I'm sending off about one order every 3 weeks to the fab house OurPCB. I sometimes annotate parts in a schematic so I can remember where to find them. Easiest thing is when you have a spare 20 mins, scroll quickly through each menu and make a mental note of what is there. Parts always seem to be there but are very hard to find. That takes 3-4 steps but gives the smallest board possible. I open a new project, open a new schematic, draw it up, then open a board, move all the components onto the board in random places, then put them near each other kind of similar to the schematic, then autoroute, then shrink everything a bit, then rip up and re-autoroute, and keep shrinking till it takes several minutes to optimise. Don't close down one then keep working on the other. It is one of those programs with a steep learning curve but worth it in the end.įorward back annotation - this can be fixed (as already stated) by always having the board and the schematic open together. Nothing really decided yet, but however it goes the PICAXE community should benefit. Firmware free to download, possibly Open Source. The model would probably be to sell PCB's which can be used with PICAXE's, bare for those who can get the parts, kits or assembled for those who want that. I am vaguely hoping I might be able to create some sort of mini-business out of this and I'll have to talk to those who have offered help with regards to the commercial aspects of board design, and that is off-topic for this forum. How does $20 for a TV display DC-80MHz, 8K samples, pre-trigger and all the other gubbins sound ? Slightly further off-topic but still PICAXE related, a really cheap 16-channel Logic Analyser is something I'd like. Projects envisaged include things like TV text display ( CVBS, 40x16 PAL, 40x13 NTSC, 16 colour ) and VGA monitor display, but 'anything really', as long as it enhances the PICAXE experience. I'm looking at leveraging its abilities for the PICAXE, so it's not entirely off-topic, and the way I see it is if we're having to buy components from A to achieve our goals, then buying something which does the job from B is no different, and even better when cheaper. This is all part of "PICAXE meets the Dark Side", using the spinning thing from 'the competition'. I'll probably create a new version which is more compact with an accurate package outline so please don't upload it to the Eagle Library Download page. Not perfect ( schematic symbol is far too big and I'm not sure about the package outline being accurate ) but here we go. As to the stereo jack, well, I suppose one has to learn library creation sometime. Tom2000 nailed the 3-pin keyed-Molex, thanks. Thanks for all the help and encouragement. Does anyone know of any commercial firms which will take Eagle schematics and create a layout once sockets and other major components have been placed ? I've come to the conclusion ( again ) that I am absolutely no good at routing layout, and I'm getting plenty of practice as every time the consistency error occurs I have to delete the board and start again. I know I can hack the latter with a standard 3-pin header, but it would be nice to have a silk screen which made the board easy to assemble. ġ) Where's the library for the 3.5mm download jack ?Ģ) Where's the library for the 3-pin keyed-molex download header ? So, asked many times before but no useful answers I could find. If I can get the schematic complete that will be a major step forward. No forward/backward annotation will be performed! Please contact CadSoft" errors I was suffering from last time I tried to do a PCB a year ago, but I intend to persevere this time. I'm still getting the same old, "Consistency lost between schematic and board.
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