Nice:)

I'll just take you up on your offer robotmaker. Take another look at Gizmo's head/eyes in the Project Showcase. I have one 5mm LED in the center tube of the "eye". There are six, 3 mm LED's in the bottom half of the eye (making a semi circle) wired in parallel ( all positive leads connected; all negative leads connected). the center 5mm led is also wired to these lower six LED's.The "upper" six LED's are wired seperately, in parallel also. Right now they are connected to a digital (out) pin on the EZ-B, and have a script to make them blink, very quickly off, then back on every 3 or 4 seconds. What I would like to do is put a battery pack in the head (project box) to power all the LED's. What I need is a flashing circuit that will turn those upper six LED's off ( for say 500 ms) then back on every 3 or 4 seconds. The effect I'm looking for is a "eye blink" effect. Actually a random timing would be even better and give a more natural look. What you think? Again, thanks in advance for any help. Lloyd

thats very easy ,using a 555 8pin timer can put together a circuit parts under $5 total

Great news! Can the circuit board have 3 pin servo headers on it? I would need to plug in 4 servo cables. Can you show me how to make this, or can you make one up for me? I'd be more then happy to reimburse you for your time and materials. Let me know please. Thank you so much! Lloyd

yes it only need 3 pins plus 2 output pins,can make the circuit,need to work out a price including shipping ,but under $10

will need to breadboard it first and see if i have all the parts to build it,do have the main chip needed 555 timer what is the total current of leds,mostly it leds x .20 ma

@robotmaker - this is incredibly generous. I know there are many people who will be very greatful for your efforts. You rock!

dont need money, and i just like to building and designing

on led current i see you are driving 6 leds ,so 120 ma to 150 ma for surge current

@robotmaker I've been looking for a good circuit that flashes a group of say 10 LED's whenever the robot is speaking. Sort of voice lights like on the Johnny 5 robot. I have tried several circuits using the LM3914 dot/ bar-graph display but none have the right '"look" if you know what I mean. Any ideas?