Tag: DIY
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Magical LiPo tree
Since LiPo batteries are potentially dangerous, they can not be just put into garbage. They have to be properly handled, utilized, before they can be safely thrown out. I will write more on this topic later. Here is only a picture of my magical LiPo tree. Knife, electrical connector, 12V halogen lightbulb, some sand, a flowerpot…
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Raspberry Pi: reset external I2C devices (not only I2C)
Electronic, and specially computerized, devices likes to hang from time to time. There are many reasons: software bug, hardware error, voltage drop, interference, too long wire, random incident. I’ve learned this hard way during work on my Raspberry Pi based weather station. From time to time external DTH22 temperature/humidity sensor refused to work. Only solution…
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Raspberry Pi + MOSFET = High power switch
With all the possibilities, Raspberry Pi requires additional hardware to turn on and off any additional hardware. GPIOs built in power limit is low: 3.3V, 16mA per GPIO, but not more that 50mA total). And while it might be enough to light a small LED, it is not enough for anything else. Forget about motors,…
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DIY FPV RC Plane with foam board – The RedCruiser Project
Few months ago I’ve wrote about my first handmade Depron airplane. It was cool design. Super simple, with KFm-2 airfoil, durable and easy to fly. But it had few serious flaws: That’s why, I have build a second foamboard airplane. This time with pusher propeller mounted on a tower behind wing. Wing is almost the…
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Depron RC Plane Build – Everything You Need to Know
How hard it is to build a RC plane without plans and starter kits? To do it in “Trust me, I’m an engineer” style. In mid June I’ve decided to give it a try and right now I can tell: it’s hard, but not that hard as one might imagine. All the problems I’ve faced…