tag:blogger.com,1999:blog-11218003.post9121592776892291344..comments2024-02-24T07:59:10.181-08:00Comments on Trampled by Geese: Oh the many things you can do with onion skins and more mystery projectTrampledbyGeesehttp://www.blogger.com/profile/00280685094722276939noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-11218003.post-23466438902886046162012-03-18T10:54:51.568-07:002012-03-18T10:54:51.568-07:00Your onion-dyed yarn is such a beatiful, warm, glo...Your onion-dyed yarn is such a beatiful, warm, glowing yellow - gorgeous!Josianehttp://english.josianericher.com/noreply@blogger.comtag:blogger.com,1999:blog-11218003.post-37350711398831486332012-03-18T08:16:24.975-07:002012-03-18T08:16:24.975-07:00I'd suggest starting with instructions for som...I'd suggest starting with instructions for something related to what you are doing. Eg. http://www.pokingthingswithsticks.com/projects/bicycle-iphone-and-usb-charging/the-generator/Natalie Freedhttps://www.blogger.com/profile/04801246985455001749noreply@blogger.comtag:blogger.com,1999:blog-11218003.post-9009898952053134432012-03-18T08:13:27.973-07:002012-03-18T08:13:27.973-07:00The black dot is probably a microcontroller, cover...The black dot is probably a microcontroller, covered in resin or something like that to protect it. Could be a transistor (which allows a small change in voltage to control a larger change in voltage, so that when the light changes the resistance of one part of the circuit and thus the voltage flowing through there, current is allowed to flow to the light in another part of the circuit.<br /><br />There is likely a "light dependent resistor" or "phototransistor" somewhere to detect when it gets dark, they look like this:<br />http://www.google.com/search?q=light+dependent+resistor&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=GvplT8C0Fuj20gGFreTGCA&biw=1097&bih=1074&sei=HPplT4rNNcPb0QHNqdDnAQ<br />Or could look like a dark LED, like below:<br />http://www.evilmadscientist.com/article.php/nightlight<br />(btw they're wiring everything up in a funny way rather than putting it on a board because they're trying to get it all on a coin cell battery, so perhaps ignore that part!)Natalie Freedhttps://www.blogger.com/profile/04801246985455001749noreply@blogger.com