Well, we've found the ringleaders in this little impromptu telecommunications insurrection and took them out back, where we switched from our standard 'beat with a metaphorical hammer' to 'beat with an real hammer'. Which worked so well, actually, that our phones are now back up and behaving themselves. We can now take calls without any […]
Circuit: Stepper Motor
Dave Hrynkiw
July 12, 2007
This is a neat little one-chip circuit we originally tuned for use with our "SM1" Stepper motors. We've presently sold out of the motor, but this circuit has proved to be a good unidirectional (1-way) driver for small stepper motors. Parts required are:
- 74AC240 Octal buffer chip
- 4 x CP0.1µF capacitors
- 100k resistor
- 2 x 47k resistors
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Wednesday Links: Smile TV, New Materials...
Brief summary of today's short issue: it is about squishy mice robots that feed on the dark matter, live in weird motors and make TVs smile. Smile TV Pretty retro-looking 4-legged TV leaves you smiling like an idiot in order to watch anything. (Via Designboom) How Squishy Would You Like Your Robot? Finally science moving […]
Calgary Mini Maker Faire Ticket Giveaway...
We've got two pairs of weekend passes for the Calgary Mini Maker Faire taking place this weekend up for grabs. To enter, send an email to it@solarbotics.com with the subject of "I <3 Solarbotics" to enter. Two winners will be selected Friday the 13th @ Noon.
Sumovore 3rd Place at PDXBot!
Just browsing through the results of the last PDXBot in Portland (if you ever get the chance, check it out - it's a quality gig). Anyways, I noticed that the Sumovore "Enterprise" entered by "Azalia Middle School comander" won 3rd place in the Amateur class! Well done!
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Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.