Internet of Coffee!

Monitoring the morning brew with the internet of things.

Hot Coffee (sped up 40 times)

Do you want to know when your coffee is done brewing but are too lazy to walk over to see for yourself?  Do you need to monitor your coffee pot when you are out of town?  Probably not, but here is one solution to the non-problem.  CLICK HERE to see if the coffee is hot, or keep reading to see how to make your own.

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NMEA 0183 Speedometer

I had an email request to find this project from 2010… I updated the code too!

Arduino in Test Mode
Arduino in Test Mode

This project  takes the pulse from a paddlewheel boat speed sensor and makes an NMEA output on the serial port.  It should work with most through-hull speed transducers, and also with windspeed transducers too.  The NMEA stream comes from the arduino serial port, so if you have a USB arduino you can hook it up to a laptop easily.  If you want to hook it up to another NMEA instrument you’ll need something like a MAX232 chip to take the TTL logic from the serial port pins and convert them to RS-232 (or convert to RS-422 to meet the NMEA specification).

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n3m0 the autonomous boat

autonomous boat
n3m0

I have been documenting the build of n3m0, my latest autonomous boat over at hackaday.io.  It has been pretty successful so far, here are some links:

The project page.

I won $1000 in the hackaday prize! Actually $2000!

Feature on hackaday.com

Feature on hackster.io

Someone else is already building another one

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