HP-25C Eumulator
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03-20-2016, 01:17 AM
Post: #301
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RE: HP-25C Eumulator
(03-20-2016 12:45 AM)jjohnson873 Wrote: Hi Luigi....I'm using the same pcb layout program that Chris Chung used; Fritzing. It's a nice (free) program, but it's not as powerful as Eagle, Proteus or Altium. I did some poking around in Fritzing and noticed that you can upload "images" for the silkscreen area. I haven't played with this, but there's probably no reason why you couldn't create an image of the HP25 lettering and upload the images, placing them on the proper areas near the buttons and use a black pcb. I'll play around some more with it. If someone on the forum knew where I could get an image of the HP25 function lettering on a flat pdf or PowerPoint file, I may be able to capture those and imbed them into the Gerber file for the NP25. No promises....I do have a regular day job and this is just a hobby for me. ;-) You have to read the very beginning of this thread. That was when I was trying to overlay an image as silkscreen. The PCB fabricator failed on the print. You can see the failed board on the 2nd reply (3rd post on this thread). As Jim explained. Fritzing is an entry level layout program and there are many limitations. The font offered are fixed and there are not many hi-ascii icons to use. The image overlay method, although supported, fail upon fabrication. I am using someone familiar w/ eagle can improve on it. Again the NP-25 is more or less end of life as the bubble LEDs are exhausting. I had tried white on black PCB on the 1st prototype NP41, you can found an image in that thread. Black on white in my opinion is most readable. Although sometimes I like the class white on green, which has a retro look. |
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