{"id":281,"date":"2010-10-13T19:26:49","date_gmt":"2010-10-13T19:26:49","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=281"},"modified":"2012-07-30T09:29:33","modified_gmt":"2012-07-30T13:29:33","slug":"avr-displays-body-temperature-on-a-nokia-3310-lcd","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/avr-displays-body-temperature-on-a-nokia-3310-lcd\/","title":{"rendered":"AVR displays body temperature on a Nokia 3310 LCD"},"content":{"rendered":"<p>This project describes how to measure temperature with Atmega8 and a thermistor and display it on a Nokia 3310 LCD. A thermistor is a device that changes its resistance with temperature. With a proper resistor divider network, the temperature can be measured by measuring the voltage across the thermistor. The voltage across the thermistor is measured by the on-chip ADC of Atmega8. The necessary coefficients to convert the resistance to temperature are given in the manufacturer&#8217;s datasheet of the thermistor. The thermistor used in this project is Vishay NTCLE100E3103JB0 (found at Sparkfun.com).<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Atmega8Thermo3310.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-282 aligncenter\" title=\"Atmega8Thermo3310\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Atmega8Thermo3310.jpg\" alt=\"\" width=\"550\" height=\"360\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Atmega8Thermo3310.jpg 550w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Atmega8Thermo3310-458x300.jpg 458w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/p>\n<p><!--more--><br \/>\nThe firmware for Atmega8 is available for download.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td><script type=\"text\/javascript\">\/\/ <![CDATA[\n     google_ad_client = \"pub-3251335376149574\"; \/* Embedded-Lab_Blog_468x15, created 10\/1\/10 *\/ google_ad_slot = \"5007918417\"; google_ad_width = 468; google_ad_height = 15;\n\/\/ ]]><\/script><br \/>\n<script src=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\" type=\"text\/javascript\">\n<\/script><\/td>\n<td><a href=\"http:\/\/tinkerish.com\/blog\/?p=88\" target=\"_blank\"><strong>Read<\/strong><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>This project describes how to measure temperature with Atmega8 and a thermistor and display it on a Nokia 3310 LCD. A thermistor is a device that changes its resistance with temperature. With a proper resistor divider network, the temperature can be measured by measuring the voltage across the thermistor. The voltage across the thermistor is measured by the on-chip ADC of Atmega8. The necessary coefficients to convert the resistance to temperature are given in the manufacturer&#8217;s datasheet of the thermistor. The thermistor used in this project is Vishay NTCLE100E3103JB0 (found at Sparkfun.com).<\/p>\n","protected":false},"author":1,"featured_media":282,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[47,48,46],"class_list":["post-281","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avr-projects","tag-atmega8","tag-nokia-3310","tag-thermometer"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=281"}],"version-history":[{"count":5,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/281\/revisions"}],"predecessor-version":[{"id":5851,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/281\/revisions\/5851"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/282"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}