{"action":"created","issue":{"url":"https://api.github.com/repos/captainkirkby/Gears/issues/39","labels_url":"https://api.github.com/repos/captainkirkby/Gears/issues/39/labels{/name}","comments_url":"https://api.github.com/repos/captainkirkby/Gears/issues/39/comments","events_url":"https://api.github.com/repos/captainkirkby/Gears/issues/39/events","html_url":"https://github.com/captainkirkby/Gears/issues/39","id":64087541,"number":39,"title":"New Wider Fingers","user":{"login":"captainkirkby","id":3489773,"avatar_url":"https://avatars.githubusercontent.com/u/3489773?v=3","gravatar_id":"","url":"https://api.github.com/users/captainkirkby","html_url":"https://github.com/captainkirkby","followers_url":"https://api.github.com/users/captainkirkby/followers","following_url":"https://api.github.com/users/captainkirkby/following{/other_user}","gists_url":"https://api.github.com/users/captainkirkby/gists{/gist_id}","starred_url":"https://api.github.com/users/captainkirkby/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/captainkirkby/subscriptions","organizations_url":"https://api.github.com/users/captainkirkby/orgs","repos_url":"https://api.github.com/users/captainkirkby/repos","events_url":"https://api.github.com/users/captainkirkby/events{/privacy}","received_events_url":"https://api.github.com/users/captainkirkby/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/captainkirkby/Gears/labels/documentation","name":"documentation","color":"eb6420"},{"url":"https://api.github.com/repos/captainkirkby/Gears/labels/enhancement","name":"enhancement","color":"84b6eb"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2015-03-24T20:04:32Z","updated_at":"2015-03-28T19:22:28Z","closed_at":null,"body":"Updating the software to use new hardware: wider fingers machined and sent to us by Martin.  The idea of these is more edges gives us more accuracy in timing and a notch in the middle gives us a pendulum height measurement as well.\r\n\r\nThings we need to change (following data flow):\r\n\r\n1. Install Wider Fingers. ✓\r\n2. Increase length of MCU raw buffer to record entire swing (wider now). ✓\r\n  * Increase max number of tries in ADC test. ✓\r\n3. Modify Logger to accept new data size.\r\n4. Modify Fit to process new data size and shape.\r\n5. Modify Server to serve new data size (?).\r\n\r\n![Wider Fingers](https://cloud.githubusercontent.com/assets/3489773/6811410/d09a038c-d224-11e4-85ee-bbc0b908d660.png)\r\n"},"comment":{"url":"https://api.github.com/repos/captainkirkby/Gears/issues/comments/87287818","html_url":"https://github.com/captainkirkby/Gears/issues/39#issuecomment-87287818","issue_url":"https://api.github.com/repos/captainkirkby/Gears/issues/39","id":87287818,"user":{"login":"captainkirkby","id":3489773,"avatar_url":"https://avatars.githubusercontent.com/u/3489773?v=3","gravatar_id":"","url":"https://api.github.com/users/captainkirkby","html_url":"https://github.com/captainkirkby","followers_url":"https://api.github.com/users/captainkirkby/followers","following_url":"https://api.github.com/users/captainkirkby/following{/other_user}","gists_url":"https://api.github.com/users/captainkirkby/gists{/gist_id}","starred_url":"https://api.github.com/users/captainkirkby/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/captainkirkby/subscriptions","organizations_url":"https://api.github.com/users/captainkirkby/orgs","repos_url":"https://api.github.com/users/captainkirkby/repos","events_url":"https://api.github.com/users/captainkirkby/events{/privacy}","received_events_url":"https://api.github.com/users/captainkirkby/received_events","type":"User","site_admin":false},"created_at":"2015-03-28T19:22:28Z","updated_at":"2015-03-28T19:22:28Z","body":"Looks like 3328 is too much!\r\n\r\nHere is a distribution graph of the time of each major operation: (Recording, read BMP, read GPS, send via UART) with 3328 and 3072 samples.  Note that the recording section will expand as it waits for a rising edge.\r\n\r\n\r\nFigure 1:\r\n![mcu time distribution per major operation - 3328](https://cloud.githubusercontent.com/assets/3489773/6882522/cbeeab44-d544-11e4-8cfe-457c10ab88b6.jpg)\r\n\r\nFigure 2:\r\n![mcu time distribution per major operation - 3072](https://cloud.githubusercontent.com/assets/3489773/6882524/d5b69862-d544-11e4-9465-2a90b4f70025.jpg)\r\n\r\nScope Captures:\r\n3328\r\n![img_3280](https://cloud.githubusercontent.com/assets/3489773/6882531/ee6bb662-d544-11e4-8438-e00ab294ef1d.JPG)\r\n3072\r\n![img_3281](https://cloud.githubusercontent.com/assets/3489773/6882532/f1fd7cb6-d544-11e4-9f9a-9afe5010eef7.JPG)\r\n\r\n"}}