These would probably work. I have used the 5-pin version. https://www.ebay.com/itm/JST-1-25mm-Pitch-Mini-3-Pin-Female-Connector-wire-15cm-Male-Vertical-Header-x-10/112284345603?hash=item1a24ab2503:g:Z8kAAOSwm8VUzafk
Charlie > On Jan 19, 2021, at 8:21 PM, Bryan Duke <[email protected]> wrote: > > If anyone can find some 0.05” press fit headers, that’d be perfect. Smaller > versions of these: > https://microcontrollershop.com/product_info.php?products_id=6552&osCsid=anp1cig2mlkv4j9083l85tpv41 > > <https://microcontrollershop.com/product_info.php?products_id=6552&osCsid=anp1cig2mlkv4j9083l85tpv41> > > I heard Digikey stocks similar header pins, but I haven’t been able to find > them yet. > > -Bryan > >> On Jan 19, 2021, at 1:01 PM, Bdale Garbee <[email protected] >> <mailto:[email protected]>> wrote: >> >> Chris Brown <[email protected] <mailto:[email protected]>> writes: >> >>> I would be interested in connecting with USB. Can you please ask Keith to >>> provide the details? >> >> Keith and I just talked this through. Conceptually, it's easy. In >> practice, it's really fiddly, because what you have to play with are 3 >> small holes in the board on 0.050 inch centers. >> >> I'm going to CC our mailing list on this reply so this becomes more >> general knowledge. The question for those seeing this for the first >> time, is how to use USB to configure a TeleMini v3.0 board? >> >> Leaving the micro USB connector off is one of the ways we made TeleMini >> fit in an 18mm tube. But the main system on chip has USB available >> still, so when he laid out the board, Keith brought the required pins >> out, thinking it might be helpful in debugging or something, and our >> software should know what to do if it sees a TeleMini show up on USB. >> >> On one edge of the board (see attached photo), there are 6 holes in a >> row, one of which has a square pad, though you really have to squint at >> it to see which pad that is. It's the third pad in from one end, and >> has 2 round holes on one side and 3 on the other. The side with two is >> what you care about... they are the USB plus and minus data lines. 3 >> connections will do it, GND / D+ / D-. >> >> To actually connect to these holes, the quickest hack is probably to >> take some existing USB A to mini or micro B cable, cut the B connector >> off, then carefully strip the outer jacket, strip the conductors, twist >> and tin their stranded leads, and just stick them into the appropriate >> holes. Note that the usual color code for such cables is black for >> ground, red for 5V (avoid like the plague getting that near our >> boards!), green and white for the data lines. On the cables we buy for >> TeleDongle, et al, green is D+ and white is D-, but sadly not everyone >> seems to get that right who sells cheap cables. I've never seen anyone >> mess up the red and black wires. Fortunately, if you get the data lines >> reversed, it won't hurt anything, it just won't work. >> >> It's going to be a bit of a challenge to keep everything making contact >> long enough to talk to the board. You might consider finding some >> 50-mil pitch header pins to solder the wires to so you have a single >> thing you're putting in and out of the holes. Or maybe some micro >> grabbers on each wire? If you come up with some great solution, please >> let me know. >> >> In any case, once you have the USB port wired up, with a battery and >> power switch hooked up to the board it should show up as a USB device on >> your computer and you should be able to use altosui to configure it just >> like any of our other products. >> >> Have fun! >> >> Regards, >> >> Bdale >> >> <telemini-v3.0-top.pdf>_______________________________________________ >> altusmetrum mailing list >> [email protected] <mailto:[email protected]> >> http://lists.gag.com/mailman/listinfo/altusmetrum > > _______________________________________________ > altusmetrum mailing list > [email protected] > http://lists.gag.com/mailman/listinfo/altusmetrum
_______________________________________________ altusmetrum mailing list [email protected] http://lists.gag.com/mailman/listinfo/altusmetrum
