{"id":484,"date":"2014-07-27T18:05:02","date_gmt":"2014-07-28T01:05:02","guid":{"rendered":"http:\/\/10.43.101.63:24469\/?p=484"},"modified":"2017-02-21T00:55:26","modified_gmt":"2017-02-21T08:55:26","slug":"first-prototype-of-wireless-temperaturehumidity-sensor","status":"publish","type":"post","link":"https:\/\/aarontc.com\/archive\/2014\/07\/first-prototype-of-wireless-temperaturehumidity-sensor\/","title":{"rendered":"First prototype of wireless temperature+humidity sensor"},"content":{"rendered":"

\"IMG_20140727_181652\"<\/a><\/p>\n

 <\/p>\n

The design is pretty simple – an Atmel ATTiny85 microcontroller talks to a DHT22 single-wire temperature+humidity sensor, and transmits readings once every two seconds via the ZigBee protocol. The next step is to design a small PCB to keep everything together. I’m not sure yet if I want to aim for battery-powered or not. I’m more interested in sample frequency than worrying about whether I have enough outlets or extension cords…<\/p>\n

In the near future I’ll post schematics and source code, probably at Idle Engineers<\/a>. Stay tuned!<\/p>\n","protected":false},"excerpt":{"rendered":"

  The design is pretty simple – an Atmel ATTiny85 microcontroller talks to a DHT22 single-wire temperature+humidity sensor, and transmits readings once every two seconds via the ZigBee protocol. The next step is to design a small PCB to keep everything together. I’m not sure yet if I want to aim for battery-powered or not. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[6],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6PV8H-7O","jetpack-related-posts":[{"id":452,"url":"https:\/\/aarontc.com\/archive\/2013\/12\/open-source-project-of-the-month-zabbix\/","url_meta":{"origin":484,"position":0},"title":"Open Source Project of the Month: Zabbix","author":"Aaron","date":"December 27, 2013","format":false,"excerpt":"It's time again for another Project of the Month! December is a pretty busy month for most people, with holidays to plan\/shop for, using up that remaining vacation time, and other end-of-year tasks. That's why it's particularly nice to leave monitoring your IT infrastructure (or your refrigerator!) to an automated\u2026","rel":"","context":"In "Project of the Month"","block_context":{"text":"Project of the Month","link":"https:\/\/aarontc.com\/archive\/category\/project-of-the-month\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":315,"url":"https:\/\/aarontc.com\/archive\/2011\/12\/linux-is-not-windows\/","url_meta":{"origin":484,"position":1},"title":"Linux is Not Windows","author":"Aaron","date":"December 18, 2011","format":false,"excerpt":"Yesterday, Mark pointed me at the following article, which I feel is quite relevant to most Linux versus Windows debates that go on these days. In particular, the analogies of cars versus motorbikes, and paid support (no community) versus free support (community), seem to do a fantastic job of explaining\u2026","rel":"","context":"In "Linux"","block_context":{"text":"Linux","link":"https:\/\/aarontc.com\/archive\/category\/linux\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/484"}],"collection":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/comments?post=484"}],"version-history":[{"count":4,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/484\/revisions"}],"predecessor-version":[{"id":605,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/posts\/484\/revisions\/605"}],"wp:attachment":[{"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/media?parent=484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/categories?post=484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aarontc.com\/wp-json\/wp\/v2\/tags?post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}