$20 LED Build

[StirCrazy]

Originally Posted by pinhead

There is a thread on UK reefs. Total cost of the arduino and shields is only $45.

I think it will be a lot more than that, probably 100.00 to 150. My arduino alone was 55 bucks. basice screens (bw with 3 line output are 15 bucks, but jump to 100 bucks for deicent ones, touchescreens are up there even more.

thanks for the links on the lights, not crees but good enough.

also if you are going to be using the 100 watt LEDs remember this. the 100 watt LEDs are what they are using to replace 400 watt MH arena lighting.

Steve

[pinhead]

Originally Posted by StirCrazy

I think it will be a lot more than that, probably 100.00 to 150. My arduino alone was 55 bucks.

Steve

A real Arduino 2560 from the Arduino store will cost even more at $76. Since I am using non-brand name LED's, I have no problem using electronics from China.

Arduino Mega 2560 - $18

3.2 Colour Touch Panel - $17.50

Mega Shield for LCD $5.50

Mega Prototype shield $5.00


I like DIY projects and any money I save on the projects I can put back into livestock.

[StirCrazy]

Originally Posted by pinhead

Arduino Mega 2560 - $18

3.2 Colour Touch Panel - $17.50

Mega Shield for LCD $5.50

Mega Prototype shield $5.00

you got a link for the touch panel?

Steve

[pinhead]

Originally Posted by StirCrazy

you got a link for the touch panel?

Steve

http://www.ebay.com/itm/200696359494...84.m1438.l2649

[TommDool]

those drivers you have listed. is there a way to make them dimable? like adding a potentiometer to the LEDs or do you have to have a dimable driver that supports that?

[pinhead]

Originally Posted by TommDool

those drivers you have listed. is there a way to make them dimable? like adding a potentiometer to the LEDs or do you have to have a dimable driver that supports that?

Did it on the Biocube. A 10000k potentiometer is connected to the V+ signal off the driver. Use 2 pins on the potentiometer - the center and either the left pin or the right pin. From the pot, it then goes to the positive pad of the LED. Dims right down to zero and is a cheap solution.

Just received 9 more drivers and will work on the lights for the 90 gallon when I get some time.

[ScubaSteve]

Hey Doug, check this guy out. Pretty sweet touchscreen with a ton of features for a good price. http://store.earthlcd.com/ArduinoLCD

[Seth81]

Originally Posted by pinhead

Did it on the Biocube. A 10000k potentiometer is connected to the V+ signal off the driver. Use 2 pins on the potentiometer - the center and either the left pin or the right pin. From the pot, it then goes to the positive pad of the LED. Dims right down to zero and is a cheap solution.

Just received 9 more drivers and will work on the lights for the 90 gallon when I get some time.

So is this driver dimmable with a 0 - 5 Vdc signal? From the ebay listing it doesn't really look like it. Or are you suggesting to put a 10K ohm pot from the output + to the return? I sure as hell hope not!