A strange "spooky action at a distance" issue... Have a very simple, custom PCB which we solder Photons to. It just exposes some of the I/O onto connectors. There is a capacitor on the 3V3 to GND pins and as well as some others, and that is about it. The PCB meets with the Particle ground plane re…

Thanks, that would be good, and It’s certainly something for me to go on. Having the board populated with a photon that is known to exhibit the problem ensures that I’m certain to reproduce the problem, but if may be reproducible with an unpopulated board too.

Which address should we ship to ?

No directly connected the primary topic, but rather, related to not getting an IP address… I find that the Photon can not connect to some new cell phone hotspots and new routers. I don’t mean not connect, because they do, but they don’t receive an IP address in those cases. The ESP8266 on the other…

@shiv , my guess is that it is one and the same problem.

@mdma ( @MORA ), I will post to you an unpopulated PCB to enable you to reproduce the fault. All you need to do to reproduce the issue is sit the Photon on the board (have covered the pads with sticky tape so as to allow you to do this without shorting the module). I have the Particle address as …

@MORA , note the two addresses I guessed at are wrong! @mdma can let you know what it is.

We have developed a PCB (different to the original one mentioned at the start of this ticket) that we solder the Photon module to. Have come up to the same problem as first outlined in this ticket which is that mobile devices (HTC ONE and iPad) cannot connect to the Photon in SoftAP mode. The mob…

That’s also an issue raised earlier here iOS 10 rejects a Photon in setup iOS 10 and SoftAP And I haven’t heard anything regarding solutions so far.

@ScruffR , I can report that a Photon module with headers sitting on a prototyping bread board works fine with SoftAP (Android mobile and iPad) , whereas soldered to my PCB doesn’t. So there seems to be some subtle ** hardware issue **, most likely the radio because signal strength is excellent, but…

Photon SoftAP mode - mobile cannot obtain address

Troubleshooting

UMD April 7, 2016, 8:37am 26

Or is the address

  1400 Tennessee St., #4
  San Francisco, CA 94107

Photon PCB design question EMC, keep out and ground loops

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Photon SoftAP mode - mobile cannot obtain address

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