While the ESP32 is clearly a superior piece of hardware, we think you’ll agree that the ESP8266 is just too useful not to have a dozen or so kicking around the parts bin at any given time. Ch… ...

The ESP32 module comes preloaded with a ROM image with an AT command set, just like the ESP8266 did. If you want to waste 95% of this chip’s potential by using it as a glorified serial-to-WiFi ...

The new module is the single-core 240 MHz chip so it won’t be as fast as ESP32’s with dual-core. “The ESP8266 started a small revolution ... Specifications of the ESP32-S2 WROOM Module ...