/products/arduino/b/blog/posts/roadtest-internet-of-holiday-lights-apartment-lighting-extravaganza-3-lcd-screen-learningSlowly working away on my Arduino learning and project for the Internet of Holiday Things RoadTest. Running into some issues on the most basic learning steps such as making an LCD screen work. Maybe you have some suggestions? I got this LM041 d...en-USTelligent Community 12https://community.element14.com/products/arduino/b/blog/posts/roadtest-internet-of-holiday-lights-apartment-lighting-extravaganza-3-lcd-screen-learningTue, 30 Dec 2014 08:03:42 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1a2c5b72-93e8-4846-8b69-e1365500fe1emcb11<p>Jordan</p><p>LCD&#39;s have very basic processors on board.</p><p>They rely on a power reset when the configuration changes, and most libraries only use 4 of the 8 data lines.</p><p>&nbsp;</p><p>Removing wires without setting them high (or low) could easily cause them to be in an unknown state, so the display could easily get confused.</p><p>&nbsp;</p><p>There is an example which should get you up and running.</p><p>&nbsp;</p><p>&nbsp;</p><p>mark</p><img src="https://community.element14.com/aggbug?PostID=19590&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">