I have some old (2 years) Imp 001 cards, in Sparkfun ImpShield. On a 1.5A 5V PSU.
Blinkup from Samsung Galaxy 6, with power save off and brightness up.
Seems very random whether the blinkup works. And when it does, it doesn’t see the closest WiFi point (Draytek 2710n)… but it will connect to a more remote one (Draytek 2860). Then when I move the device to it’s final position (next to the central heating plant) I get red blinking ‘can’t see wifi’ even though the sig strength is OK (3 of 5 on the Samsung for the 2860, 5 of 5 for the 2710n).
Any clues? Why can’t it see the 2710n when that’s right there in the room? Also I turned off the CH system in case there was some sort of interference so it’s not that. And it’s not leaning against any wiring or anything.
Device is 2364614cead3dbee