{"id":3601,"date":"2019-04-19T21:40:15","date_gmt":"2019-04-20T04:40:15","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T07:00:00","slug":"3601","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/3601","title":{"rendered":"My LEGO EV3 program is not working. How do I start troubleshooting?"},"content":{"rendered":"<p>In most cases, the LEGO EV3 program does exactly what you have programmed it to do. If you are having trouble, follow these troubleshooting steps:<br \/>\n1.  Look over your program block by block and review your process map to make sure they match.<br \/>\n2.  If there isn&#8217;t anything obviously wrong with your program, it is often helpful to start with a simple version of your program. Test the simple version, and then add complexity step by step, testing the program with each addition.  <\/p>\n<p>A technique that we use to test programs is to add a Sound block (make different sounds for true and false cases of a switch) or a Display block (to show sensor readings). These blocks can help you troubleshoot by adding feedback that will help you see how the program is functioning.<\/p>\n<p><a href=\"\/product\/lego-mindstorms-education-ev3-core-set-with-charger\/\">LEGO<sup>&reg;<\/sup> MINDSTORMS<sup>&reg;<\/sup> Education EV3 Core Set with Charger<\/a> (<nobr>LEGO-EV3-CORE<\/nobr>)<br \/>\n<a href=\"\/product\/nxt-sensor-adapter\/\">NXT Sensor Adapter<\/a> (<nobr>BTA-NXT<\/nobr>)<br \/>\n<a href=\"\/product\/vernier-engineering-projects-with-lego-mindstorms-education-ev3-electronic-version\/\"><i>Vernier Engineering Projects with LEGO&reg; MINDSTORMS&reg; Education EV3<\/i><\/a> (<nobr>EP-EV3-E<\/nobr>)<br \/>\n<a href=\"\/til\/3339\/\">LEGO\u00ae Mindstorms\u00ae EV3 Troubleshooting and FAQs<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>In most cases, the LEGO EV3 program does exactly what you have programmed it to do. If you are having trouble, follow these troubleshooting steps:&#8230;<\/p>\n","protected":false},"author":8983,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[2613,3672,2614,3142],"class_list":["post-3601","post","type-post","status-publish","format-standard","hentry","tag-bta-nxt","tag-ev3","tag-lego","tag-mindstorms"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/8983"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=3601"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3601\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=3601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=3601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=3601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}