{"id":3378,"date":"2013-03-01T18:02:49","date_gmt":"2013-03-02T00:02:49","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=3378"},"modified":"2013-03-01T18:02:49","modified_gmt":"2013-03-02T00:02:49","slug":"old-lcd-panels","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=3378","title":{"rendered":"Old LCD panels"},"content":{"rendered":"<p>[Today&#8217;s run: Limerock Road, 4 miles]<\/p>\n<p>I&#8217;ve been letting my GPSDO measuring go on for about 3 weeks now.\u00a0 And The BeagleBone\/weather station thing is running along.\u00a0 So I took a little break and dug out something I have had on the shelf for about 3 years.<\/p>\n<p>I was at a hamfest in Ft. Collins, Colorado, probably 3-4 years ago, and I bought two small LCD panels.\u00a0 They are marked G121CB1P00.\u00a0 Turns out that there is information about these on the internet.\u00a0 I was able to find the datasheet and how to program them.\u00a0 They are pretty old technology and probably not fooling around with very much.<\/p>\n<p>But fooling around is what I do.<\/p>\n<p>So I was looking at them and wondering what it would take to make them go.\u00a0 I really like this BeagleBone thing, being able to write shell scripts or perl scripts to do pin-by-pin I\/O.\u00a0 But the BeagleBone uses lower voltage for GPIO operations and this LCD needs 12 lines with 5 volt logic.\u00a0 That would be kind of a pain.\u00a0 I do have some small PIC processors that would do the job.\u00a0 But then I have to figure out how to write a PIC program and get the thing programmed up.\u00a0 I don&#8217;t know if I am that ambitious just to see the LCD light up.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[Today&#8217;s run: Limerock Road, 4 miles] I&#8217;ve been letting my GPSDO measuring go on for about 3 weeks now.\u00a0 And The BeagleBone\/weather station thing is running along.\u00a0 So I took a little break and dug out something I have had on the shelf for about 3 years. I was at a hamfest in Ft. Collins, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3378","post","type-post","status-publish","format-standard","hentry","category-ham-radio"],"_links":{"self":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3378"}],"version-history":[{"count":1,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3378\/revisions"}],"predecessor-version":[{"id":3379,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/3378\/revisions\/3379"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3378"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}