I came across this oddity while poking around this evening: http://www.waveshare.com/CAPE-for-Arduino.htm
The price is right, the claims sound good, but how does this thing handle 5V arduino peripherals without any active (or passive for that matter) circuitry? The schematic just shows the arduino sockets connected to BBB pins through selectively stuffed 0 ohm resistors. Looks like a good way to burn up a BBB. Am I missing something? Back to my Kicad session... On Thursday, September 15, 2016 at 6:35:24 PM UTC-7, Dave Cole wrote: > > I was in a plant where they make a large number of boards on multiple > lines and I looked at their automatic test fixtures that probe the > boards... and all of them were wire wrapped! So maybe not "that" retro! > :-) > > Dave > > On 9/15/2016 8:28 PM, Ralph Stirling wrote: > > You would have to suggest hand wiring :-). The proto capes I've seen > don't look big > enough for the dip buffer chips and connectors, but I'll look at that > option a little bit more. > I guess I could use generic perf board material while I'm at it. I wonder > if I have enough > wire-wrap sockets and wire to go really retro? > > On Thursday, September 15, 2016 at 5:09:09 PM UTC-7, Charles Steinkuehler > wrote: >> >> On 9/15/2016 5:27 PM, Ralph Stirling wrote: >> > I have decided to use Machinekit running on BBB's in my Manufacturing >> Systems >> > course for >> > senior ME students. I've been using old PC's running Linuxcnc the past >> several >> > years, and >> > the old PC's have been failing. They also take up a lot of space in >> the lab. >> > I've got one >> > Probotix PBX-BB cape, which is perfect for my needs, but Len is out of >> stock on >> > them, and >> > won't have any before his design revision in 3-4 months. I have >> external >> > stepper drivers. >> > >> > Does anybody know of any capes that aren't already featured in the >> wiki? I've >> > looked at >> > all of those, and they are either too expensive, unavailable, or too >> fancy. I >> > just need 3 or >> > 4 channels of buffered step/dir, buffered home inputs, and a few >> gpio's. I've >> > got a design >> > of my own underway, but only have about 3 weeks until I need to have >> these >> > running, and >> > don't think I can pull off my custom design in that time. I need eight >> or nine >> > boards. >> >> You could build your own manually using a prototype cape and a few >> through-hole buffer chips. It sucks soldering 8-9 boards up by hand >> with "flying wires", but it shouldn't take more than a few hours if >> you're decent with a soldering iron and have the right tools (a good >> set of diagonal cutting pliers and a nice wire stripper). >> >> -- >> Charles Steinkuehler >> cha...@steinkuehler.net >> > -- > website: http://www.machinekit.io blog: http://blog.machinekit.io github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to machinekit+...@googlegroups.com <javascript:>. > Visit this group at https://groups.google.com/group/machinekit. > For more options, visit https://groups.google.com/d/optout. > > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
