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Very nice build, I like the 3d printed case.I do believe, however, that the TP4056 is a single cell charger and does not work properly for multiple cells."The TP4056 is a complete constant-current/constant-voltage linear charger for single celllithium-ion batteries"src: https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Pr...Other references seem to agreehttps://electronics.stackexchange.com/questions/10...https://www.reddit.com/r/arduino/comments/4iomxp/c...https://learn.adafruit.com/multi-cell-lipo-chargin...
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Nice instructable. I especially appreciate the use of limited tools. So many guides expect you to have a full workshop to do anything.
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Ultrasonic has been shown to have no effect on mosquitos as a repellant:http://www.mosquito.org/faq#ultrasonichttp://www.bbc.com/news/magazine-20669080
I agree that the project is cool. Could be fun for messing with dogs (dog whistle) or making an annoy-a-tron for kids (kid whistle).
Pandora's Box - An Internet Radio player made with a Raspberry Pi!
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