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That would be grand. I'll send you a note separately

Will do! I'll see if I can get it to search for the light and keep you posted. I do plan to open up the bot as much as possible to see if I can tell what is wired to what. That should give me some more clues on functionality.

You're right! They are resistors. I'll attach a close up of the back sensor. Its the same as the front two. To test your theory, i turned the bot away from the light with the back sensor facing the light. Activated the switch, and it did a 180 and turned right back to the light source. I had...

Thanks @bogbean I have some type of sensors on it (3 total) but I dont know if they are the same as the ones you point out. I did however get the bot to move! (A little) it seems to be reorienting to the window. But I have not seen motion beyond that. I documented this and the corresponding...

Agreed. I hope to be able to figure out how it works without having to reprogram it. The code feels like a final fingerprint of his living on in the robot. I'm writing down all the things I get the bot to respond to at different switch positions. I'll post them later this week. Maybe someone can...

Thanks for such a fast answer. I too thought about old computer files, but thought about it too late. The computer was donated. I'll dig around the internet for old plans. If i learn anything new I'll post it. If I cant decode it through manual testing, maybe I'll recode it myself. (I'll need...

Hello, I was given one of my Grandpa's old solar robots he made. I'm trying to bring it back to life and get it to move around. My main thing now is that I would like to see the code on the chip so i know what it should do. I get some life from it but no movement yet. I made a short 2min...