Not only does he look human , he is also a functioning circuit ! his head is an LED and turns on only when there is no light ! he has got a mind of his Own ! :) simple to make of course , but EXTREMELY Geeky :)
this tiny thing gets its power in a medieval way positive alligator clip clips to one of its legs , the negative end to one leg of the led ! if i were to put a battery it would loose the cute look !
on the back you have the photo transistor , i described the mode of function in a post under this ! Thanks for the compliment how about i try making another one and mail it to you ?! if they accept it inside a normal envelop and do not search it thinking its some type of a bomb coming from an Arab country (Lebanon) !
If you shift R1 accidently to +9V and the photo transistor is shadowed at the same time and has a high resistance, Q1 will be fried. Using a 9V block battery and a relay is not very economic How is it to use a Li-Ion 3V or 1.5V coin cell on its back? I have once built a resistor man with following circuit. Could be easily modified with a LDR or photo transistor And flashing a long long time…
This is really cute. I am sure that you could market this somehow for kids during the Christmas season. It just needs a little cosmetic work. Great job here and I can’t wait to see what else you come up with.
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