Hello Again Dan, Seth here. I am currently working on a Flying BBBlue, too. At least, I thought this is what you were working on. I have arducopter on my BBBlue, some .service files to boot some specific commands, and I am trying to pair a receiver as of now.
... If you are not using the BBBlue for flying, sorry for elongating my post. But if you are using the BBBlue to fly, we may be able to use each other. Who knows? Seth P.S. The only steps I need to take to complete my project is to pair the transmitter and receiver and then I need to power my ESCs. I guess I need to calibrate the ESCs, too. Anyway, good flying and if you have time when you return, shoot a post to let me know about the BBBlue excursion. On Friday, February 15, 2019 at 2:55:51 AM UTC-6, Dan Hammans wrote: > > Also, it has been EONS since I've seen a netcom.com address. That's cool > :). > > On Fri, Feb 15, 2019 at 2:54 AM Dan Hammans <[email protected] > <javascript:>> wrote: > >> You guys are great. I'm going out of town for the weekend so I've ordered >> a couple of the parts suggested to give it a try. Should be here when I get >> back. >> >> Thanks! >> >> Dan >> >> On Thu, Feb 14, 2019 at 1:20 PM Mala Dies <[email protected] <javascript:>> >> wrote: >> >>> Hello, >>> >>> While reviewing this info. you provided, an optocoupler might just work. >>> I found a site that sells them but I also found on that site, some >>> datasheet. See here for the datasheet: >>> https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM1200_1201.pdf >>> . >>> >>> Seth >>> >>> P.S. I have not tried this conversion yet so my mind would say take >>> time. Do not rush if possible. Oh and from what I understand, the >>> optocoupler works by shutting off instead of transferring the signal any >>> further. The DigiKey site has some and I found one that is unidirectional: >>> https://www.digikey.com/product-detail/en/analog-devices-inc/ADUM1201AR/ADUM1201AR-ND/725709&?gclid=CjwKCAiAwJTjBRBhEiwA56V7q0A4N0DBiSwt5Wm4ahl6pdiosiiP-YLgdJr-Y9oH2wYF3XcMOvw7FBoCLmoQAvD_BwE. >>> >>> That datasheet above is the sheet for this link. >>> >>> On Wednesday, February 13, 2019 at 8:57:09 PM UTC-6, Dan Hammans wrote: >>>> >>>> I'm kind of at a standstill. I found a circuit design to use a >>>> transistor to take a 3.3v input, and switch on the 5v for the GPS but then >>>> while doing more reading someone said that was a really bad idea because >>>> they weren't opto-isolated. I didn't really know what that was, but after >>>> reading it makes a little more sense. If the transistor fails or is >>>> otherwise damaged, it could end up feeding 5v into the 3.3v section of the >>>> Beagleboard and fry it. >>>> >>>> I was looking for an opto-isolated transistor relay, found one but >>>> haven't gotten one ordered yet to try it out. >>>> >>>> That's pretty much the status, I was going to try and talk to an >>>> electrical engineer friend of mine to see what he thought of the >>>> situation. >>>> What do you think? >>>> >>>> Thanks, >>>> Dan >>>> >>>> On Wed, Feb 13, 2019 at 8:17 PM Mala Dies <[email protected]> wrote: >>>> >>>>> Hey Man, >>>>> >>>>> Seth here. Did you ever figure out the issue w/ setting up a GPIO pin >>>>> to control the 5v for your GPS? >>>>> >>>>> Seth >>>>> >>>>> On Sunday, February 10, 2019 at 12:38:52 AM UTC-6, Dan Hammans wrote: >>>>>> >>>>>> No apologies needed, I'm just trying to figure this out. What I >>>>>> meant was using a GPIO pin to trigger the relay/transistor which would >>>>>> then >>>>>> switch on +5v. >>>>>> >>>>>> I'll take a look at the links above, appreciate your help! >>>>>> >>>>>> On Saturday, February 9, 2019 at 11:58:08 PM UTC-6, Mala Dies wrote: >>>>>>> >>>>>>> Sir, >>>>>>> >>>>>>> I just found a source for ideas: >>>>>>> https://next-hack.com/index.php/2017/09/15/how-to-interface-a-5v-output-to-a-3-3v-input/. >>>>>>> >>>>>>> Adding a button and software could prove valuable. If anything, it may >>>>>>> help >>>>>>> a bit. >>>>>>> >>>>>>> Seth >>>>>>> >>>>>>> P.S. GPIO works for buttons, LEDs, and other circuitry. I am sure >>>>>>> you know how to do things. I was trying to latch on to learn more. >>>>>>> Sorry. >>>>>>> >>>>>>> On Saturday, February 9, 2019 at 11:19:47 PM UTC-6, Dan Hammans >>>>>>> wrote: >>>>>>>> >>>>>>>> Hi Seth, I really appreciate the reply. >>>>>>>> >>>>>>>> I was afraid of that. My GPS module requires +5v. Is there another >>>>>>>> +5v source on the board that is switched off when the board powers >>>>>>>> down? >>>>>>>> What about the black power connector above the GPS UART port? >>>>>>>> >>>>>>>> Otherwise it looks like I will be building a resistor circuit and >>>>>>>> triggering it from a GPIO pin. >>>>>>>> >>>>>>>> On Saturday, February 9, 2019 at 11:07:14 PM UTC-6, Mala Dies wrote: >>>>>>>>> >>>>>>>>> Sir, >>>>>>>>> >>>>>>>>> Seth here. I just got done dealing w/ someone on this subject. The >>>>>>>>> 5v pin from the GPS connection cannot be "un"powered. It stays >>>>>>>>> powered on >>>>>>>>> while the board has power. >>>>>>>>> >>>>>>>>> Seth >>>>>>>>> >>>>>>>>> P.S. Try UART instead at 3.3v. This may help. >>>>>>>>> >>>>>>>>> On Saturday, February 9, 2019 at 2:58:12 AM UTC-6, Dan Hammans >>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> I'm not sure that I understand the difference between the >>>>>>>>>> Beagleboard forum and the Beaglebone forum, but thought I would try >>>>>>>>>> posting >>>>>>>>>> here as well. >>>>>>>>>> >>>>>>>>>> I have a Beaglebone Blue connected to a GPS module via the GPS >>>>>>>>>> micro JST connector. I selected this one because it has +5v, which >>>>>>>>>> is what >>>>>>>>>> is needed for my GPS as opposed to 3.3v on the other UARTs. >>>>>>>>>> >>>>>>>>>> The GPS module works correctly, but my issue is I can't power it >>>>>>>>>> down. It's been suggested that the 5v rail can't be shut down with >>>>>>>>>> the >>>>>>>>>> battery connected, but that seems rather odd to me. The also >>>>>>>>>> suggested >>>>>>>>>> solution was to use a transistor to switch 5v power via a 3.3v GPIO >>>>>>>>>> pin. I >>>>>>>>>> suppose that's a solution but not a very elegant one if the board >>>>>>>>>> can be >>>>>>>>>> somehow configured to power off the 5v rail. It seems like this >>>>>>>>>> should be >>>>>>>>>> possible, albiet not easily accessible. There doesn't seem to be >>>>>>>>>> much/any >>>>>>>>>> documentation available about this at all. >>>>>>>>>> >>>>>>>>>> I made a Youtube video showing what's going on; >>>>>>>>>> https://www.youtube.com/watch?v=9xrXKRy97Yk >>>>>>>>>> >>>>>>>>>> Any suggestions appreciated, otherwise I think I'm going to have >>>>>>>>>> to go down the path of the transistor relay... >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/beagleboard/a081d618-f75a-4343-9fb1-501aec0421a8%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/beagleboard/a081d618-f75a-4343-9fb1-501aec0421a8%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected] <javascript:>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/9d44d98c-b736-4706-9c9d-2bb917096bf6%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/beagleboard/9d44d98c-b736-4706-9c9d-2bb917096bf6%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ef73df42-2930-465d-832b-a683f12c22ec%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
