Let's Make Robots!

Solar Spinner BEAM bot


I have been doing some BEAM bot work on the side. Nothing exciting but I wanted to keep making them to get some practice/experience for future projects with solar circuits. This is basically a replica of the solar spinner thats posted here.

I will add more pictures soon. Pictures and video added.

Update: Added a 10uF capacitor between pin 2 and 3 of the 1381 voltage trigger as a timing capacitor. Thanks to Gareth's comments. Added video.

pic1 pic2



Finished picture after adding the 10uF timing capacitor and removing the .22F super cap.

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Also, is there any good place to get those super capacitors cheap? I am guessing ebay?

There is a website called futurlec.com that I get my parts from.  They have 1F, 5.5 V capacitors for $2.50 each.  Their components are very cheap and work well.  Shipping is a set $4.00 for all orders up to $29.00.  However, they have realllllllyyyyyyyyyyyyyyyyy sloowwwwwwwwwwwwwwwwwwwwwwww shipping: took me 15 days to get my parts from Thailand to the US.  Also, if a part is out of stock, they WILL hold your order without telling you until they get more of them.  I always tell them to ship what they have and send the rest later/refund my card.  That always has worked well.

another question. Does it really matter what diode I use? I had this one laying around so I just used it. I didnt even bother messuring it.