{"id":270,"date":"2011-01-31T22:27:09","date_gmt":"2011-02-01T06:27:09","guid":{"rendered":"http:\/\/www.roastgeek.com\/wordpress\/?p=270"},"modified":"2011-07-08T17:50:03","modified_gmt":"2011-07-09T01:50:03","slug":"graphing-temperatures-from-the-max6675-on-pic32","status":"publish","type":"post","link":"https:\/\/www.roastgeek.com\/wordpress\/2011\/01\/31\/graphing-temperatures-from-the-max6675-on-pic32\/","title":{"rendered":"Graphing Temperatures from the MAX6675 on PIC32"},"content":{"rendered":"\r\n\t<!-- sfs forms added to the_content - adding as a comment so that it will not display, but will it fool spammers?\r\n\t<br>\r\n\t<br>\r\n\t<form action=\"https:\/\/www.roastgeek.com\/wordpress\/wp-comments-post.php\" method=\"post\" id=\"commentform1\">\r\n\t<p><input name=\"author\" id=\"author\" value=\"\" size=\"22\"  aria-required=\"true\" type=\"text\">\r\n\t<label for=\"author\"><small>Name (required)<\/small><\/label><\/p>\r\n\r\n\t<p><input name=\"email\" id=\"email\" value=\"\" size=\"22\"  aria-required=\"true\" type=\"text\">\r\n\t<label for=\"email\"><small>Mail (will not be published) (required)<\/small><\/label><\/p>\r\n\r\n\t<p><input name=\"url\" id=\"url\" value=\"\" size=\"22\" type=\"text\">\r\n\t<label for=\"url\"><small>Website<\/small><\/label><\/p>\r\n\t<p><textarea name=\"comment\" id=\"comment\" cols=\"58\" rows=\"10\" ><\/textarea><\/p>\r\n\r\n\t<p>\r\n\t<input name=\"comment_post_ID\" value=\"270\" id=\"comment_post_ID\" type=\"hidden\">\r\n\t<input name=\"comment_parent\" id=\"comment_parent\" value=\"0\" type=\"hidden\">\r\n\t<\/p>\r\n\r\n\t<p><input id=\"akismet_comment_nonce\" name=\"akismet_comment_nonce\" value=\"1f74737c40\" type=\"hidden\"><\/p>\r\n\t<\/form>\r\n\r\n\t<form id=\"setupform1\" method=\"post\" action=\"wp-signup.php\" >\r\n\r\n\t<input type=\"hidden\" name=\"stage\" value=\"validate-user-signup\"   \/>\r\n\t<p ><input id=\"akismet_comment_nonce\" name=\"akismet_comment_nonce\" value=\"1f74737c40\" type=\"hidden\"><\/p>\t\t\r\n\t<p>\r\n\t<input id=\"signupblog\" type=\"radio\" name=\"signup_for\" value=\"blog\"  checked='checked' \/>\r\n\t<label class=\"checkbox\" for=\"signupblog\">Gimme a site!<\/label>\r\n\t<br \/>\r\n\t<input id=\"signupuser\" type=\"radio\" name=\"signup_for\" value=\"user\"  \/>\r\n\t<label class=\"checkbox\" for=\"signupuser\">Just a username, please.<\/label>\r\n\t<\/p>\r\n\t<\/form>\r\n\r\n\t<form name=\"loginform1\" id=\"loginform1\" action=\"https:\/\/www.roastgeek.com\/wordpress\/wp-login.php\" method=\"post\">\r\n\t<p>\r\n\t<label for=\"user_login\">User Name<br \/>\r\n\t<input type=\"text\" name=\"log\"  value=\"\" size=\"20\"  \/><\/label>\r\n\t<\/p>\r\n\t<p>\r\n\t<label for=\"user_pass\">Password<br \/>\r\n\t<input type=\"password\" name=\"pwd\"  value=\"\" size=\"20\"  \/><\/label>\r\n\t<\/p>\r\n\t<p class=\"forgetmenot\"><label for=\"rememberme\"><input name=\"rememberme\" type=\"checkbox\" checked=\"checked\"  value=\"1f74737c40\"  \/>Remember Me<\/label><\/p>\r\n\t<p class=\"submit\">\r\n\t<input type=\"hidden\" name=\"testcookie\" value=\"1\" \/>\r\n\t<\/p>\r\n\t<input id=\"akismet_comment_nonce\" name=\"akismet_comment_nonce\" value=\"1f74737c40\" type=\"hidden\">\r\n\t<\/form>\r\n\r\n\r\n\r\n\t-->\r\n\t<p>Turns out graphing temp data is pretty simple.<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.roastgeek.com\/wordpress\/wp-content\/uploads\/2011\/01\/wpid-2011-01-31_22-22-15_1-e1296541795697.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-269\" title=\"Graphing widget using temperature data\" src=\"https:\/\/i0.wp.com\/www.roastgeek.com\/wordpress\/wp-content\/uploads\/2011\/01\/wpid-2011-01-31_22-22-15_1-e1296541795697-300x169.jpg?resize=300%2C169\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/i0.wp.com\/www.roastgeek.com\/wordpress\/wp-content\/uploads\/2011\/01\/wpid-2011-01-31_22-22-15_1-e1296541795697.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.roastgeek.com\/wordpress\/wp-content\/uploads\/2011\/01\/wpid-2011-01-31_22-22-15_1-e1296541795697.jpg?w=500&amp;ssl=1 500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Using the standard Graphics Library from Microchip just to display the output right now. Ultimately it&#8217;s working pretty much as necessary to show temperature graphically. I need to be able to adjust the top\/bottom a little better using some formulas to come up with a scaling percentage dynamically to make it fit the minimum and maximum possible temperatures into the display without squishing it too much. Additionally I need to decide how quickly to scroll from left to right and possibly a way to redraw scrolling backwards to see starting graphs and archive the raw data to be reanalyzed later possibly zooming etc.<\/p>\n<p>The input to the system is using a development board by Ryan J McLaughlin (dot com). The board was designed to be connected up to Arduino microprocessors but I figured out it could be plugged up directly to a PIC32 too. I decided I needed an easy to interface board with a thermocouple socket already on the board and this one fit the bill nicely.<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" style=\"display: block; margin-right: auto; margin-left: auto;\" src=\"https:\/\/i0.wp.com\/www.roastgeek.com\/wordpress\/wp-content\/uploads\/2011\/01\/wpid-2011-01-31_22-34-56_153.jpg?w=800\" alt=\"image\" \/><\/p>\n<p>Right now it blinks the status LED every time it makes a reading which is somewhere around 2-3 times per second.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turns out graphing temp data is pretty simple. Using the standard Graphics Library from Microchip just to display the output right now. Ultimately it&#8217;s working pretty much as necessary to show temperature graphically. I need to be able to adjust the top\/bottom a little better using some formulas to come up with a scaling percentage dynamically to make it fit the minimum and maximum possible temperatures into the display without squishing it too much. Additionally I need to decide how quickly to scroll from left to right and possibly a way to redraw scrolling backwards to see starting graphs and \u2026 <a class=\"continue-reading-link\" href=\"https:\/\/www.roastgeek.com\/wordpress\/2011\/01\/31\/graphing-temperatures-from-the-max6675-on-pic32\/\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":1,"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_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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[9,7,23,22,8,32,33],"tags":[59,129,60,27,14,29],"class_list":["post-270","post","type-post","status-publish","format-standard","hentry","category-electronics","category-general","category-lcd","category-pic32","category-roaster","category-sensors","category-temperature-sensors-electronics-roaster","tag-max6675","tag-pic32","tag-spi","tag-temperature","tag-testing","tag-thermocouple"],"wppr_data":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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