Grove - 2-Coil Latching Relay $12.84 The Grove latching relays are interesting because they take a pulse to toggle their state, which it maintains even after a power cycle. GrovePi Starter Kit for Raspberry Pi $116.87 Carrying a GrovePi+ board together with 12 carefully selected Grove sensors with 10 pieces cables, this starter kit gets […]
Not Your Average Door Bell
Solar botics
November 25, 2011
Wireless doorbells have a tendency to... suck. I speak from personal experience on such matters. When they fail to get my attention while at home, apathy generally wins out and inevitably forces me to head down to the FedEx/UPS depot to pick up my missed package. David Watson, a man of action, took matters into his own hands.
David built a custom door bell that strikes children's resonator bells using a custom designed Arduino clone and our GM10 geared pager motors, inspired by the Solar Xylophone featured in Make Magazine. Utilitizing the home's existing wiring for a doorbell hidden behind the installed wireless solution, David ended up with something far more elegant that we think is just fantastic:
Keep up the good work David!
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Aleph Objects (Lulzbot) is still alive! ...
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Book Project Parts Bundles
We've had many requests to sell the parts needed to build the robots described in the books that we carry. You are now able to purchase the individual components needed to build your bot, but you're not required to take them all(Sorry, no instructions -- that's what the book is for!). If you've got resistors […]
Wednesday Cool Links, and Thanks for the...
Hello! Today I actually have stuff to say, and this time these are the news on the Useless Box. Looks like it's time to receive thanks! Remember back in November 2012 when we decided to donate $1100 to Plan Canada from a percentage of past sales of Useless Boxes? They sent us a nice thank […]
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.