Introduction: How to Make a Mini Solar Robot!

The parts you need are:
3 Capacitors (from 470uF to 4700uF, each),
a 2N3904 transistor,
a 2N3906 transistor,
a resistor(1k to 10k ohm),
a solar cell (minimum 3 volts )(i used two 2 volt cells in series),
a pager motor(or a vibrator).
you'll also need a blinking/flashing LED (FLED ).

to help you, i have made a, very easy to follow , schematic of the circuit, which can be found on


organicelectrics made it! (author)2014-08-05

Well, it isn't really a robot, but I made something similar. Instead of a motor, I decided to make it an instrument. I was definitely inspired by BEAM robots like this though!

Yours look amazing!

And yeah, most beam robots aren't robots by definition at all, but people like to call them so just to simplify electric moving objects, like "bristlebots".

RAYMOND VON (author)2013-02-13

nice cool

StephanSolar (author)2011-08-03

i build one but i didin't work, the fled is flashing but motor dont turn, when i disconnect the resistor the motor turns then i put it back and away and the motor turns again

could you help me??!!


koduor (author)2011-05-04


Kirbsome! (author)2010-08-06

great 'ible and choice of music!

coilsinamotor (author)2010-07-23

is the led a rerulaer led or is it the flashing type? or by flashing led do u mean it flashes ? geat vid i whant one! :D

peterjacob (author)coilsinamotor2010-07-24

"F"LED F = flashing yes flashing LED good luck making one :D

coilsinamotor (author)peterjacob2010-07-25

ok thanks i wasnt sure

imakethings (author)2010-05-05

very good instructable.

nadav (author)2010-03-29

 Great 'ible. Very clear instructions, and video was well edited an to the point. Keep it up!

peterjacob (author)nadav2010-03-29

well, thank you! :)

About This Instructable




Bio: I'm a student of mechanical engineering at Aalborg university in Denmark. I absolutely love to tinker with electronics and mechanics, and thus much of ... More »
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