***I put up a page of Robots built by others using these tutorials. Click here to see all the photo submissions.***
Click on any of the pictures to see see them full size.
This page is changing daily, so hit F5 or refresh your screen to make sure you're seeing the latest version...
Right-click the Video links below, save the video to your computer and run it from there.
This is my first attempt at a BatteryVore (iVore). It's simply a Phototropic BiCore driving two small motors. -- a 74HCT240 chip with no motor driver. See the Schematic below. I just added another motor to the basic phototropic BiCore schematic from BEAM-Online
I used two old Radio Shack Phototransistors I had Laying around so I don't have a part number -- sorry. But I've also used the ones from Allelectronics.com" (CAT# PTR-1) which worked great.
The motors are very tiny ones that I salvaged from weird, old gear motors that are VERY efficient -- sorry I don't have any info on those either. They were too fast, actually and I had to add resistors across the motor leads to slow them down! I got this idea from Ben Hitchcock's Fred Troubleshooting Page -- "D) If the motor fires strongly once..." here.
Any efficient "BEAMable" motors will work.
I've gotten many e-mails from people asking for more info on building this robot (I always answer as best I can), but I will post more detailed info soon.
Here's what I did. -- Click on the pics to see them full-size: