{"id":412,"date":"2009-03-10T00:22:22","date_gmt":"2009-03-10T04:22:22","guid":{"rendered":"http:\/\/www.glacialcommunications.com\/news\/?p=412"},"modified":"2009-03-10T18:47:35","modified_gmt":"2009-03-10T22:47:35","slug":"post-weekend-project-update","status":"publish","type":"post","link":"https:\/\/www.glacialcommunications.com\/news\/2009\/03\/post-weekend-project-update\/","title":{"rendered":"post-weekend project update"},"content":{"rendered":"

Well, since issuing my March Manifesto<\/a>, I think I’ve managed to break both rules so far. Excellent! Bear in mind, the parts were semi-unobtanium for cheap (CD4006’s and a 74C922\u00c2\u00a0 – fifty cents apiece!), and the new project is something that isn’t going to happen any time soon (an Arduinome<\/a> – I ordered the shield PCB, and I have a MAX7219. That’s going to be the extent of its progress for quite a while. Must. Clear. Module. Backlog. First.)<\/p>\n

I did make some progress on the USB audio interface, but at the moment, it’s only usable as an incredibly expensive\u00c2\u00a0 USB-powered LED. Not Good. I’ve painstakingly continuity-tested all the traces on the PCB to pins on the PCM2902, and those all check out, but there may be a bridge or something along those lines, or I fried the chip.\u00c2\u00a0 But so far, it’s getting power from USB, the LDO voltage regulator is working, and maybe the IC is doing something? I’m seeing Vccci\/2 on the Vcom pin, but the board isn’t getting recognized by either of the computers I’ve attached it to. Frustrating.<\/p>\n

In a worst-case scenario, I do have another PCB (cost me just as much to get two as it would have one), and another PCM2902 (yay pairs of samples!). So I can either build a second one, try\u00c2\u00a0 the other chip in this one, or some strange combination.<\/p>\n

In preparation for whatever I decide to do, I was looking around the Curious Inventor<\/a> site at some of the surface-mount soldering tutorials, when I found this<\/a>. I then ended up running out to my local fabric store and finding a slightly different model (a Darice Craft Heat Tool<\/a>, which is from an Ohio-based company, and the unit is made in Taiwan, in case anyone is looking and wants to know such things.) I haven’t tried using it to solder anything yet, but I did desolder some surface mount parts from a scrap PCB, and it worked really nicely.<\/p>\n

I also attempted to get some aluminum panels for various projects, but failed – the posted hours for my local Metal Supermarket<\/a> didn’t match reality. I will be going back on Friday.<\/p>\n

And lastly, I came up with some more ideas I’m not implementing any time soon – a smallish “Analog Computer” module (say 4 op-amp’s worth, think this<\/a> but way simpler), and a rather crazy Lunetta panel (not sure if I’ll fully do it the way I envisioned – maybe if I can find an ALU chip (74181 or the like) for cheap…)<\/p>\n","protected":false},"excerpt":{"rendered":"

Well, since issuing my March Manifesto, I think I’ve managed to break both rules so far. Excellent! Bear in mind, the parts were semi-unobtanium for cheap (CD4006’s and a 74C922\u00c2\u00a0 – fifty cents apiece!), and the new project is something that isn’t going to happen any time soon (an Arduinome… Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,42,16],"tags":[],"class_list":["post-412","post","type-post","status-publish","format-standard","hentry","category-arduino","category-electronics","category-synthesizers"],"_links":{"self":[{"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/posts\/412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/comments?post=412"}],"version-history":[{"count":3,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/posts\/412\/revisions"}],"predecessor-version":[{"id":422,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/posts\/412\/revisions\/422"}],"wp:attachment":[{"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/media?parent=412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/categories?post=412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.glacialcommunications.com\/news\/wp-json\/wp\/v2\/tags?post=412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}