LED eyes

[Pinocchio]

During my recent visit to Japan, I picked up a KHR-3HV version 2 package, but I didn't get the LED eyes.

does anyone know where I can get some full color LEDs in the USA? do i need resistors? hopefully there's a kit with the right size etc.

thanks!

[Fer]

You have a manual in Japanese explaining the materials you need to make LED eyes.
This is the download link:

http://www.robospot.jp/pdf/06_PIO_manual.pdf

[Pinocchio]

thank you! do you know if the manual applies to full color led? i think it is a 5mm RGB Led with 4 pins. 3 anodes and a common cathode.

i'll have to try to google translate the document and figure this out.

[Fer]

You can use 5mm LED high brightness and 3 volts of any color with a resistor, then connect to PIO 1 and 2, making it easy.

Regards.[/img]

[Pinocchio]

there's only two LEDs, one for each eye. each LED has 3 colors in it, RGB, which can make any color.

the LED has 4 pins, one being the common cathode. i would have to use PIO 1, 2, 3, 4, 5, 6 ?

i guess i have to find LEDs and try it out. thanks!

[Pinocchio]

just to follow up, i was able to get the Full Color LED eyes working.

i bought servo extension leads with Futaba J connectors. some 1/4W resistors, and 5mm RGB common cathode diffused LEDs.

i pulled each pin out of the Futaba connectors and reordered them so all 8 wires lay in a ribbon format for better routing, like [RG(BC)][(CR)GB] (left and right eyes). these went into the PIO slots 1 - 6, respectively. i only had to connect the common cathode lead to one connector each (in my case, the ground of PIO 3 and 4)(1, 2, 5, 6 only have one wire, no ground).

the LEDs have minimal voltage requirements, so i used 180 ohm for Green and Blue, and 330 ohm for Red. 330 ohm is slightly lower than the minimal voltage but it worked. I may try to increase resistance because the LED is too bright, even though they are diffused.

I used 26AWG servo leads, but maybe 32AWG would be better.

now i have multi-color eyes that can be controlled independently.