Stop that Flash Jitter

Now I have written a full, interrupt driven sketches for an arduino running some traffic signals. An extract is shown below:-

  if ((_state == PHASE_GREEN) && (_phase_change == PHASE_CHANGE_TO_RED)) {
    // On Green want Red
    if (ran_min_green()) {
      _state = PHASE_POST_GREEN;
      _phase_change = PHASE_CHANGE_NONE;
      _time_since_green_milliseconds = 0;
      _time_on_current_state_milliseconds = 0;
      if (debug_to_serial) {
        Serial.println("Leaving Green");
      }
    }
  }

However for this project ...

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Pelican

I been updating the PCB for my educational board. The back of the PCB contains a link to this page. The following links are for the software used on the board and the hardware of the PCB itself.

https://github.com/bmsleight/cuffelink/tree/master/software/micro/arduino/tiny_pelican https ...

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Had my Cuffelinks on all day

Now that I finished the first full working prototype – I did wear my cuffelinks all today today. I do work with a bunch of engineers.[http://www.tfl.gov.uk/corporate/media/newscentre/metro/23215.aspx[(https://web.archive.org/web/20120627194313/http://www.tfl.gov.uk/corporate/media/newscentre ...

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Adding RV-8564-C2 break-out board

I need to write some software for the very, very small Real-Time-Clock chip, the RV-8564-C2. It is small (5.0 x 3.2 x 1.2mm), low-power chip with a with built-in crystal. Ideal for a cufflink, but far from ideal to wire in to a breadboard.

I knocked-up a ...

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Another Prototype Delivered

Another package in the post, the new models have arrived in physical form

Or in side view:-

I like that the “engraving” of cuffelink.com has come out very well. Although the plastic connector is still a little to high as the smaller threading is not working. I am waiting ...

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Ordering Electronics

The next batch of electronics ordered. Mouser, Rs and bizarrely (from the great bazaar) Amazon. Whilst the parts are being delivered I need to right a correct Bill Of Materials at some point.

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Physical Prototype delivered

Got my latest prototype delivered. As ever ordered from shapeways.com, with quicker delivery than expected.

I think the cufflinks look great:-

The three main parts are the cufflink body, the purple plastic connector and the cufflink lower. As always the source files are in the repository. The cufflink lower ...

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