{"id":834,"date":"2016-04-04T01:32:32","date_gmt":"2016-04-04T06:32:32","guid":{"rendered":"https:\/\/blogs.discovery.wisc.edu\/wearable2016\/?p=834"},"modified":"2016-04-04T01:34:10","modified_gmt":"2016-04-04T06:34:10","slug":"weekly-update-3-14","status":"publish","type":"post","link":"https:\/\/blogs.discovery.wisc.edu\/wearable2016\/2016\/04\/04\/weekly-update-3-14\/","title":{"rendered":"Weekly Update #3"},"content":{"rendered":"

\"test<\/a><\/p>\n

Done this week:<\/strong><\/p>\n

The test poncho is sewn, which gives me a sense of size and lets me test for weight.<\/p>\n

I’ve tested all the candidate fasteners as parts of simple circuits (lighting a single LED), and they all work fine. \u00a0Some of the stronger magnets require a fair effort to separate, which may be something to keep in mind\u00a0— the garment may need reinforcement wherever they’re sewn in, and the\u00a0module cases may need to be shaped to allow for enough grip.<\/p>\n

 <\/p>\n

Issues:<\/strong><\/p>\n

Still deciding what the textile part should look like. \u00a0The current test poncho helps gives a feel for what the final size should be (it’s a bit small), but the pattern and fabric need to be decided.<\/p>\n

Considering printing a layer of conductive ink\u00a0on a fabric middle\u00a0layer, and\u00a0having the outer layer’s pattern reflect the printed traces?<\/p>\n

 <\/p>\n

A plan for the next\u00a0week of work:<\/strong><\/p>\n

Make a test case, and test it on the test poncho.<\/p>\n

Decide on the final hardware, possibly purchase additional. (a raspberry pi 3? some adafruit trinkets?)<\/p>\n

Maybe rig a trinket, or whatever else is on hand, as an I2C slave.<\/p>\n

 <\/p>\n

What percentage would you estimated that you have completed for your project?<\/strong><\/p>\n

About 40% to the baseline — a case\u00a0that sticks to a garment while both do\u00a0something electronic, but can be removed for charging.<\/p>\n

There’s a lot of polish and embellishment\u00a0possible beyond that 100%, though.<\/p>\n

 <\/p>\n

How much has the project changed since your initial pitch?<\/strong><\/p>\n

Pretty much the same, though a bit more fleshed out now.
\nWhat major hurdles do you have left?<\/strong><\/p>\n

Biggest hurdle: Gotta make a poncho.<\/p>\n

 <\/p>\n

I also need to decide how things not built to use I2C can be rigged to do so. \u00a0Worst case is a trinket with it’s own battery, best case is probably a trinket drawing power from the central\u00a0module.<\/p>\n

 <\/p>\n

Then I need to decide what everything does.<\/p>\n

The baseline is having a central “heart” module that\u00a0both can be removed and possibly repositioned.<\/p>\n

Then we add other modules.\u00a0\u00a0Some ways these could go:<\/p>\n