{"id":1995,"date":"2015-01-23T00:26:51","date_gmt":"2015-01-23T00:26:51","guid":{"rendered":"http:\/\/41j.com\/blog\/?p=1995"},"modified":"2015-01-23T00:26:51","modified_gmt":"2015-01-23T00:26:51","slug":"msp430watch2-barometer-wifi-pcb-design","status":"publish","type":"post","link":"https:\/\/41j.com\/blog\/2015\/01\/msp430watch2-barometer-wifi-pcb-design\/","title":{"rendered":"MSP430Watch2 &#8211; Barometer and Wifi (PCB Design)"},"content":{"rendered":"<p><a href=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_1.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_1.png\" alt=\"msp430watch2_1\" width=\"411\" height=\"500\" class=\"aligncenter size-full wp-image-1999\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_1.png 411w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_1-247x300.png 247w\" sizes=\"auto, (max-width: 411px) 100vw, 411px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_2.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_2.png\" alt=\"msp430watch2_2\" width=\"400\" height=\"500\" class=\"aligncenter size-large wp-image-2000\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_2.png 400w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2_2-240x300.png 240w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>A long while ago, I played with an <a href=\"http:\/\/41j.com\/blog\/2011\/09\/msp430-watch\/\">hacked together watch, based on the msp430<\/a>. Recently I&#8217;ve been playing with a few interesting parts, the <a href=\"http:\/\/41j.com\/blog\/2014\/12\/esp8266-notes\/\">esp8266<\/a>, an interesting <a href=\"http:\/\/41j.com\/blog\/2014\/11\/msp430-with-st7032i-now-working\/\">I2C LCD<\/a> and a <a href=\"http:\/\/41j.com\/blog\/2015\/01\/bmp180-barometric-pressure-sensor\/\">cheap barometric sensor<\/a>.<\/p>\n<p>I decided to throw all these components together in a watch layout, just for fun! The PCBs are now out to fab and I&#8217;ll update this post when I&#8217;ve built everything up. I&#8217;m not sure I&#8217;ll actually place the esp8266 and if I do, for any kind of sensible power consumption it would need to be off most of the time.<\/p>\n<p>The schematic is below, and you can also find everything on github <a href=\"https:\/\/github.com\/new299\/msp430watch\">here<\/a>.<\/p>\n<p><a href=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2.png\" alt=\"msp430watch2\" width=\"990\" height=\"631\" class=\"aligncenter size-full wp-image-1996\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2.png 990w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/msp430watch2-300x191.png 300w\" sizes=\"auto, (max-width: 990px) 100vw, 990px\" \/><\/a><\/p>\n<h2>Notes<\/h2>\n<p>The switch used:<br \/>\n<a href=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/switch.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/switch.jpg\" alt=\"switch\" width=\"492\" height=\"506\" class=\"aligncenter size-full wp-image-1997\" srcset=\"https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/switch.jpg 492w, https:\/\/41j.com\/blog\/wp-content\/uploads\/2015\/01\/switch-292x300.jpg 292w\" sizes=\"auto, (max-width: 492px) 100vw, 492px\" \/><\/a><\/p>\n<p>Other footprints are from the Kicad libraries.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A long while ago, I played with an hacked together watch, based on the msp430. Recently I&#8217;ve been playing with a few interesting parts, the esp8266, an interesting I2C LCD and a cheap barometric sensor. I decided to throw all these components together in a watch layout, just for fun! The PCBs are now out [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-1995","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1RRoU-wb","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/1995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/comments?post=1995"}],"version-history":[{"count":3,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/1995\/revisions"}],"predecessor-version":[{"id":2002,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/posts\/1995\/revisions\/2002"}],"wp:attachment":[{"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/media?parent=1995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/categories?post=1995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/41j.com\/blog\/wp-json\/wp\/v2\/tags?post=1995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}