I have an older AI-Thinker ESP8266 (bought 2 years ago) bare bones which I’ve got up and running fine and I have been able to upload the blink sketch.
I’ve been trying to find out what the situation is with the firmware. Do I need to update the firmware to bring it up to date, or, when I upload from the Arduino IDE, is that replacing the entire firmware with a version from Arduino?
I know uploading from Arduino overwrites the standard AT command bit of the firmware, but what about things like the TCP/IP stack? If Arduino is flashing the entire device, then of course it doesn’t matter if I update the firmware or not, as it will just get replaced, which is fine, saves me bothering.