[chbot] Come on all you retro engineerss!

Michael Pearce mike at kiwacan.co.nz
Thu Jan 27 21:40:30 GMT 2011


I designed and built an automatic gear changer for a drag bike using two
555s ... later did it in a PIC12.

On Jan 27, 2011 1:54 PM, "Charles Manning" <manningc2 at actrix.gen.nz> wrote:


555s... remember them?

Here's an opportunity to dust off your old skills and prove that your brain
hasn't fully calcified.

http://www.555contest.com/

My favourite 555-based device is by metal detector which uses 6 555s. These
days you'd replace that all with a single 8-pin AVR.

-- Charles




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