0Jack A LopezBest Answer 1 year ago ReplyUpvoteYou should use some resistors. The math for calculating what size resistors is pretty easy. Also pages like this,http://led.linear1.org/1led.wizhttp://led.linear1.org/led.wizcan do the math for you. If you know how much current you want to flow through the LEDs, then use that number. Otherwise, I suggest 20 milliamperes (20 mA) as a typical, safe but still bright, amount of current for a 5 mm size LED.
0Downunder35m 1 year ago ReplyUpvoteYou don't need another topic for this as you already got the answer in your previous one ;)
0neelpalDownunder35m Answer 1 year ago ReplyUpvotei didn't know before my first question was answered i show it aftere post this question
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Best Answer 1 year ago
You should use some resistors.
The math for calculating what size resistors is pretty easy. Also pages like this,
http://led.linear1.org/1led.wiz
http://led.linear1.org/led.wiz
can do the math for you. If you know how much current you want to flow through the LEDs, then use that number. Otherwise, I suggest 20 milliamperes (20 mA) as a typical, safe but still bright, amount of current for a 5 mm size LED.
Answer 1 year ago
what is
(diode forward voltage) how di i khow
Answer 1 year ago
You say in your question, 3.3 V !
Answer 1 year ago
thanks....
1 year ago
You don't need another topic for this as you already got the answer in your previous one ;)
Answer 1 year ago
i didn't know before my first question was answered i show it aftere post this question
1 year ago
No.