3 Simple Ways to Share What You Make
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Dec 12, 2008
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Comment: Hey! Sorry for the delay, but yeah your trimpot should connect the same. You'll notice …
Comment: Whoops, yeah the directions in step 5 are outdated I need to change them. Right, th…
Comment: The outer pins of the trim pot are interchangable, there's no difference between them t…
Comment: Actually, there's a small difference. The base of the transistor connects in between th…
Comment: Yep, it connects the same way. Its the same exact thing but just made a little bit diff…
Comment: Yeah sadly not all components are made the same. It seems your photocell has a higher p…
Comment: Try a 10k ohm pot to see if that helps, if not it might be because off the cell not giv…
Comment: Yeah emitter connects to the battery ground, collector to the negative end of the cap a…
Comment: Yeah any regular laser will do and hooking it up to a power supply is a great idea if i…
Comment: Congrats! It always feels amazing when you hear it ring (literally in this case) haha
Comment: Yeah, almost all circuits/electronics do. Especially this type of transistor which has …
Comment: Ideally, yes it would. But of course remember that there is a minimal amount of current…
Comment: The first one should work just fine but I'd recommend the second one cause that one wil…
Comment: Yeah that'll work just fine
Comment: My mistake, actually the wavelength of the green laser is less (green light is at 500nm…
Comment: The photocell works by having dispersing electrons in its metal once light is shined on…
Comment: Yeah the directions might be outdated but the circuit diagram is correct. The + end of …
Comment: Hey thanks for catching that! Yeah that was actually an outdated circuit schematic. The…
Comment: Yeah, that's just a screenshot of the steps. I haven't gotten around to posting the ste…
Comment: You're absolutely correct! I did have an image caption about how this project is a vari…
Comment: Yeah, this is a pretty basic circuit so you shouldn't have any problems, but if you do …
Comment: The most expensive parts of the circuit include the buzzer and the project box, other t…
Comment: Sockets are definitely a great idea because you can take the chip in and out whenever y…
Comment: Anymore what? Any requests in particular
Comment: I just rewired the laser pointer and hooked it up to a simple 5v power supply. This way…
Comment: You could but then the buzzer will only sound when someone is blocking the laser's path…
Comment: Yeah, you'll just need to adjust it to the right resistance to make it work well with y…