Last updated on April 30, 2008
 |
Tonight I ended up staying at work until about 8:20pm helping a coworker out with something. It’s not set and he’s on vacation tomorrow, so I’ll end up working on it too. Ah well.
Since I got home too late to go ride my bike I ended up boxing up Ivan’s P3, making a frozen pizza, then watching some TiVo’d stuff and WTVS-HD before wandering back up here to my computer. So, why did I box up the P3? Well, remember the failing PLED post? Yep, it’s bad. While the first one didn’t display very well, the second doesn’t display at all.
I had actually emailed the pictures of the questionable display (1, 2) to the tech support people at Crystalfontz to see if what I was seeing really is indicative of a failing PLED. One of the tech support people replied, confirming that it is what I thought, and suggesting a replacement display. If you’d like to read the whole thread between the tech support person and I, it’s archived as a PNG here.
So, now Ivan is sorting out grabbing a new LCD and then I’ll get back to work on his P3. For now I’ve boxed it up and it’s sitting in a safe place, above ground level, not below any water pipes.
My next (current?) project is now a set of PCBs similar to the RS232 to Eaton Leonard Level Shifter boards which I did last year, but instead accepting ~7VDC – ~40VDC (or straight 5VDC) for the power, with the conversion being handled by a reference implementation of a switching supply. (This is the supply whose ripple is shown here.) The parts are ordered for the first run of them, I just need to wait until they arrive, confirm the footprints, order the PCBs, test, and build.
But for now? I rest.