. Also I know you have transistors to regulate the voltage, but last time I messed with them with my friend in electronics it was rather complicated and a PITA.
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Offline Spyro543

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Re: electronic project
« Reply #36 on: January 30, 2012, 03:10:10 pm »
Quote from: Juju on January 30, 2012, 02:29:29 pm
Make sure to not destroy your LEDs with too high voltage. Also I know you have transistors to regulate the voltage, but last time I messed with them with my friend in electronics it was rather complicated and a PITA.
When I didn't know anything much about electronics, I hooked an LED up to one of those huge lantern batteries...it was supposed to be white, but it was orange, then brown, then really really bright, then poof. It started smoking and smelling really bad.
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Offline Juju

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Re: electronic project
« Reply #37 on: January 30, 2012, 03:12:21 pm »
Quote from: Spyro543 on January 30, 2012, 03:10:10 pm
Quote from: Juju on January 30, 2012, 02:29:29 pm
Make sure to not destroy your LEDs with too high voltage. Also I know you have transistors to regulate the voltage, but last time I messed with them with my friend in electronics it was rather complicated and a PITA.
When I didn't know anything much about electronics, I hooked an LED up to one of those huge lantern batteries...it was supposed to be white, but it was orange, then brown, then really really bright, then poof. It started smoking and smelling really bad.
Yep, the perfect way to fry a LED. Those are kinda fragile and burns for nothing, you know.
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Offline Nick

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Re: electronic project
« Reply #38 on: January 30, 2012, 03:56:55 pm »
Quote from: Spyro543 on January 30, 2012, 03:10:10 pm
Quote from: Juju on January 30, 2012, 02:29:29 pm
Make sure to not destroy your LEDs with too high voltage. Also I know you have transistors to regulate the voltage, but last time I messed with them with my friend in electronics it was rather complicated and a PITA.
When I didn't know anything much about electronics, I hooked an LED up to one of those huge lantern batteries...it was supposed to be white, but it was orange, then brown, then really really bright, then poof. It started smoking and smelling really bad.

lol, well i never had it burnt before, but i had a yellow one that was red (from only 9V) but i detached it directly and nothing was broken (lucky me xp)
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Offline Keoni29

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Re: electronic project
« Reply #39 on: January 30, 2012, 03:57:07 pm »
Use lightbulbs instead if you want to be completely safe (or tie a 1k resistor to the led)
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Offline Nick

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Re: electronic project
« Reply #40 on: February 01, 2012, 11:58:10 am »
yay, i got my breadboard, some leds, condensators, resistor and diodes, they didn't have any transistors Ö so now i con't yet make something useful, just some leds in parallel and serie lol
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Offline Juju

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Re: electronic project
« Reply #41 on: February 01, 2012, 02:16:17 pm »
Quote from: Keoni29 on January 30, 2012, 03:57:07 pm
Use lightbulbs instead if you want to be completely safe (or tie a 1k resistor to the led)
Yeah, most people tie resistors everywhere to be safe. Those'll be your best friend :P
« Last Edit: February 01, 2012, 02:17:37 pm by Juju »
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Offline Spyro543

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Re: electronic project
« Reply #42 on: February 01, 2012, 02:19:19 pm »
If you're going to go with a development board, it'll be more software than anything. With my PICkit, all I have to do to light up an LED is put
Code: [Select]
TRISD = 0b01111111;
LATDbits.LATD7 = 1;in my code. No actual hardware modding. But it's still a fun and educational experience :)
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Offline Nick

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Re: electronic project
« Reply #43 on: February 01, 2012, 02:32:33 pm »
ow many volts is that output? or is that the standard built-in led you light up with that?
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Offline Keoni29

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Re: electronic project
« Reply #44 on: February 02, 2012, 01:57:58 pm »
Quote from: Nick on February 01, 2012, 11:58:10 am
yay, i got my breadboard, some leds, condensators, resistor and diodes, they didn't have any transistors Ö so now i con't yet make something useful, just some leds in parallel and serie lol
You can make passive filters with those. Google RC low-pass filter and RC hi-pass filter. Those filters modify audio signals for example.
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