Help with BEAM robot please! Answered
Hi all! I am starting to build the famous mousey robot but I ran into problems already, I am a newbie!. If someone could give me a hand that would be very appreciated.
I have all the parts except for the relay which I hope will arrive anytime soon (had to buy it online)
attached is a diagram I drew to use as a guide when breadboarding the first part of the circuit that makes the robot seek light. The problem is both motors work and spin but they don't seem to change the speed when I cover one of the light sensors. If I use the multimeter on the light sensors while disconnected from the circuit it gives me 0.04 volts for both, positioned in such way they receive the same amount of light. If I move them the readings are different ( more if closer, less I farther away). But when they are connected as shown and I measure voltage they both give me the same value no mater which one I cover with my hands, also, the value changes if I move the light source. I am using a breadboard to connect the light seeking circuit but I will attach images later it is the same as the attached image (I hope) the difference is the image was drawn with the circuit board I am going to use.
Also, I measured the voltage motors were getting while running with a different light sensors covered at a time and both motors gave me the same ~4V.. I think that means they are running at the same speed right?
I think that the instructable about mousey in this site still has the led error but I am not sure.
corrected? circuit diagram http://www.streettech.com/robotbook/circuitMousey.html
I also attached a second diagram of how it should look when completed with relay etc.
I drew them so they might have errors!
Thanks a lot, any help would be very appreciated!
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