Category: Projects

Update

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No action here lately… so that’s a quick update… 1) UsbProg My favourite allround-programmer… I am still developing (selfless- and restlessly) my reflow oven (5 freely programmable phases and 130 profiles storagable on the oven itself… coming soon). Howsoever I put my reflow-controller PCB on a USB-stick with some metal casing… Which did not kill my reflow controller but the UsbProg instead… The mega32 used on the UsbProg must have been completely fried; the bootloader flashed some LED helplessly but my PC didn’t recognize the USB-device anymore. I was unable to flash the IC using my STK500 so … with other words… destroyed. So I ordered a new UsbProg and I exchanged the damaged M32 on the old one, which was a success, it works great again! Here are some pictures of the “birth” of my second UsbProg (click for

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Reflowprofile Designer

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The firmware is almost finished now so, to give it the last touch, I need the matching PC-Software. Because there is no draw-your-profile-on-the-screen-widget for wxWidgets (and I’m obviously too stupid to compile & install some graphing library), I designed one on my own… So. The designer will ‘kinda’ look like this: Click me…

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Dreams

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I have been thinking about an 6DOF-sensor for a long time, and I was planning to use ADIS16100 single-axis gyros from Analog Devices for about 50€ each; which is not exactly “cheap” if you need 3 of them. But lately I found a dual axis gyro by ST at SparkFun; for about $7!! The downturn were the (with about $20) quite high shipping fees to germany. But I found a SparkFun-partner in germany: Elektronikladen sells all SparkFun-products in germany! (Click for bigger version) Packet’s contents… 3 LPY530AR and 3 LPR530AR (and a Catalogue) SparkFun and Elektronikladen LPY530AR – YES That may pose a little problem, but I think i’m up to it (see here) These are the parts a 6DOF-dream consists of: LPY530AR, LPR530AR and MMA7260 I made an Eagle-Lib for the LPY530 LPR530-gyros… DOWNLOAD. Be cautious, I HAVEN’T TESTED

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Reflow news

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So there are some new developments concerning my new reflow control… see for yourself: The new reflow firmware regulates temperature and its derivation using a PID-regulator. Even without overshoot-compensation (which might be added later) it produces an overshoot of just about 5-10°C…

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