Category archive: Electrical Engineering

Bizarre uses of I2C

We use an I2C bus inside of our game to reduce the mess of wires that naturally crops up from a lot of input and output devices. This type of serial bus is used in a multitude of devices. I use it in some more unusual ways than the way it’s normally intended, like adding…

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Capacitive Touch Sensors on an AVR

I’ve received a number of requests about how I do my touch sensors. I decided to finally post the full how-to on it. This is my third in my let’s learn/let’s code series, and my first one where I am combining them into one video (since it was short enough). Source code is available here: https://github.com/cnlohr/magfestbadges/tree/master/basictouch

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Retro Green Monitor loading Retro Hackaday is Retro.

Well, I don’t know if it counts as a submission to retro.hackaday.com, but, I have my AVR with NTSC video out from the black and white demo working on this ridiculously old retro monochrome green monitor. Amazingly enough, even though it is from August 1983, everything worked out of box. This is using my AVR…

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More Failed Attempts at a Chainsaw Engine Power Source

Well, things have been going better now that I’ve used lots of threadlocker, and it appears this other type of coupling works better… I have some work to do, but hopefully I will soon be able to test this out more.

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Trying to use a strobe to balance a hexacopter motor

We’re still working on using this strobe to help balance the motor. We’ve got an accelerometer, too. The results are promising. We’ll be giving more effort next weekend, hopefully.

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