{"id":4565,"date":"2014-10-23T19:45:44","date_gmt":"2014-10-24T00:45:44","guid":{"rendered":"http:\/\/w0ep.us\/OM\/?p=4565"},"modified":"2014-10-23T19:45:44","modified_gmt":"2014-10-24T00:45:44","slug":"soldering-little-bitty-parts","status":"publish","type":"post","link":"http:\/\/w0ep.us\/OM\/?p=4565","title":{"rendered":"Soldering little bitty parts"},"content":{"rendered":"

[Yesterday: 3.4 miles, today: 0]<\/p>\n

Parts arrived in the mail yesterday and I fired up the old soldering iron to put them on the Si5351A Breakout Board designed by Jason, NT7S which I received a few days ago.<\/p>\n

I discovered that I pulled the trigger a bit too soon on my parts order, having forgotten to get one value of capacitor and one value of resistor.\u00a0 But I was able to find some useable parts in my junkbox on an old CD-ROM controller board.<\/p>\n

This thing I’m soldering on uses surface mount parts.\u00a0 A few years ago I was able to pick up a low power stereo microscope and that’s what I use when I am working on these things.\u00a0 Somewhere around here I have a more pointy tip for my soldering iron, but I don’t know where, so I just muddled along with the fat tip.<\/p>\n

I got everything all soldered up.\u00a0 Then I decided I wanted to see if it worked.\u00a0 So I found a web page about using the I2C buss on a BeagleBone.\u00a0 It looked like I could run a couple of commands to see if the new board was listening on the buss.\u00a0 When I tried that, my BeagleBone went dead.\u00a0 It turned out that my new board had a direct short from Vcc (positive voltage supply) to ground.\u00a0 That’s bad.\u00a0 I’m glad I didn’t fry anything.<\/p>\n

So.. it turned out that I had soldered the crystal part on all four corners. And that was different from the picture of Jason’s board.\u00a0 And that caused the short circuit.\u00a0 I ended up taking about 1\/4 of the parts back off of the board to figure this out.<\/p>\n

To fix the short, I used my dremel tool with cutoff wheel to disconnect the crystal from the Vcc line.\u00a0 It made a bit of a gash on the PC board, but that’s what needed to happen.<\/p>\n

I got everything soldered back together and now the board is talking to the BeagleBone on the I2C buss like it is supposed to.<\/p>\n

I don’t know much about how to drive the thing.\u00a0 Jason has some programming for the Arduino which is supposed to do it.\u00a0 So I got my Arduino Nano going again with the simple LCD example.\u00a0 I think my next step is to get the Arduino, LCD and a rotary encoder going all together.\u00a0 Then I will have a way to control the new gizmo.\u00a0 (I really need to look at Jason’s program to see what it requires.)<\/p>\n

I took this picture holding the camera up to the eyepiece of my microscope.<\/p>\n

\"GE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

[Yesterday: 3.4 miles, today: 0] Parts arrived in the mail yesterday and I fired up the old soldering iron to put them on the Si5351A Breakout Board designed by Jason, NT7S which I received a few days ago. I discovered that I pulled the trigger a bit too soon on my parts order, having forgotten […]<\/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-4565","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\/4565","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=4565"}],"version-history":[{"count":1,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4565\/revisions"}],"predecessor-version":[{"id":4567,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/4565\/revisions\/4567"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4565"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}