Adalight+Arduino Duamilanove+DC input?

[illiac4]

Hi!
1.
Can the DC input connector on Arduino Duamilanove be used as 5V 3A input so that no external DC jack is needed?
2.
Second question is if the Arduino Nano 3.0 will work Adalight?

[pburgess]

1. Can the DC input connector on Arduino Duamilanove be used as 5V 3A input so that no external DC jack is needed?

No...the DC input on the Arduino feeds into the voltage regulator...5V is too low, and it can only handle about 1A.

2. Second question is if the Arduino Nano 3.0 will work Adalight?

Should be fine, yes. I haven't specifically tested, but as I understand the Nano is basically a Duemilanove smooshed into a tiny package.

[illiac4]

Tnx for answer.

One question.
What is the difference between arduion uno and duamilanove specific used in adalight project. Maybe more channels handle because of different communication chip?

[mtbf0]

What is the difference between arduion uno and duamilanove specific used in adalight project. Maybe more channels handle because of different communication chip?

don't really think so.

.

Can the DC input connector on Arduino Duamilanove be used as 5V 3A input so that no external DC jack is needed?

you can connect 5v and ground on the connector behind the jack on the arduino and use the isp connector to get power and spi signals for your led strip. the question then becomes whether or not the traces on the arduino are beefy enough to handle 15w. i, of course, don't know.

i think what the world is waiting for is a shield with a power jack prominently marked "5v ONLY" and appropriate jst sm connectors for the various led strips. maybe a switch to disconnect the 5v from the arduino when programming, though i've yet to have trouble when i forget to turn off the atx supply i use to power my uno and strip.

yeah, yeah, yeah. "design it yourself." "show us your chops." i've heard it before. it ain't gonna happen. i just cut up atx extension cables, short power on to ground and attach a usb connector for the arduino and a jst connector for my lpd8806 strip.

[pburgess]

What is the difference between arduion uno and duamilanove specific used in adalight project. Maybe more channels handle because of different communication chip?

Not a thing. In fact, the tutorial shows a setup built around an older Arduino ATmega168 Diecimila. Works exactly the same as the latest Uno. The extra RAM on the latest boards is useful for standalone LED installations (where there's no computer attached), but makes no difference for the streaming approach used by Adalight.

USB-native boards like the 32u4 Breakout Board, Teensy and Arduino Leonardo can stream more LEDs at faster frame rates, but this is only an issue when using well over 100 LEDs.