| Electronics > Beginners |
| Sequential tail lights |
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| CJay:
--- Quote from: Mr. Scram on October 02, 2018, 12:11:11 pm --- --- Quote from: robjodicarter on October 02, 2018, 03:16:06 am ---So any 5 volt how many amp? I'll look it up. I'm a big boy. I should be getting all this stuff soon. I will let you know when I get it all. I'll be asking tons of questions I imagine. Rob Sent from my PH-1 using Tapatalk --- End quote --- 5V might be too little for the Arduino. This is because it has its own regulator on board which will eat up a bit of the 5V you supply it. You may want to look up what voltage regulator drop out voltage is. --- End quote --- You can bypass the regulator and feed the Arduino 5V directly. |
| Mr. Scram:
--- Quote from: CJay on October 02, 2018, 02:50:32 pm ---You can bypass the regulator and feed the Arduino 5V directly. --- End quote --- Obviously, but either way it's something to be aware of. |
| Brumby:
I don't think the Arduino will have any problem running from 5V. My Mega 2560 ADK board works perfectly off 5V USB power - and it's hosting a scanning laser barcode scanner. He will be able to do a 10 LED sequential tail light with just the Arduino, 10 LEDs and 10 resistors - which will be well within the 500mA current capacity of basic USB. |
| Mr. Scram:
--- Quote from: Brumby on October 02, 2018, 03:31:42 pm ---I don't think the Arduino will have any problem running from 5V. My Mega 2560 ADK board works perfectly off 5V USB power - and it's hosting a scanning laser barcode scanner. He will be able to do a 10 LED sequential tail light with just the Arduino, 10 LEDs and 10 resistors - which will be well within the 500mA current capacity of basic USB. --- End quote --- I've had problems with it in the past when using an Arduino Uno Rev3, which is why I mentioned it. Using a 12V adapter instead fixed the problem. |
| Brumby:
Interesting - I haven't. Looks like something to be aware of if strange things start happening to the OP... |
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