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Camera: Canon EOS 40D
Exposure: 8 sec (8)
Aperture: f/10
Focal Length: 70 mm
ISO Speed: 100
Exposure Bias: 0 EV
Flash: Flash did not fire
pcb I always thinking about making something out of PCB, which is the base of most of the computers we use today.Taiwanese manufacturers design and produce most of the PCBs today.
All the modules for the new setup 2009 to capture insects in flight are now ready. Just a few software adjusts now.
Seen Here: The PCB all soldered, except the ICSP header (forgot that...)
So, today my PCB for the LED matrix arrived from BatchPCB! For what I paid, the PCB arrived fairly quickly - I ordered it on the 15/02 I believe, and it arrived 11/03 -- 26 days, which is pretty good (they state 19 business days).
The quality is very, very impressive - far better than anything I could pull off at home. The silkscreen and soldermask makes it look really nice, too.
Soldering it was a joy, although there was a LOT to solder and it's all surface mounted.
I had a few problems at first; it wasn't lighting the matrix at all properly but I soon realised with my new design (transistors on the cathodes) I have to write the transistors HIGH to get a LOW on the cathode, so a quick line of code changed to get that working.
Then for some reason the top half of every letter was flipped. It turns out this was my fault: I messed up when making the package for the LED matrix in Eagle, swapping the matrix's 5th cathode for my system's 8th, 6th for 7th, 7th for 6th and 8th for 5th. This was fairly easy to fix in code, however.
Finally USB isn't working to program or communicate, but I can configure the FT232RL chip (after all, it's sending the clock pulse that's driving my ATmega168). I think I have an idea of what's causing this, but I'm not sure yet.
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Nikon N65
Outdated Konica 200 Film
One of my obligatory shots for checking a camera - Panama City Beach skyline from the fishing pier at St Andrews State Park
Moem was cutting a bit of PCB for one of her projects, a circuitboard book cover for a small notebook.
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Plain Graham - after being colored with the spray food coloring. You can imagine variations on this theme where you put down traces (pretzel sticks?) before spraying the green stuff, to mask true printed layers on the board.
Part of the circuitry snacks project: Edible models of functioning electronic circuits. Designed for fun, for geeks, for kids, and for teaching and learning electronics.
A whole slew of PCBs of mine from Laen's most recent PCB order. The gold finish was an unexpected bonus! I don't think I'll be going back to BatchPCB after these excellent results...
Boards include:
...with a grill!
I needed to try out my solder paste and wanted to reflow solder these parts, especially the tricky switch and SD card which would be a pain to solder by hand. I don't have an IR oven or a hot plate (or a reflow machine!) but I do have a standard home grill and figured it would be perfect: the fan moves the air, keeping everything the same temperature while the heating elements are overhead and far away enough to heat uniformly over the surface.
It took 5 minutes from turning on until every joint had reflowed (they started reflowing at 4min) and then I left them for a minute out of the grill to cool down. They seem to have soldered perfectly!
I'm still waiting for the parts for the other two PCBs, but the method seems to be great - and loads quicker than doing it by hand!
P.S. yea, it's not a very well regulated temperature, but I don't have a thermometer that could cope so it's pretty difficult to measure
PCB to build a version of the Atari Punk Console. Several options are built into the bpoard to allow the easy evaluation of external CV or the use of LDR to further bend the sounds or even add on an optional external LFO, and start to create some really strange noises.
Coming soon to Tindie and Ebay form Electro-Resales
It is one PCB but includes two different circuits. Both of them are for a client that wants to put a few of those units to remote control his farms. It is not the full control circuit just the "glue peripherals" of the main unit (plus a bunch of extra sensors just in case that I want to use one of the boards somewhere else).
The dimensions are for a Hammond enclosure and in order to use them as separate circuits I have to cut them using a hex saw. The panelization is be the best choice here but having in mind the low production volume... the cost will increase dramatically.