Hi, hope this is the correct place to put this, this is my first post :slight_smile: I'm not new to electronics but I'm new to arduino and what it likes/doesn't like. I'm looking for some advice regarding using transistors to switch current from a 9V battery to groups of 4 parallel LEDs. There are …

Powering LEDs using transistors controlled by arduino mega

system January 14, 2013, 8:09pm 8

Haven't had much experience using transistors in practice, that's why. Thanks for advising.

Does anyone have any knowledge regarding values?

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