@ Lichtsignaal
Sure, serial speed is set to 9600 baud and wiring is same when using HardSer config.
ESP8266 > Arduino:
CHPD > 3,3V (breadboard) VCC > 3.3V (breadboard) GRND > GRND RX > TX (in my last case Pin 8 in SoftSer config) TX > RX (in my last case Pin 7 in SoftSer config)
I followed this picture for cabling…
As I mentioned above, with this cabling and HardSer config its working brilliant… no problem at all, no issues like “… first start Arduino then ESP…” or similar tricks
And I tried it with first starting the Arduino and then ESP… same issue here…
And I’m using the example "ESP8266_Shield_SoftSer out of the box, just changing token and wifi credentials, that’s all.
Same with ESP8266_Shield_HardSer examlpe, NO additional changes, no code added etc…