I’m at Hacker School, and we’re working on a project trying to hook up the Spark Core to a remote control car. We’ve had all kinds of issues flashing the Core, even had trouble claiming it over the Wifi at first, though after manually uploading the credentials via serial, it connects to the network fine. We did also try claiming and flashing the Core over a temporary phone-tethered wifi setup, and that worked perfectly.
There is a heavy-duty wifi network here, with upwards of 60 people connected at a time and an appropriately fancy router. We tried updating the firmware on the Spark Core, etc., and it solved the cyan flash of death issue, but we still continue to have problems connected and flashing over the wifi.
When we try to flash it, it does start to flash magenta, but then it does one of the following:
- the light simply dies, and then eventually the Core restarts and goes through the blinking green > blinking cyan > breathing cyan cycle, unflashed
- it continues blinking magenta forever and we have to unplug and replug it
- it goes into cyan flash of death [this particular issue was solved by a firmware update]
While working late at night, we did notice that when fewer people were around, the Spark Core did flash successfully, multiple times–so we suspect that having too many people on the network may be the culprit. Has anyone else encountered this or know how we can address it?