To erase the ESP32 Flash Memory, you first need to install the ESP tool on your computer. Open the Windows Terminal or Command Prompt and type the following command. After that, hit Enter.

SuperB open source Bee-compatible ESP32 module. 11:11 am January 30, 2019 By Julian Horsey. ... – Integrated 4 MB flash – we may upgrade this to 16 MB – Sleep current is less than 5 μA ...